CN106688416A - Radix pseudostellariae fertilizing formula and fertilizing method thereof - Google Patents
Radix pseudostellariae fertilizing formula and fertilizing method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
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Abstract
The invention discloses a radix pseudostellariae fertilizing formula and a fertilizing method thereof. The radix pseudostellariae fertilizing formula comprises urea with an application amount of 20.22-24.56 kg/667 m<2>, calcium superphosphate with an application amount of 15.00-18.34 kg/667 m<2> and potassium sulfate with an application amount of 9.9-12.10 kg/667 m<2>; 1/3 of a nitrogen fertilizer is applied in a manner of a base fertilizer, and 2/3 of the nitrogen fertilizer is applied in a manner of top application; a phosphorus fertilizer is applied once in a manner of the base fertilizer; 1/4 of a potash fertilizer is applied in a manner of the base fertilizer, and 3/4 of the potash fertilizer is applied in a manner of top application; the nitrogen fertilizer and the potash fertilizer are subjected to top application in early April. With the adoption of the radix pseudostellariae fertilizing formula disclosed by the invention, not only the demands on the content of nitrogen, phosphorus and potassium nutrients during the growth period of radix pseudostellariae, but also the coordination of the proportion of the nitrogen, phosphorus and potassium nutrients required for the growth of the radix pseudostellariae is met, so that the high and stable yield of the radix pseudostellariae is ensured; meanwhile, the balanced fertilization is performed according to the amount of fertilizers needed for the radix pseudostellariae, so that the fertilizers are not wasted, the production cost is reduced, the soil degradation is avoided, and the soil fertility is kept.
Description
Technical field
The present invention relates to a kind of radix pseudostellariae fertilizer application formula and its fertilizing method, belong to radix pseudostellariae technical field of fertilizer application.
Background technology
Radix pseudostellariae (English name RADIX PSEUDOSTELLARIAE) is《Chinese Pharmacopoeia》The herbal medicine included, medicinal source stone
The drying of bamboo section plant caryophyllaceous ginseng (Pseudostellaria heterophylla (Miq.) Pax ex Pax et Hoffm.)
Root tuber, radix pseudostellariae herbaceos perennial, root tuber spindle long, white, slightly band sallow, stem is upright, and Dan Sheng, blade falls to drape over one's shoulders pin
Shape, top blunt point, base portion is gradually narrow in handle long, and blade width egg shape or water chestnut shape are avette, and radix pseudostellariae is liked being grown in warm and moist
Environment, is afraid of high temperature, is distributed in the ground such as East China, Central China, North China, northeast and northwest, and medicinal material main product is in Fujian, Guizhou, Jiangsu, mountain
The ground such as east, Anhui, are determined to list " can be used for the Chinese medicine list of health food " in by the Ministry of Public Health, and radix pseudostellariae is sweet, slight bitter, puts down,
Returns spleen, lung channel, body lubricant nature and, tonifying Qi promotes the production of body fluid.Existing planting technology is uneven to radix pseudostellariae fertilising, causes radix pseudostellariae root tuber few
And the problem that small, yield is high and unstable, quality decline, fertilizer are wasted.
The content of the invention
The technical problem to be solved in the present invention is：A kind of radix pseudostellariae fertilizer application formula and its fertilizing method are provided, according to crown prince
N P and K amount needed for joining the growth of plant determines the amount of nutrients needed for producing dry radix pseudostellariae, more scientific, accurate more true property of applying fertilizer, both
Disclosure satisfy that plant strain growth needs and does not waste fertilizer, yield is greatly improved and stable yield, radix pseudostellariae root tuber is big, quality better,
To overcome the blindness of existing fertilizer practice.
Technical scheme：A kind of radix pseudostellariae fertilizer application formula, its weight ratio of constituents is：Urea 20.22-
24.56kg/667m2, 15.00-18.34kg/667m of calcium superphosphate2, 9.9-12.10kg/667m of potassium sulfate2。
P in N, calcium superphosphate in above-mentioned urea2O5, K in potassium sulfate2Proportioning between O is 1：0.1：1.07, it can be ensured that
The stable high yield of radix pseudostellariae, can excessively cause fertilizer to waste, and influence soil fertility, and production cost increases, and I haven't seen you for ages excessively causes crown prince
Subalimentation needed for joining growth, so as to influence growth and the yield of radix pseudostellariae.
A kind of fertilizing method of radix pseudostellariae fertilizer application formula, including breeding time N P and K fertilizer requirement, npk fertilizer apply useless
Method, its step is as follows：
(1) N P and K fertilizer requirement wherein nitrogen with pure N, phosphorus with P2O5With potassium with K2O is calculated, and its formula is according to N:P2O5:K2O matches somebody with somebody
The dry radix pseudostellariaes of 100kg are often produced than, it is necessary to from soil absorbed nitrogen (N) 1.86-2.26kg, phosphorus (P2O5)0.18—0.22kg、
Potassium (K2O)1.98—2.42kg；The proportioning of N P and K is：1：0.1：1.07；Then by radix pseudostellariae in claim 1 or 2 be formulated into
Row fertilising；The amount of application of urea is 20.22-24.56kg/667m2, the amount of application of calcium superphosphate is 15.00-18.34kg/
667m2, the amount of application of potassium sulfate is 9.9-12.10kg/667m2；
(2) when radix pseudostellariae unpacks plantation, 1/3 urea is applied as the form of base fertilizer, and 1/4 potassium sulfate is in the form of base fertilizer
Apply, calcium superphosphate is disposably applied by the way of base manure；Remaining 2/3 urea and 3/4 potassium sulfate in the April the first tenday period of a month with
The form topdressed is applied.
Beneficial effects of the present invention：There is following effect compared with prior art：
(1) formula of the invention disclosure satisfy that demand of the radix pseudostellariae breeding time to npk nutrient amount, and radix pseudostellariae is met again
The coordination of npk nutrient ratio needed for growth；
(2) amount of nutrients needed for radix pseudostellariae is met using the dose of inventive formulation, it is ensured that radix pseudostellariae stable high yield, too
Son ginseng yield can reach 58.92kg/667m2More than, it is compared to the existing disposable base fertilizer treatment radix pseudostellariae yield that applies
41.88kg/667m2Fertilizer treatment radix pseudostellariae yield is not 15.11kg/667m2, output increased is obviously improved, and base fertilizer+chase after
The big ginseng and middle ginseng of fertilizer treatment radix pseudostellariae are shared relatively higher, and quality is more preferable, compared to single fertilization, effect is significant；
(3) npk nutrient amount and ratio needed for meeting radix pseudostellariae growth using the present invention, the science for carrying out in batches are applied
Fertilizer, can allow the fertilizer for applying fully to be utilized by radix pseudostellariae breeding time, not result in fertilizer waste, greatly reduce applying for fertilizer
Enter, save production cost, apply fertilizer in batches, disclosure satisfy that the fertilizer demand in each growth period of radix pseudostellariae, promote the abundant of radix pseudostellariae
Growth, yield is greatly improved；
(4) present invention meets the balance fertilizing of radix pseudostellariae growth according to the amount of nutrients and ratio needed for plant, it is to avoid
Soil degradation, preservation of fertility；
(5) present invention topdress applying using the first tenday period of a month in four months, thus when radix pseudostellariae grow 6-10 piece leaves, exactly grow sturdily
The strong growth stage, apply and topdress, the speed of growth of radix pseudostellariae can be greatly improved, improved the yield and quality and stable yield.
Specific embodiment
Radix pseudostellariae N P and K fertilizer requirement and proportioning and fertilizing method, including radix pseudostellariae breeding time npk nutrient demand
With the ratio and fertilizing method of npk nutrient, often produce the dry radix pseudostellariaes of 100kg, it is necessary to from soil absorbed nitrogen (N) 0.93-
1.13kg, phosphorus (P2O5) 0.09-0.11kg, potassium (K2O)0.99—1.21kg；The proportioning of N P and K is 1：0.1：1.07, apply
The amount of urea, calcium superphosphate and potassium sulfate is respectively 20.22-24.56kg/667m of urea2, calcium superphosphate 15.00-
18.34kg/667m2, 9.9-12.10kg/667m of potassium sulfate2.Its fertilizing method, including breeding time N P and K fertilizer requirement, nitrogen phosphorus
Potassic fertilizer applies useless method, and its step is as follows：
(1) N P and K fertilizer requirement wherein nitrogen with pure N, phosphorus with P2O5With potassium with K2O is calculated, and its formula is according to N:P2O5:K2O matches somebody with somebody
The dry radix pseudostellariaes of 100kg are often produced than, it is necessary to from soil absorbed nitrogen (N) 1.86-2.26kg, phosphorus (P2O5)0.18—0.22kg、
Potassium (K2O)1.98—2.42kg；The proportioning of N P and K is：1：0.1：1.07；Then by radix pseudostellariae in claim 1 or 2 be formulated into
Row fertilising；The amount of application of urea is 20.22-24.56kg/667m2, the amount of application of calcium superphosphate is 15.00-18.34kg/
667m2, the amount of application of potassium sulfate is 9.9-12.10kg/667m2；
(2) when radix pseudostellariae unpacks plantation, 1/3 urea is applied as the form of base fertilizer, and 1/4 potassium sulfate is in the form of base fertilizer
Apply, calcium superphosphate is disposably applied by the way of base manure；Remaining 2/3 urea and 3/4 potassium sulfate in the April the first tenday period of a month with
The form topdressed is applied.
In order to beneficial effects of the present invention are better described, tested as follows：
Npk nutrient amount and grinding for matching needed for radix pseudostellariae breeding cycle is carried out in Guizhou Province radix pseudostellariae GAP bases
Study carefully.
1. experimental condition and method
Test in 2013-2014, Guizhou Province Shibing County radix pseudostellariae GAP bases and around for many years planting site carry out, select 3
Individual testing site is respectively Shibing County Niu great Chang towns mountain pass village, the big field town head col of Shibing County ox and Shibing County area just outside a city gate town, 3 testing sites
Experimental field the different tests place under relatively uniform environment is carried out, and three testing sites belong to medium fertility soil.Selection
The soil fertility of three testing sites is shown in Table 1.
Each testing site soil nutrient status of table 1
| Place | Soil pH | Alkali-hydrolyzable nitrogen (mg/kg) | Rapid available phosphorus (mg/kg) | Available potassium (mg/kg) | Organic matter (g/kg) |
| Testing site one | 4.58 | 40.19 | 7.03 | 93.56 | 30.15 |
| Testing site two | 4.39 | 44.32 | 7.74 | 109.24 | 28.89 |
| Testing site three | 4.98 | 38.74 | 7.58 | 125.17 | 36.58 |
Radix pseudostellariae introduces a collection derives from Guizhou Province Shibing County radix pseudostellariae GAP planting bases, with radix pseudostellariae kind root as material to be tested,
Planted in November, 2013, by the way of conventional fertilizer application, the field management measure one such as three fertilisings of testing site, weedings
Cause.Emerge it is neat after start sampling, sampling in every 20 days once, until radix pseudostellariae falls seedling.Test data is average with 3 testing sites
Value.
In 2014-2015, treatment of topdressing is added using base fertilizer according to breeding time in identical test point, disposably apply base fertilizer
Treatment and not fertilizer treatment, determine three the radix pseudostellariae yield and classification ratio for the treatment of.
2. interpretation of result
2.1 radix pseudostellariae breeding cycle dry-matter accumulation amounts change
Each growthdevelopmental stage radix pseudostellariae plant and each organ dry, are shown in Table 2, radix pseudostellariae after planting to before emerging, as long as warm
Degree is suitable, and seed ginseng is begun to grow fibrous root, and reed head is slowly germinateed, and radix pseudostellariae is emerged and just bloom, and is emerged since early or mid Febuary, and 3
Month the first tenday period of a month all sprout substantially, and March 10 was sampled to radix pseudostellariae, and now complete stool dry weight only has 0.11g, and now root tuber (seed ginseng) is just
There is 0.06g；Radix pseudostellariae enters growth early stage after emerging, from early or mid March to mid or late April, radix pseudostellariae has growth early stage
Seedling is just bloomed and result, while underground part fibrous root starts the characteristic expanded, in growth early stage, the radix pseudostellariae speed of growth is slow, main
If blade is grown, the complete stool dry weight of April 20 is 0.56g, and now blade weight is 0.30g, account for the half of plant gross weight
Below now root tuber and stem weight are quite 0.11g；From mid or late April to mid or late May, radix pseudostellariae enters vigorous growth
Phase, this stage plant fast-growth, dry-matter accumulation amount increases fast, and the complete stool dry matter weight of May 30 reaches 2.27g, and overground part is done
Material accumulation account for the half of complete stool dry weight apparently higher than underground part, wherein leaf dry weight 1.10g, and now root tuber weight is
0.64g；Before seedling is fallen from late May to radix pseudostellariae, into Later growth, mainly the nutrient backflow phase of aerial part, this stage
Radix pseudostellariae underground part root tuber is expanded rapidly, and the complete stool dry weight of June 20 is 2.60g, and now root tuber dry weight reaches 1.16g, and blade is
0.94g；Late June radix pseudostellariae starts down seedling, and the seedling that fallen at the beginning of 7 months terminates, and the sampling of July 10, overground part is withered completely, now
Complete stool dry weight is that underground part gross dry weight is 1.89g, and compared with June 20, complete stool dry weight reduces 0.71g.
Each organ of the radix pseudostellariae of table 2 and complete stool dry-matter accumulation amount (g/ plants of FW)
| Sample time | Leaf | Stem | Flower and fruit | Root tuber | Fibrous root | Complete stool |
| March 10 | 0.01 | 0.03 | 0.001 | 0.06 | 0.004 | 0.11 |
| March 30 | 0.11 | 0.07 | 0.01 | 0.07 | 0.01 | 0.28 |
| April 20 | 0.30 | 0.11 | 0.02 | 0.11 | 0.01 | 0.56 |
| May 10 | 0.67 | 0.23 | 0.05 | 0.23 | 0.03 | 1.22 |
| May 30 | 1.10 | 0.34 | 0.08 | 0.64 | 0.10 | 2.27 |
| June 20 | 0.94 | 0.32 | 0.04 | 1.16 | 0.13 | 2.60 |
| July 10 | —— | —— | —— | 1.78 | 0.11 | 1.89 |
2.2 radix pseudostellariaes are to N. P. K absorption amount and its ratio
Radix pseudostellariae is in potassium to N. P. K absorption amount in before seedling each breeding time>Nitrogen>Phosphorus, nitrogen in the radix pseudostellariae root tuber of after seedling
>Potassium>Phosphorus.Each Accumulation of nutrient element has differences in different growth phases.Seedling stage (before early or mid March) plant pair N P and K
Uptake and accumulation amount is only accounted for full growth period 6.91%, and 4.93%, 11.93%, assimilation ratio is 1：0.07：1.84.In growth early stage
(early or mid March to mid or late April) plant pair N P and K accumulation slowly rises.Mid or late April to mid or late May radix pseudostellariae enters
Enter vigorous period, at most, it is maximum that N. P. K absorption cumulant accounts for whole growth period to this phase Nutrient Absorption accumulation, respectively
54.02%, 52.24%, 56.32%, N. P. K absorption ratio is 1：0.10：1.07, shape of this phase to radix pseudostellariae beet yield
Into the most key period, such as nutrient dificiency or unbalanced will have a strong impact on radix pseudostellariae yield, therefore, need to be in early or mid April pair
Radix pseudostellariae carries out urea and topdressing for potassium sulfate applies.Mid or late May to mid or late June, into Later growth, plant strain growth delays
Slowly, the uptake to N P and K gradually slows down, and mid or late June lower blade starts to turn yellow, and the accumulation of nitrogen phosphorus reaches maximum, and
The accumulation of potassium is declined slightly.Hereafter, plant enters seedling stage, and aerial part is gradually withered, and nutrient flows back to root tuber portion, root tuber
Quickly expand and enrich, N P and K accumulation is on a declining curve, wherein nitrogen accumulation change is little, shows nitrogen to block
Root transfer amount is most；Potassium element accumulation declines maximum, and 9.90 are dropped to by 54.92, illustrates that potassium element is little to root tuber transfer amount,
And it is mainly used in overground part growth.
Different growing stages radix pseudostellariae is shown in Table 3 to n-p-k element uptake, seedling stage (before early or mid March), crown prince
Ginseng is less to n-p-k element uptake, into growth early stage (early or mid March to mid or late April), plant pair nutrient
Uptake is slowly increased, into vigorous period (mid or late April to mid or late May), absorption of the radix pseudostellariae to n-p-k element
Amount increases sharply, and this is dynamically basically identical with dry-matter accumulation.To Later growth (mid or late May to mid or late June) radix pseudostellariae
Uptake increasing degree to n-p-k element gradually slows down.To the when of falling seedling stage (mid or late June to early July), each nutrition unit
Element is presented negative growth trend in plant interior accumulation amount, and the amplitude that wherein potassium element declines is maximum.
Also known by table 3, the size of the accumulation total amount that radix pseudostellariae to before seedling (June 20) absorbs to n-p-k element is suitable
Sequence is successively potassium>Nitrogen>Phosphorus, respectively 54.92,51.43 and 5.22mg/ plants；Per 667m218000-22000 plants of seed ginsengs of plantation,
Radix pseudostellariae trepang can be produced under the conditions of soil medium fertility and weighs about 50kg, then plant need to from soil absorbed nitrogen (N) 0.93-
1.13kg, phosphorus (P2O5) 0.09-0.11kg, potassium (K2O)0.99—1.21kg.The nitrogen phosphoris and potassium fertilizer ratio that it absorbs is 1：0.10：
1.07。
Each period N P and K of the radix pseudostellariae plant of table 3 accumulates total amount (mg/ plants)
| Sample time | N | P2O5 | K2O |
| March 10 | 3.57 | 0.26 | 6.55 |
| March 30 | 9.22 | 0.79 | 12.72 |
| April 20 | 17.11 | 1.52 | 23.86 |
| May 10 | 29.80 | 2.74 | 45.19 |
| May 30 | 44.90 | 4.25 | 54.79 |
| June 20 | 51.43 | 5.22 | 54.92 |
| July 10 | 51.66 | 3.68 | 9.90 |
The fertilizing method of 2.3 radix pseudostellariae N P and Ks
Produce dry radix pseudostellariae 100kg, then plant need to from soil absorbed nitrogen (N) 1.86-2.26kg, phosphorus (P2O5)0.18—
0.22kg, potassium (K2O) 1.98-2.42kg determines the amount of application of radix pseudostellariae fertilizer；According to each growthdevelopmental stage of radix pseudostellariae to supporting
The situation of point demand determines the fertilizing time of radix pseudostellariae, and the method for fertilising determines according to the characteristics of conventional fertilizer.
Radix pseudostellariae breeding time need to from soil absorbed nitrogen (N) 1.86-2.26kg, conventional nitrogenous fertilizer is urea, and urea is in
This season utilization rate Deng fertile soil is calculated according to 20%, and urea nitrogen content is 46%, it may be determined that the amount of application of nitrogenous fertilizer is
20.22—24.56kg.The radix pseudostellariae of April 20 into before vigorous period, it is necessary to nitrogen amount account for the 1/ of whole breeding time
3, therefore, nitrogenous fertilizer 1/3 is applied in the form of base fertilizer, and 2/3 is applied in the form of topdressing.Dressing time should be protected in 10 days or so April
The phase buffer that card fertilizer is combined with soil.
Radix pseudostellariae breeding time need to absorb phosphorus (P from soil2O5) 0.18-0.22kg, conventional phosphate fertilizer is calcium superphosphate, mistake
Calcium phosphate is calculated in this season utilization rate of medium fertility soil according to 10%, and calcium superphosphate contains P2O5Amount is 12%, it may be determined that phosphate fertilizer
Amount of application be 15-18.34kg.Because radix pseudostellariae growth course follows phase to the need of phosphate fertilizer, and phosphate fertilizer fertilising
Concentration is applied, the contact area with soil is reduced, therefore phosphate fertilizer is disposably applied by the way of base manure.
Radix pseudostellariae breeding time need to absorb potassium (K from soil2O) 1.98-2.42kg, conventional potash fertilizer is potassium sulfate, sulfuric acid
Potassium is calculated in this season utilization rate of medium fertility soil according to 40%, and potassium sulfate contains K2O amounts are 50%, it may be determined that the administration of potash fertilizer
Amount is 9.9-12.10kg.The radix pseudostellariae of April 20 into before vigorous period, it is necessary to potassium element amount account for whole breeding time
1/4, therefore, potash fertilizer 1/4 is applied in the form of base fertilizer, and 3/4 is applied in the form of topdressing.Dressing time should in 10 days or so April,
Ensure that fertilizer is combined closely with soil, absorption of the plant to nutrient is not influenceed.
2.4 radix pseudostellariae yield and root tuber comparative study
By giving birth to base fertilizer and the method fertilising being combined of topdressing to radix pseudostellariae, base fertilizer and non-fertilizer treatment are disposably applied,
Three yield for processing and root tuber size carry out comparative study, the results are shown in Table 4.Produced according to the base fertilizer+treatment radix pseudostellariae that topdresses
Amount highest, dry weight is 58.92kg/667m2, disposably apply base fertilizer treatment radix pseudostellariae yield secondly, it is 41.88kg/667m2, no
Fertilizer treatment radix pseudostellariae yield is minimum, is 15.11kg/667m2.Three treatment volume variances reach the level of signifiance.
Radix pseudostellariae to three treatment harvestings is classified, big ginseng (single ginseng fresh weight>2g), middle ginseng (single ginseng fresh weight
1g -2g), small ginseng (single ginseng fresh weight<1g), the ratio shared by three kinds of specification radix pseudostellariaes of each treatment, base fertilizer+topdress are counted respectively
Ratio shared by the treatment big ginseng of radix pseudostellariae is 27.3%, and disposable base fertilizer treatment and not fertilizer treatment are without big ginseng；Base fertilizer+chase after
It is 44.3% to join shared ratio in fertilizer treatment radix pseudostellariae, and it is 32.1% to join shared ratio in disposable base fertilizer treatment, is not applied
Fertilizer treatment is joined without in；Base fertilizer+ratio processed shared by the small ginseng of radix pseudostellariae of topdressing is 28.4%, and disposable base fertilizer is processed shared by small ginseng
Ratio be 67.9%, not fertilizer treatment be all small ginseng；Join greatly after being done with middle ginseng as radix pseudostellariae commodity, and small ginseng Drying rate
Low, commodity is very poor after doing, it is seen then that the ratio shared by big ginseng and middle ginseng plays decisive role to dry radix pseudostellariae yield.Therefore,
The big ginseng and middle ginseng of the base fertilizer+treatment radix pseudostellariae that topdresses are shared relatively higher, and yield is also greatly improved.
The radix pseudostellariae yield of table 4 and classification ratio contrast
| Treatment | Yield (kg/667m2) | Big ginseng (%) | Middle ginseng (%) | Small ginseng (%) |
| Base fertilizer+topdress | 58.92a | 27.3% | 44.3% | 28.4% |
| Disposable base fertilizer | 41.88b | 0% | 32.1% | 67.9% |
| Do not apply fertilizer | 15.11c | 0% | 0% | 100% |
The present invention split application is carried out to the fertilizer requirement of N P and K according to radix pseudostellariae, often produce the dry radix pseudostellariaes of 100kg, it is necessary to
Absorbed nitrogen (N) 1.86-2.26kg, phosphorus (P from soil2O5) 0.18-0.22kg, potassium (K2O)1.98—2.42kg；N P and K
Proportioning be：1：0.1：1.07；The amount of application of urea is 20.22-24.56kg/667m2, the amount of application of calcium superphosphate is
15.00—18.34kg/667m2, the amount of application of potassium sulfate is 9.9-12.10kg/667m2；Nitrogenous fertilizer 1/3 is applied in the form of base fertilizer
Enter, 2/3 is applied in the form of topdressing, and phosphate fertilizer is disposably applied by the way of base manure, potash fertilizer 1/4 is applied in the form of base fertilizer,
3/4 is applied in the form of topdressing；Nitrogenous fertilizer and potash fertilizer topdressed in 10 days or so April.Radix pseudostellariae breeding time is met using the present invention
To the demand of npk nutrient amount, the coordination of npk nutrient ratio needed for radix pseudostellariae growth is met again, it is ensured that radix pseudostellariae high yield
Stable yields, while carry out balance fertilizing according to radix pseudostellariae fertilizer requirement, does not waste fertilizer, save production cost, it is to avoid soil degradation,
Preservation of fertility.
Claims (3)
1. a kind of radix pseudostellariae fertilizer application formula, it is characterised in that：Its weight ratio of constituents is：20.22-24.56kg/667m of urea2, mistake
15.00-18.34kg/667m of calcium phosphate2, 9.9-12.10kg/667m of potassium sulfate2。
2. a kind of radix pseudostellariae fertilizer application formula as claimed in claim 1, it is characterised in that：P in N, calcium superphosphate in urea2O5, sulphur
K in sour potassium2Proportioning between O is 1：0.1：1.07.
3. a kind of fertilizing method of radix pseudostellariae fertilizer application formula as claimed in claim 1 or 2, it is characterised in that：Including breeding time
N P and K fertilizer requirement, npk fertilizer apply useless method, and its step is as follows：
(1) N P and K fertilizer requirement wherein nitrogen with pure N, phosphorus with P2O5With potassium with K2O is calculated, and its formula is according to N:P2O5:K2O matches
Often production the dry radix pseudostellariaes of 100kg, it is necessary to from soil absorbed nitrogen (N) 1.86-2.26kg, phosphorus (P2O5) 0.18-0.22kg, potassium
(K2O)1.98—2.42kg；The proportioning of N P and K is：1：0.1：1.07；Then carried out by radix pseudostellariae formula in claim 1 or 2
Fertilising；The amount of application of urea is 20.22-24.56kg/667m2, the amount of application of calcium superphosphate is 15.00-18.34kg/
667m2, the amount of application of potassium sulfate is 9.9-12.10kg/667m2；
(2) when radix pseudostellariae unpacks plantation, 1/3 urea is applied as the form of base fertilizer, and 1/4 potassium sulfate is applied in the form of base fertilizer
Enter, calcium superphosphate is disposably applied by the way of base manure；Remaining 2/3 urea and 3/4 potassium sulfate in the April the first tenday period of a month chasing after
The form of fertilizer is applied.
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