CN109892186A - A kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase - Google Patents
A kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase Download PDFInfo
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- CN109892186A CN109892186A CN201910269920.6A CN201910269920A CN109892186A CN 109892186 A CN109892186 A CN 109892186A CN 201910269920 A CN201910269920 A CN 201910269920A CN 109892186 A CN109892186 A CN 109892186A
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Abstract
The invention discloses a kind of green manure for realizing double cropping of rice volume increase to mix returning to the field method, it is related to planting technical field, solves existing double cropping of rice plantation, green manure returning to the field is carried out by single cropping Chinese milk vetch, the problem of the Later growth performance nutrient supply deficiency of rice, its key points of the technical solution are that: the following steps are included: by leguminous green manure and nonleguminous green manure seed in (4-6): after 5 ratio mixing, in October with 18-27t/hm2Returning to the field amount uniformly sowed;In early rice growth period, leguminous green manure and nonleguminous green manure plant are turned over into returning to the field;In late rice growth period, early rice straw is turned over into returning to the field, there is the growth for double cropping of rice plant to provide sufficient nutrient, increases the double effect of double cropping of rice plantation yield, reduces the application of agriculture chemical amount, extends the effect in the plantation service life of paddy soil.
Description
Technical field
The present invention relates to planting technical fields, more specifically, it relates to a kind of green manure for realizing double cropping of rice volume increase
Mix returning to the field method.
Background technique
Double cropping of rice refers in same rice field, plants in 1 year and a kind of rice of two season of harvest rice makees system.By it
Planting type is different, and double season Cropping Rices can be divided into, make rice and mix up rice etc..With the raising of intensive agriculture degree, agriculture
Field application chemical fertilizer amount is continuously increased, and organic manure application rate is reduced rapidly.Long-term a large amount of application chemical fertilizer lead to soil hardening, granule knot
Structure is deteriorated, fertility decline, physicochemical character deterioration.
Currently, reducing for paddy fields in south china soil productivity, single green manure returning to the field is mainly used, such as: with Chinese milk vetch kind
It plants and carries out green manure returning to the field.Chinese milk vetch (Milk vetch, MV) belongs to pulse family Astragalus and gets over year raw herbaceous plant, it is solid to form symbiosis
Nitrogen systems are the important winter green nurse crops of paddy fields in south china, were once widely applied plantation in southern rice workspace, are China's weights
One of green manure crop wanted.Chinese milk vetch passes through the various nutrient elements such as phosphorus, the potassium in fixed air in nitrogen and soil, in Post flowering
Returning to the field is turned over, Straw decomposing Releasing nutrient can be improved soil fertility, and provide nutrition for paddy growth.
But by single cropping Chinese milk vetch, the Later growth performance nutrient supply of rice is insufficient.Therefore, how to design
A kind of green manure mixing returning to the field method that realizing double cropping of rice volume increase is our problems in the urgent need to address at present.
Summary of the invention
The object of the present invention is to provide a kind of green manure for realizing double cropping of rice volume increase to mix returning to the field method, has and plants for double cropping of rice
The growth of strain provides sufficient nutrient, increases the double effect of double cropping of rice plantation yield, reduces the application of agriculture chemical amount, extends rice
The effect in the plantation service life of field soil.
Above-mentioned technical purpose of the invention have the technical scheme that it is a kind of realize double cropping of rice volume increase
Green manure mixes returning to the field method, comprising the following steps:
S1: by leguminous green manure and nonleguminous green manure seed in (4-6): after 5 ratio mixing, in October with 18-27t/hm2
Returning to the field amount uniformly sowed;
S2: in early rice growth period, leguminous green manure and nonleguminous green manure plant are turned over into returning to the field;
S3: in late rice growth period, early rice straw is turned over into returning to the field.
The present invention is further arranged to: the leguminous green manure is Chinese milk vetch;The nonleguminous green manure is rape.
The present invention is further arranged to: the Chinese milk vetch and the mixed proportion of rape are 1:1, and the Chinese milk vetch and rape are mixed
Planting density after conjunction is 22.5t/hm2。
The present invention is further arranged to: the artificially applying fertilizer total amount is the 80% of local conventional fertilizer application amount.
The present invention is further arranged to: in the artificially applying fertilizer total amount, base manure, fetilizer for tillering, ear manuer are applied in the ratio of 5:3:2
With.
In conclusion the invention has the following advantages: passing through leguminous green manure, nonleguminous green manure and the mixing of early rice straw
Returning to the field, the growth for double cropping of rice plant provide sufficient nutrient, avoid the Later growth of rice from showing nutrient supply insufficient or not
Occur conducive to the case where rice early growth, increase the plantation yield of double cropping of rice, reduces the application of agriculture chemical amount, extend
The plantation service life of paddy soil.
Detailed description of the invention
Fig. 1 is the flow chart in the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing 1, invention is further described in detail.
Embodiment
To verify the winter Green manuring mode for effectively promoting paddy fields in south china soil fertility, fertilizer is selected in Xiangyin County, Hunan Province
Power level is medium, the convenient experimental plot of irrigation and drainage carries out long-term tillage field experiment.Using middle morning 39 and beautiful needle perfume (or spice) as early rice
With the experimental cultivar of late rice.Select leguminous green manure and each 2 kinds of nonleguminous green manure, leguminous green manure be Chinese milk vetch (Milk vetch,
MV) and common vetch (Vicia sativa, VS), nonleguminous green manure be rye grass (Ryegrass, RY) and rape (Rape,
RA)。
18 test blocks of setting are chosen, the area of each test block is 40m2.Random district's groups arrangement, 3 test blocks are one
A processing group, repetitive operation in the same processing group.18 experiments are distinguished into 6 processing groups, as shown in table 1:
The processing setting of table 1
Ridge separation is made in experiment section, and stays aisle and filling, gutter.Ridge requirement for height 30cm, and cover agricultural film, it is ensured that
Each test block singly fills, is single, testing section non-series-water.Early, late two seasons carry out in same experimental plot, keep test block arrangement not
Become, i.e., do not have to mechanical receipts when early rice manually harvests, using excavated by manual work or small-sized machine site preparation, avoid damage to test block ridge,
It is handled according to former experimental design and carries on late rice test.20% is reduced on the basis of local conventional fertilizer application amount as this test
Total dose, by base manure: fetilizer for tillering: ear manuer is 50%:30%:20% application.
To progress early rice in above-mentioned 18 test blocks and late rice plantation, and collect the production of early rice and late rice in respective handling group
The average value of amount and NPK nutrient content, and collection structure is analyzed.
The yield and structure of output of early rice are analyzed, as shown in table 2:
The yield and structure of output of 2 early rice of table
In each processing group, early rice yield is in MV+RA > VS+RY > MV+RY > MV > VS+RA > CK.Wherein, MV, MV+RY, MV+
RA and VS+RY processing yield is significantly higher than CK processing, and MV+RY, MV+RA and VS+RY processing yield are significantly higher than at MV and VS+RY
Reason, compared with the control, volume variance is not significant for VS+RA processing.MV, MV+RY and MV+RA processing grain number per spike be significantly higher than other three
A processing, wherein MV+RA processing grain number per spike is significantly higher than MV+RY processing.MV and MV+RA processing setting percentage is substantially less than VS+RY
Processing, and difference is not significant between the two.Rice effective panicles per unit area and mass of 1000 kernel are without significant difference between each processing.Separately
Outside, the harvest index of MV+RA processing is significantly higher than VS+RA processing, without significant difference between other processing.
Compared with the control, MV+RA processing early rice effect of increasing production is most obvious in five processing, volume increase 12.7%.VS+RA processing
Early rice effect of increasing production is unobvious, has increased production 1.0%.
The yield and structure of output of late rice are analyzed, as shown in table 3:
3 late rice yield of table and structure of output
The yield of CK processing is minimum in each processing late rice yield, other than handling no difference with MV, at other four
All there is significant difference in reason.Wherein, MV+RA and VS+RA processing yield is significantly higher than MV processing.The number of productive ear respectively handled is in MV
+ RY > MV > VS+RY > VS+RA > MV+RA > CK, wherein MV+RY processing is significantly higher than CK processing.At each processing grain number per spike MV+RY
Highest is managed, CK processing is minimum, wherein MV+RY and VS+RY is significantly higher than these three processing of MV+RA, VS+RA, CK.CK processing thousand
Grain weight is higher, and is significantly higher than MV+RY processing, and difference is not significant between other each processing, it is seen then that mass of 1000 kernel has unit area
Imitating spike number and grain number per spike difference has certain compensating action.Setting percentage no significant difference between each processing.The harvest of VS+RA processing
All there is significant difference with other five processing in index highest, the harvest index of VS+RY processing is minimum, substantially less than CK, MV,
MV+RA processing.
To sum up, the yield of early rice and late rice is all MV+RA processing highest, under equal conditions, MV+RA processing, that is,
Application Chinese milk vetch, rape and early rice straw incorporation can significantly improve early late rice yield.
The NPK nutrient content (g/kg) of early rice is analyzed, as shown in table 4:
Nitrogen content is without significant difference in the rice root that respectively handles, paddy, and VS+RY handles root and neutralizes nitrogen content in paddy most
It is high.Compared with CK, nitrogen content is without significant difference in each processing cauline leaf, but the nitrogen content of VS+RY processing cauline leaf is substantially less than MV+
RA processing.In root, cauline leaf, paddy, for the phosphorus content of six processing rice without significant difference, it is rice that the phosphorus content at each position, which is cashed,
Paddy > root > cauline leaf.Compared with CK, five green manure processing can improve the potassium content in root.Wherein, MV+RA is handled in rice root
Potassium content is significantly higher, in addition to MV+RY, is significantly higher than other four processing, compared with CK, MV, MV+RY, MV+RA, VS+RY, VS+RA
It is high by 72.4%, 40.2%, 25.0%, 40.2% and 40.2% respectively.The potassium content in stems and leaves of rice respectively handled is without significance difference
It is different.Potassium content in MV+RA processing Paddy rice is significantly higher than MV+RY and VS+RY two processing.
The NPK nutrient content (g/kg) of 4 early rice of table
Nitrogen content and CK in each processing rice root are handled without significant difference, and MV+RY processing root nitrogen content is significantly higher than VS+
RA processing, has reached 19.6%, is because MV+RY processing is to apply two kinds of leguminous green manures, and VS+RA application is that non-pulse family is green
Fertilizer;Cauline leaf nitrogen content handles highest with MV+RY, more significantly high by 23.4%, 22.8% than CK processing and MV+RA processing respectively;Respectively
Nitrogen content in paddy is without significant difference.The root that respectively handles, cauline leaf, paddy nitrogen content there is no apparent difference.
The NPK nutrient content (g/kg) of late rice is analyzed, as shown in table 5:
The NPK nutrient content (g/kg) of 5 late rice of table
Compared with early rice, late rice root, cauline leaf, the phosphorus content in paddy are remarkably decreased.Late rice maturity period potassium content is shown as
Cauline leaf > root > paddy, it is consistent with early rice.It respectively handles in rice root, the potassium content in paddy is without significant difference.In stems and leaves of rice,
CK handles potassium content highest, is significantly higher than VS+RY processing, is not significantly different between remaining each processing.
It is verified by 18 test blocks, it is seen then that gone back in conjunction with leguminous green manure, nonleguminous green manure and early rice straw
Field can significantly improve the yield and the intracorporal nutrient content of plant of rice.Wherein, by rape, Chinese milk vetch in 1:1 ratio
After mixing, in October with 22.5t/hm2The effect uniformly sowed of returning to the field amount it is preferable.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (5)
1. a kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase, it is characterized in that: the following steps are included:
S1: by leguminous green manure and nonleguminous green manure seed in (4-6): after 5 ratio mixing, in October with 18-27t/hm2Also
Field amount is uniformly sowed;
S2: in early rice growth period, leguminous green manure and nonleguminous green manure plant are turned over into returning to the field;
S3: in late rice growth period, early rice straw is turned over into returning to the field.
2. a kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase according to claim 1, it is characterized in that: the beans
Section's green manure is Chinese milk vetch;The nonleguminous green manure is rape.
3. a kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase according to claim 2, it is characterized in that: the purple
The mixed proportion of Yun Yingyu rape is 1:1, and the Chinese milk vetch and the mixed planting density of rape are 22.5t/hm2。
4. a kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase according to claim 1, it is characterized in that: the people
Work total fertilization amount is the 80% of local conventional fertilizer application amount.
5. a kind of green manure mixing returning to the field method for realizing double cropping of rice volume increase according to claim 4, it is characterized in that: described
In artificially applying fertilizer total amount, base manure, fetilizer for tillering, ear manuer are applied in the ratio of 5:3:2.
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CN104145618A (en) * | 2014-07-28 | 2014-11-19 | 中国农业大学 | Method for increasing yield of double cropping rice by turnover and fertilizer saving of Astragalus sinicus L. and straw in rice field |
CN106105930A (en) * | 2016-07-25 | 2016-11-16 | 江西农业大学 | The rice cultivating method of double season mechanization straw incorporations |
CN106688599A (en) * | 2017-02-03 | 2017-05-24 | 江西农业大学 | Double cropping rice and Chinese milk vetch matched planting method |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104145618A (en) * | 2014-07-28 | 2014-11-19 | 中国农业大学 | Method for increasing yield of double cropping rice by turnover and fertilizer saving of Astragalus sinicus L. and straw in rice field |
CN106105930A (en) * | 2016-07-25 | 2016-11-16 | 江西农业大学 | The rice cultivating method of double season mechanization straw incorporations |
CN106688599A (en) * | 2017-02-03 | 2017-05-24 | 江西农业大学 | Double cropping rice and Chinese milk vetch matched planting method |
Non-Patent Citations (2)
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