CN115868338A - Method for improving yield and crude protein content of grassland of Chinese wildrye - Google Patents
Method for improving yield and crude protein content of grassland of Chinese wildrye Download PDFInfo
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- CN115868338A CN115868338A CN202211462163.2A CN202211462163A CN115868338A CN 115868338 A CN115868338 A CN 115868338A CN 202211462163 A CN202211462163 A CN 202211462163A CN 115868338 A CN115868338 A CN 115868338A
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- leymus chinensis
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- 235000019750 Crude protein Nutrition 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 18
- 235000016164 Elymus triticoides Nutrition 0.000 title claims description 15
- 241000511731 Leymus Species 0.000 title claims description 15
- 241000511730 Leymus chinensis Species 0.000 claims abstract description 29
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 15
- 241001494479 Pecora Species 0.000 claims abstract description 5
- 230000005070 ripening Effects 0.000 claims description 14
- 210000005069 ears Anatomy 0.000 claims 1
- 235000015097 nutrients Nutrition 0.000 abstract description 9
- 230000004720 fertilization Effects 0.000 abstract description 7
- 230000009105 vegetative growth Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000003973 irrigation Methods 0.000 abstract description 5
- 230000002262 irrigation Effects 0.000 abstract description 5
- 230000012010 growth Effects 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000004459 forage Substances 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 241000894007 species Species 0.000 description 4
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000243 photosynthetic effect Effects 0.000 description 3
- 230000014639 sexual reproduction Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000234642 Festuca Species 0.000 description 1
- 235000010624 Medicago sativa Nutrition 0.000 description 1
- 240000007298 Megathyrsus maximus Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 235000019629 palatability Nutrition 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000033458 reproduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
A method for improving the yield and the crude protein content of a grassland of a sheep grass relates to a method for improving the yield and the crude protein content of the grassland of the sheep grass. The invention aims to solve the technical problem that the environment is negatively influenced while the yield and the crude protein content of the forage grass on the grassland of the leymus chinensis are improved by fertilizing and irrigating at present. The invention utilizes the growth characteristics of the leymus chinensis, removes the spikes of the leymus chinensis at the early stage of wax ripeness, breaks through the balance relation between reproduction and vegetative growth, and enables more nutrients and energy absorbed by the leaves and roots of the leymus chinensis to be put into the vegetative growth, thereby improving the yield and crude protein content of the leymus chinensis grassland pasture. The invention does not need to be applied to grasslands and irrigate, thereby greatly saving manpower, material resources and financial resources; in addition, the method of the invention does not have the problems of environmental deterioration and the like caused by long-term fertilization and irrigation, and the method of the invention better meets the sustainable development target of low carbon and environmental protection.
Description
Technical Field
The invention relates to a method for improving the yield and crude protein content of grassland pasture.
Background
The leymus chinensis, also called Alkalimeria, is an important colony-building species and dominant species of the east end of the European continental grassland zone, and the biomass thereof accounts for more than 80 percent of the grassland vegetation communities in the area. The developed underground transverse rhizomes of the leymus chinensis can form a strong root net to play a role in preventing water and soil loss by fixing soil. Meanwhile, the leymus chinensis has strong saline-alkali resistance, cold resistance and drought resistance, and is an ideal indigenous species for controlling grassland deterioration. The protein content of the Chinese wildrye is high, the palatability is good, the Chinese wildrye is called as fine grain in pasture, and the Chinese wildrye is also good pasture for preparing hay. Due to the wide distribution and high productivity of the leymus chinensis, the yield and the quality of the leymus chinensis directly influence the development of the animal husbandry in northern China.
The leymus chinensis can form seeds for sexual reproduction and can also be propagated asexually through an underground bud bank. During sexual reproduction, the leymus chinensis needs a large amount of nitrogen and energy input no matter whether the female stamen and the pollen are formed or whether the fertilize is followed by grouting and fructification. The result will definitely separate the nutrients and energy used by the leymus chinensis for vegetative growth, namely, there is a trade-off relationship between sexual reproduction and vegetative growth. For the leymus chinensis grassland used for grass production, more nutrients and energy are put into the vegetative growth, and further, the yield and the quality of the grass are improved, so that the production effect of the leymus chinensis grassland is greater.
The crude protein content of pasture is one of the most important indexes of the quality of the pasture, and the previous researches on improving the yield and the crude protein content of the pasture are more focused on achieving the aim through fertilization, irrigation and the like. However, both fertilization and irrigation have side effects on the environment, which is not favorable for sustainable development. Overall, there are major problems that (1) fertilization of grasslands, particularly nitrogen fertilization, although improving grassland productivity for a short period of time, leads to a series of environmental problems such as soil hardening, loss of species diversity, and increase in nitrous oxide (greenhouse gas) emissions. In addition, energy is consumed in the fertilizer production process, and a large amount of carbon dioxide is generated. (2) Watering of grass causes the groundwater level to continuously drop, which has long led to the regions becoming more arid. Based on the situation, a method which can improve the yield and the crude protein content of the grassland of the leymus chinensis and is environment-friendly is urgently needed at present.
Disclosure of Invention
The invention provides a method for improving the yield and the crude protein content of grassland of sheep, aiming at solving the technical problem that the yield and the crude protein content of the grassland of sheep are improved by fertilization and irrigation at present and negative influence is generated on the environment.
The method for improving the yield and the crude protein content of the grassland of the leymus chinensis is carried out according to the following steps: removing all spikes of the Chinese wildrye in the early stage of the waxiness.
The principle of the invention is as follows:
the ear of the Chinese wildrye is also an important photosynthetic organ at the early stage of booting, heading, flowering and early stage of milk maturity, can carry out photosynthesis to accumulate nutrients, and the photosynthetic capacity of the ear is weakened or disappeared along with the arrival of the wax maturity period, but immature seeds still need the input of the nutrients, at the moment, the ear is changed from an original nutrient producer to a nutrient consumer, so that the removal of the ear of the Chinese wildrye at the early stage of wax maturity can enable the photosynthetic products of the leaf of the Chinese wildrye and the nutrients absorbed by the root system at the period to be more distributed to the growth of other aboveground organs except the ear, and finally the grassland yield and the crude protein content of the pasture are improved.
The invention has the advantages that:
the invention utilizes the growth characteristics of the leymus chinensis, removes the leymus chinensis spikes at the early stage of wax ripeness, breaks the balance relation between reproduction and vegetative growth, and enables more nutrients and energy absorbed by the leymus chinensis leaves and roots to be put into the vegetative growth, thereby improving the yield and crude protein content of the leymus chinensis grassland pasture.
The invention does not need to be applied to grasslands and irrigate, thereby greatly saving manpower, material resources and financial resources; in addition, the method of the invention does not have the problems of environmental deterioration and the like caused by long-term fertilization and irrigation, and the method of the invention better meets the sustainable development target of low carbon and environmental protection.
Detailed Description
The first specific implementation way is as follows: the embodiment is a method for improving the grass yield and the crude protein content of a Chinese wildrye grassland, which is specifically carried out according to the following steps: removing all spikes of the Chinese wildrye in the early stage of the waxiness.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the early stage of wax ripening is the first five days after the wax ripening begins. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the early stage of wax ripening is the third day after the wax ripening starts. The rest is the same as the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: all spikes were removed by scissors. The rest is the same as one of the first to third embodiments.
The fifth concrete implementation mode: the fourth difference between this embodiment and the specific embodiment is that: the leymus chinensis is planted on a natural leymus chinensis grassland or an artificial leymus chinensis grassland. The rest is the same as the fourth embodiment.
The invention was verified with the following tests:
test address: jilin pine and original city ChangLin county, jilin pine and grass land ecosystem state field surgery observation research station.
Test time: in 2021.
1. Selection of natural and artificial leymus chinensis grasslands
Respectively selecting experimental cells of 34m multiplied by 22m on natural and artificial Chinese wildrye grasslands with uniform growth vigor; the tassel removal is needed in 5 different phenological stages of the Chinese wildrye (early stage of booting, early stage of heading, early stage of flowering, early stage of milk maturity and early stage of wax maturity), and the comparison is carried out by adding no tassel removal treatment, wherein the total of 6 treatments are repeated for 4 times, so that 24 experimental sample plots of 4m multiplied by 4m are divided on a cell, each sample plot is spaced by 2m, and 4 rows and 6 columns are formed;
2. removing spikes of herba Leymi chinensis in different phenological stages
All spikes were removed in 4 corresponding plots (replicate test) in the early stage of heading (5 months 15 days, day 3 of heading), early stage of heading (6 months 1 days, day 3 of heading), early stage of flowering (6 months 15 days, day 3 of flowering), early stage of milk ripening (6 months 30 days, day 3 of milk ripening) and early stage of wax ripening (7 months 15 days, day 3 of wax ripening) of guinea grass, respectively, and the remaining 4 plots were left untreated as controls; all spikes were removed by scissors.
3. Grassland pasture yield and crude protein content determination under different treatments:
in the pasture harvesting period (8 months and 10 days), the overground part of vegetation (the sampling size is 1m multiplied by 0.1 m) is harvested on each sample land, the yield of the pasture per unit area is calculated by weighing after drying, and the crude protein content is determined after the dried sample is crushed.
The results show (see table 1): the yield of the natural grassland pasture reaches 2721kg hm under the early stage of the wax ripening of the Chinese wildrye and the ear removing treatment -2 Comparison with control group without spike (2609 kg hm) -2 ) Higher than 112Kg hm -2 (ii) a The crude protein content was 6.3%, which was 1.1% higher than the control without ear removal (5.2%).
The yield of the artificial grassland pasture after the ear is removed at the early stage of wax ripening reaches 4746Kg hm -2 Comparison with control group without spike (4444 kg hm) -2 ) Is higher than 302kg hm -2 (ii) a The crude protein content was 8.7%, which was 1.8% higher than the no-tasking control (6.9%).
TABLE 1 forage grass yield and crude protein content at different time spilt removal treatments of natural and artificial grasslands, fescue
Claims (5)
1. A method for improving the yield and the crude protein content of a grassland of sheep grass is characterized by comprising the following steps: removing all spikes of the Chinese wildrye in the early stage of the waxiness.
2. The method of claim 1 wherein the early stage of wax ripening is the first five days after the onset of the wax ripening.
3. The method of claim 1 wherein the early stage of wax ripening is the third day after the onset of the wax ripening.
4. The method of claim 1 wherein all ears are removed by scissors.
5. The method for improving the grass yield and crude protein content of the leymus chinensis grass land as claimed in claim 1, wherein the leymus chinensis grass is planted on natural leymus chinensis grass land or artificial leymus chinensis grass land.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211462163.2A CN115868338A (en) | 2022-11-21 | 2022-11-21 | Method for improving yield and crude protein content of grassland of Chinese wildrye |
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| CN202211462163.2A CN115868338A (en) | 2022-11-21 | 2022-11-21 | Method for improving yield and crude protein content of grassland of Chinese wildrye |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101390568A (en) * | 2008-10-30 | 2009-03-25 | 中国科学院东北地理与农业生态研究所 | Production method of corn straw feedstuff |
| CN103004391A (en) * | 2012-10-24 | 2013-04-03 | 中国科学院东北地理与农业生态研究所 | Method for improving Chinese wild rye biomass and seed yield of saline-alkali soil |
| CN103814751A (en) * | 2014-03-20 | 2014-05-28 | 中国药材公司 | Cultivation method for improving maturing rate and yield of liquorice seeds |
| CN106900341A (en) * | 2017-04-20 | 2017-06-30 | 中国科学院东北地理与农业生态研究所 | It is a kind of to reduce the method that sheep's hay heading promotes nutrient growth |
| CN107926429A (en) * | 2017-11-22 | 2018-04-20 | 中国科学院新疆生态与地理研究所 | Make the method for sugar grass between under a kind of arid biogeographic zone apricot |
-
2022
- 2022-11-21 CN CN202211462163.2A patent/CN115868338A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101390568A (en) * | 2008-10-30 | 2009-03-25 | 中国科学院东北地理与农业生态研究所 | Production method of corn straw feedstuff |
| CN103004391A (en) * | 2012-10-24 | 2013-04-03 | 中国科学院东北地理与农业生态研究所 | Method for improving Chinese wild rye biomass and seed yield of saline-alkali soil |
| CN103814751A (en) * | 2014-03-20 | 2014-05-28 | 中国药材公司 | Cultivation method for improving maturing rate and yield of liquorice seeds |
| CN106900341A (en) * | 2017-04-20 | 2017-06-30 | 中国科学院东北地理与农业生态研究所 | It is a kind of to reduce the method that sheep's hay heading promotes nutrient growth |
| CN107926429A (en) * | 2017-11-22 | 2018-04-20 | 中国科学院新疆生态与地理研究所 | Make the method for sugar grass between under a kind of arid biogeographic zone apricot |
Non-Patent Citations (1)
| Title |
|---|
| 赵春桥: "除穗与延长光照对柳枝稷生理及生产的影响", 《中国博士学位论文全文数据库 农业科技辑》, no. 7, 15 July 2015 (2015-07-15), pages 047 - 52 * |
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