CN106717798B - Method for cultivating forage grass with high yield and low cadmium - Google Patents
Method for cultivating forage grass with high yield and low cadmium Download PDFInfo
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- CN106717798B CN106717798B CN201611047189.5A CN201611047189A CN106717798B CN 106717798 B CN106717798 B CN 106717798B CN 201611047189 A CN201611047189 A CN 201611047189A CN 106717798 B CN106717798 B CN 106717798B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
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Abstract
The invention discloses a method for cultivating forage grass with high yield and low cadmium, which comprises the following steps: A. land selection and preparation: preparing soil by adopting a farmland ploughing machine, and manually ditching; B. planting forage grass: intercropping Guimu I and ryegrass, transplanting the Guimu I after the first year of seedling culture and propagation, and adopting stump retention and winter passing in the second season and later, and directly sowing the ryegrass; C. fertilizing ryegrass: ditching at a ryegrass planting position, applying lime in a strip manner to uniformly mix the lime with soil in a ditch; D. fertilizing Guimu No. I: digging a hole with the length, the width and the height, and applying lime to ensure that the lime and the soil in the ditch are uniformly stirred by a hoe; E. and (3) harvesting the forage grass: cutting ryegrass for the first time, and then cutting the ryegrass for leaving stubbles; and (4) cutting the Guimu No. I for the first time, and leaving stubbles. The method is easy to implement and simple and convenient to operate, the soil conditioner and the organic fertilizer are reasonably matched, the cadmium content of the pasture is reduced, the feeding safety of the pasture is improved, and meanwhile, the soil quality is optimized and improved.
Description
Technical Field
The invention belongs to the technical field of planting of high-yield low-cadmium forage grass, and particularly relates to a method for planting high-yield low-cadmium forage grass, which is a high-yield safe forage grass planting technology suitable for rotation of first Guizhou pasture/ryegrass in south acidic medium-light cadmium polluted soil (the total cadmium content in the soil is 0.3-0.9 mg/kg).
Background
The pasture is not only a feed, but also has good ecological protection and restoration functions. In recent years, pasture grass has been increasingly favored as a restoration plant for heavy metal contaminated soil because of its advantages of rapid growth, large biomass, and the like.
The ryegrass and Guimu No. I all have pioneer plant characteristics, are fast in growth and high in yield, can be mown and regenerated for multiple times, have strong resistance and accumulation effects on heavy metals, are commonly used for treating and repairing heavy metal contaminated soil, and play an extremely important role in the soil recycling process. Rotation of ryegrass and Guimu No. I and application of organic fertilizers are one of the most main production modes of southern pasture, but as the cadmium content of organic materials such as organic fertilizers and straw stalks is increased year by year, the excessive cadmium risk of the Guimu No. I and the ryegrass is gradually increased, and the food and physical and psychological health of people are further harmed by the progressive amplification of animal husbandry products through a food chain. Particularly, in recent years, heavy metal pollution incidents frequently occur, people pay more attention to the production of safe foods, and the quality safety of pasture, which is a source of quality safety control of livestock products, has attracted wide social attention, and the terms of "safe feed as safe food" and "feed safety as food safety" have become common knowledge in the world.
Therefore, the research on the forage grass cultivation technology and method with high yield and low cadmium is urgent and significant.
Disclosure of Invention
The invention aims to provide a method for planting forage grass with high yield and low cadmium, which is easy to implement and simple and convenient to operate, and reasonably matches a soil conditioner with an organic fertilizer under the cultivation condition of high-yield rotation of Guimu I and ryegrass, so that the cadmium content of the forage grass is reduced, the feeding safety of the forage grass is improved, and the quality of the soil is optimized and improved.
In order to achieve the purpose, the invention adopts the following technical measures:
a method for cultivating forage grass with high yield and low cadmium comprises the following steps:
A. land selection and preparation: selecting medium and light cadmium-polluted soil (the cadmium content in the soil is 0.3-0.9 mg/kg) with easy drainage and high fertility, preparing soil by adopting a small farmland tiller, and ditching by small machinery or manpower, wherein the width of a compartment surface is 1.4-1.6 m, the width of a ditch is 28-32 cm, the depth of the ditch is 25-30 cm, the number 2 rows (the plant distance is 50-70 cm) of osmanthus fragrans are planted in each compartment hole, and the number 3-4 rows (the seeding width is 10cm) of ryegrass are sowed in autumn and winter in a row.
B. Planting forage grass: intercropping or rotation planting is carried out between Guimu No. I and ryegrass, the Guimu No. I is transplanted after seedling raising and breeding of the stems in the first year, stumps can be remained for winter in the second season and later, and the ryegrass is directly sowed. The transplanting time of the Guimu No. one is 3 ten days to 5 ten days, the Guimu No. one is harvested from 9 ten days to 11 ten days, then furrows are respectively dug on two sides of the Guimu No. one and in the middle of two rows of the Guimu No. one in each compartment, and after fertilizing and covering soil, 1 row of ryegrass is planted on two sides of each compartment, and 1-2 rows of ryegrass are planted in the middle.
C. Fertilizing ryegrass: ditching 25-30 cm in the ryegrass planting position, and applying lime or red mud 600-900 kg/hm in strips2Uniformly mixing lime or red mud with the soil in the ditch, and applying 22500-30000 kg/hm of organic fertilizer 6-8 days later2And 450-750 kg/hm of compound fertilizer2And covering 3-5 cm of soil, sowing ryegrass, covering 1-2 cm of fine soil, and sprinkling water and keeping the soil moist for more than 10 days. Dressing 60-90 kg/hm of urea when the height of the seedlings is 10-20 cm in combination with the weather2After mowing, spraying 45-75 kg/hm of urea among ryegrass lines or watering the urea with water2。
D. Fertilizing Guimu No. I: digging holes with the length, width and height of 30-35 cm, and applying lime or red mud 600-900 kg/hm2Stirring lime or red mud and soil in the ditch uniformly by using a hoe, covering with 3-5 cm of fine soil, and applying 22500-30000 kg/hm of organic fertilizer after 7 days2And mixing with a compound fertilizer by 60-80 g/hole, covering fine soil by 10-15 cm, transplanting to Guimu I, and watering to thoroughly wet the soil. Applying 120-150 kg/hm of urea when the height of the seedlings is 30-40 cm2After mowing, carrying out hole application or watering with 45-75 kg/hm of urea2(ii) a After the stumps are cut for the last time after the stumps are left for winter, pig and cow dung and the like are added on the stumps for heat preservation, freeze prevention and weight increase, and a foundation is laid for improving the yield in the next year.
E. And (3) harvesting the forage grass: mowing the ryegrass for the first time when the ryegrass is 25cm high, and mowing the ryegrass for the later time when the ryegrass is 30-40 cm high, wherein the stubble is left for about 5 cm; and (3) carrying out first cutting when the height of the Guimu I is about 0.6-1 m to promote tillering of the Guimu I, and then carrying out cutting when the height of the Guimu I is 1.5-2 m, wherein the stubble is left for 10-15 cm. During the co-growth period of the ryegrass and Guimu I planting, the mowing speed is increased according to the situation, and the influence of the pasture in the front season on the growth of the pasture in the back season is reduced.
The organic fertilizer is decomposed by cow dung, chicken manure and pig manure, and has the organic matter content of 400-600 g/kg, the N content of 20-40 g/kg, and the P content2O5The content of K is 20-60 g/kg2The content of O is 20-60 g/kg.
The content of cadmium, lead, arsenic, mercury and chromium in the organic fertilizer is respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg;
the compound fertilizer can be purchased from the market, and the total nutrient content is N: P2O5:K2O＝15:15:15。
The content of cadmium, lead, arsenic, mercury and chromium in the compound fertilizer is respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg;
the urea is commercially available. The contents of cadmium, lead, arsenic, mercury and chromium in the urea are respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg;
compared with the prior art, the invention has the following advantages and effects:
1. by adopting the cultivation method, intercropping or crop rotation of ryegrass can be carried out in the idle season of the Guimu No. I in autumn and winter, so that the land utilization rate is improved, the coverage rate of the Guimu No. I and the ryegrass on soil is improved, the growth of weeds is reduced, the manual consumption of weeding is reduced, and the economic benefit is improved.
2. By adopting the cultivation technology, the pH value of the soil can be effectively improved, the acidity of the soil can be improved, the soil quality can be effectively improved by adopting the reasonable distribution of the passivator and the organic fertilizer, and meanwhile, the cadmium content of the pasture can be reduced, and the quality safety of the pasture can be ensured.
Drawings
FIG. 1 is a graph showing the comparison of the results of field demonstration for ryegrass production.
Total Lolium Perenne yield of 3737kg/hm for control treatment (CK)2The total yield of ryegrass using the method (T) is 4882kg/hm2And the yield is increased 30.63% compared with the control.
Fig. 2 is a graph showing the comparison effect of field demonstration of Guimu No. I yield.
Total yield of Guimu No. one of control treatment (CK) was 5040kg/hm2The total yield of ryegrass using the method (T) is 6599kg/hm2And the yield is increased by 30.93 percent compared with the control.
FIG. 3 is a graph showing the comparison of the effect of the cadmium content in ryegrass in a field demonstration.
The average cadmium content of the rye grass treated in the Control (CK) was 0.26mg/kg, while the total yield of the rye grass treated in the invention (T) was 0.19mg/kg, which is a 27.33% reduction over the control.
FIG. 4 is a graph showing the effect of comparing the cadmium content in Guimu No. one for field demonstration.
Average cadmium content of Guimu No. one of the control treatment (CK) was 0.18mg/kg, whereas total yield of Lolium perenne using the present invention (T) was 0.11mg/kg, which is 40.17% lower than the control.
Detailed Description
The present invention is further explained with reference to the following examples, which are not intended to limit the present invention in any way.
Example 1:
a method for cultivating forage grass with high yield and low cadmium comprises the following steps:
A. land selection and preparation: selecting medium and light cadmium-polluted soil (the total cadmium content of the soil is 0.3-0.9 mg/kg), which is easy to drain and has high fertility, preparing soil by using a small farmland tiller, ditching by using a small machine, wherein the width of a compartment surface is 1.4m, the width of the ditch is 30cm, the depth of the ditch is 30cm, planting cassia seeds in each compartment in a hole with the number of 2 rows (the plant spacing is 60cm), and sowing ryegrass in rows in autumn and winter with the number of 4 rows (the sowing width is 10 cm).
B. Planting forage grass: intercropping or rotation planting of Guimu I and ryegrass is carried out, transplanting is carried out after seedling raising and breeding of Guimu I, and the ryegrass is directly sowed. Digging holes at 40cm of the edge of the ditch in the last ten days of 4 months, transplanting Guimu No. one, planting Guimu No. 2 rows in each compartment, and planting distance 60 cm; and (3) ditching in the two sides of each compartment of Guimu No. one after harvesting Guimu No. one in the last ten days of 9 months and in the middle of the Guimu No. one, wherein the depth of the ditches is 30cm, the middle ditch is slightly wide, 1 row of ryegrass is directly sown after fertilizing and covering soil in the ditches at the two sides, 2 rows of ryegrass are planted after fertilizing and covering soil in the middle ditch, and the row spacing is 15 cm.
C. Fertilizing ryegrass: the depth of a ryegrass ditch is 30cm, lime or red mud is applied in strips for 50 kg/mu, the lime or red mud is uniformly mixed with soil in the ditch, fine soil with the depth of 3-5 cm is covered, and organic fertilizer 22500kg/hm is applied 7 days later2And 600kg/hm of compound fertilizer2And covering 3-5 cm of soil, sowing ryegrass, covering 1-2 cm of fine soil, and sprinkling water and keeping the soil moist for more than 10 days. Dressing 60kg/hm of urea when the height of the seedling is 10-20 cm2Spraying or watering 60kg/hm urea between ryegrass lines after cutting2。
D. Fertilizing Guimu No. I: digging holes with length, width and height of 30 or 33 or 35cm, and applying lime or red mud 750kg/hm2Uniformly mixing lime or red mud with the soil in the ditch, and applying organic fertilizer 30000kg/hm after 7 days2And 60g of compound fertilizer per hole, covering fine soil by 10 or 13 or 15cm, transplanting the osmanthus fragrans herd I, and watering to thoroughly wet the soil. Dressing urea 150kg/hm when the height of the seedling is 40cm2After mowing, carrying out hole application or watering with water for 75kg/hm of urea2(ii) a After the stumps are cut for the last time after the stumps are left for winter, the stumps are covered with pig manure, cow manure and the like for heat preservation, freeze prevention and weight increase, and a foundation is laid for improving the yield in the next year.
E. And (3) harvesting the forage grass: the first mowing is carried out when the ryegrass is 25cm high, and the mowing is carried out when the ryegrass is 30 or 35 or 40cm high later, and the stubble is left for about 5cm each time; the first cutting is carried out when the height of the Guimu No. I is about 0.6m so as to promote tillering of the Guimu No. I, and then the cutting can be carried out when the height of the Guimu No. I is 1.5 or 1.8 or 2m, and the stubble is left for 10 or 13 or 15 cm. During the planting and co-growing period of the ryegrass and the Guimu I in autumn and winter, the mowing speed is increased according to the situation, and the influence of pasture in the former season on the growth of pasture in the later season is reduced.
Experimental example 1:
the implementation time is as follows: 3 months-2014 5 months in 2013.
The implementation place is as follows: in a test base of Jinjinzhen county Changsha, Hunan province, the soil to be tested is the granite development sesame sand mud, the soil pH is 5.05, and the organic matter is 36.10 g.kg-1Total nitrogen 2.04 g.kg-10.54 g/kg of total phosphorus-1Total potassium 28.70 g.kg-1Basic nitrogen 150.00 mg/kg-1Quick-acting phosphorus 7.20 mg/kg-1Quick-acting potassium 67.02 mg/kg-1Total cadmium 0.32 mg/kg-1。
Test materials: guimu No. one and Haiwan ryegrass (provided by animal research institute in Hunan province)
And (3) experimental design: the test uses the application of chemical fertilizer (CK1) and the application of organic fertilizer (CK2) as contrast, and the cultivation technology treatment of low-cadmium high-yield pasture (Guimu I/ryegrass) is set (T1: lime + organic fertilizer; T2: red mud + organic fertilizer), the total treatment is 4, the repetition is 3 times, and the cell area is 40m2. Test removal treatment of specified fertilizersThe administration was different, and the rest were consistent.
Sampling and measuring method: in the test process, the Guimu No. 5 times and the Lolium perenne 4 times are harvested together, the weight of the fresh grass in each plot is measured in the field, 3 tillering plants are respectively taken from each plot of the Guimu No. one, the Lolium perenne is randomly taken from 1kg of the fresh grass in 5 holes with uniform growth vigor, and the cadmium content is measured after the drying and grinding.
And (4) analyzing results:
as can be seen from table 1, both myrtle one and ryegrass treated with T1 and T2 of the invention had significantly increased yield compared to fertilizer application. The total yield of the T1 and the T2 processed Guimu No. I and the ryegrass is respectively increased by 21.77% and 28.07% compared with CK1, wherein the yield of the T1 and the T2 processed Guimu No. I is respectively increased by 19.65% and 22.37% compared with CK1, and the yield of the ryegrass is respectively increased by 27.34% and 42.99%. However, the yields of both the T1 and T2 treated Guimu No. I and rye grass were not significantly different from the yield of CK2 treatment with organic fertilizer.
TABLE 1 fresh weight of pasture grass (t/hm) under different cultivation methods2) And the amplification (%)
Note: the different small letters in the same column in the table indicate significant differences between treatments, as follows.
As can be seen from table 2, both lolium and myrmec No. one treated with T1 and T2 of the present invention have significantly lower cadmium content than CK1 and CK2 treatments. The cadmium content of Guimu No. I treated by T1 and T2 is respectively reduced by 20.53 percent and 24.57 percent compared with CK1 and is respectively reduced by 18.17 percent and 22.33 percent compared with CK 2; the cadmium content of the ryegrass treated by T1 and T2 is respectively 16.12 percent and 21.17 percent lower than that of CK1 and 7.49 percent and 5.569 percent lower than that of CK 2.
TABLE 2 pasture grass cadmium content (mg/kg) and reduction in the content (%)
Note: the cadmium content of the ryegrass is the average content of 4 crops and the cadmium content of Guimu No. one is the average content of 5 crops by dry weight calculation.
As can be seen from table 3, the soil pH values for ryegrass and Guimu No. one growing season treated with T1 and T2 of the present invention were both significantly higher than the CK1 and CK2 treatments. The pH values of the soil treated by T1 and T2 in the Guimu No. one growing season are respectively improved by 0.54 unit and 0.43 unit compared with CK1 and are respectively improved by 0.66 unit and 0.55 unit compared with CK 2; the pH values of the soils treated by T1 and T2 in the ryegrass growing season were 0.50 and 0.35 units higher than CK1 and 0.51 and 0.36 units higher than CK2, respectively.
TABLE 3 soil pH and increment for different pasture growing seasons under different cultivation methods
Note: the soil pH measuring time for planting Guimu No. I is 24 days at 8 months in 2013, and the soil pH measuring time for planting Lolium perenne is 18 days at 3 months in 2014.
The results show that compared with the application of chemical fertilizers, the low-cadmium high-yield cultivation method for Guimu I/Lolium perenne increases the yield of Guimu I by more than 19.65%, the yield of Lolium perenne by more than 27.34% and the total yield by more than 21.77%; compared with the applied fertilizer, the cadmium content of Guimu No. I is reduced by more than 20.53 percent, and the cadmium content of ryegrass is reduced by more than 16.12 percent; compared with the application of organic fertilizer, the cadmium content of Guimu No. I is reduced by more than 18.17%, the cadmium content of ryegrass is reduced by more than 5.56%, and the pH value of the soil adopting the invention is obviously improved compared with that of the contrast and the single application of organic fertilizer. Therefore, the pasture planting method can obviously improve the pasture yield, obviously reduce the cadmium content of the pasture, improve the safe feeding property of the pasture, improve the pH value of the soil and reduce the soil acidification degree.
Experimental example 2:
the implementation time is as follows: 3 months in 2013 to 12 months in 2015.
The implementation place is as follows: in the test base of north mountain town of Changsha county of Hunan province, the soil to be tested is the sesame sand mud developed by granite, the pH of the soil is 4.89, and the organic matter31.05g·kg-1Total nitrogen 1.87 g.kg-10.94g kg of total phosphorus-1Total potassium 28.78 g.kg-1148.25 mg/kg of alkaline hydrolysis nitrogen-1Quick-acting phosphorus 10.28 mg/kg-1Quick-acting potassium 82.57 mg/kg-1Total cadmium 0.64 mg/kg-1。
Test materials: guimu No. one and Haiwan ryegrass (provided by animal research institute in Hunan province)
And (3) experimental design: in the test, fertilizer (CK1) is used as a control, the area is 10 mu, the low-cadmium high-yield pasture (Guimu I/ryegrass) cultivation technology (T: red mud + organic fertilizer) is set, and the demonstration area is 100 mu. The tests were conducted in the same manner except that the treatment was different for the indicated fertilizer application.
Sampling and measuring method: in the test process, 3 crops of Guimu No. I and Lolium perenne are randomly extracted respectively in 2014 and 2015 to determine the yield and the cadmium content.
And (4) analyzing results:
the yield result of the ryegrass (figure 1) shows that the yield of the ryegrass is increased by 30.63% compared with the control by adopting the ryegrass of the invention per crop on average; the yield result of Guimu I (figure 2) shows that the yield of Guimu I is increased by 30.94% per crop on average by adopting the Guimu I of the invention. The invention shows that the invention has obvious yield increasing effect on ryegrass and Guimu I.
The result of the cadmium content of the ryegrass shows (figure 3), the cadmium content of the ryegrass adopting the invention is reduced by 27.33 percent compared with the control on average; the result of cadmium content in Guimu I (figure 4) shows that the cadmium content in Guimu I is reduced by 40.17% compared with the control on average. The invention shows that the invention has obvious effect of reducing cadmium content for ryegrass and Guimu No. I.
Claims (4)
1. A method for cultivating forage grass with high yield and low cadmium comprises the following steps:
A. land selection and preparation: selecting medium and light cadmium-polluted soil with easy drainage, high fertility and 0.3-0.9 mg/kg of cadmium content in the soil, preparing soil by adopting a farmland ploughing machine, ditching by small machinery or manpower, wherein the width of a compartment surface is 1.4-1.6 m, the width of a ditch is 28-32 cm, the depth of the ditch is 25-30 cm, a number 2 of rows of osmanthus fragrans are planted in each compartment in a hole, the planting distance is 50-70 cm, and ryegrass is sowed in a row in autumn and winter by 3-4 rows;
B. planting forage grass: intercropping or crop rotation is carried out between Guimu No. I and ryegrass, the Guimu No. I is transplanted after seedling culture and propagation of first-year stems, stump retention and winter passing are adopted in the second season and later, the ryegrass is directly sown, the transplanting time of the Guimu No. I is 3 to 5 months upper ten days, the Guimu No. I is harvested from 9 months lower ten days to 11 months upper ten days, two sides of each Guimu No. I and the middle of two rows of Guimu No. I are respectively ditched, and after fertilization and soil covering, 1 row of ryegrass is planted on two sides of each Guimu No. box, and 1 to 2 rows of ryegrass are planted in the middle;
C. fertilizing ryegrass: ditching 25-30 cm in the ryegrass planting position, and applying lime or red mud 600-900 kg/hm in strips2Uniformly mixing lime or red mud with the soil in the ditch, and applying 22500-30000 kg/hm of organic fertilizer 6-8 days later2And 450-750 kg/hm of compound fertilizer2Sowing ryegrass after covering 3-5 cm of soil, covering 1-2 cm of fine soil, sprinkling water and keeping the soil wet for 10 days, and dressing 60-90 kg/hm of urea in combination with weather when the seedlings are 10-20 cm high2After mowing, spraying 45-75 kg/hm of urea among ryegrass lines or watering the urea with water2；
D. Fertilizing Guimu No. I: digging a hole with the length, width and height of 30-35 cm, and applying lime or red mud 600-900 kg/hm2Evenly stirring lime or red mud and soil in the ditch by using a hoe, covering with 3-5 cm of fine soil, and applying 22500-30000 kg/hm of organic fertilizer after 7 days2And 60-80 g/hole of compound fertilizer, covering fine soil for 10-15 cm, transplanting to Guimu I, watering to make the soil wet, and applying 120-150 kg/hm of urea when the seedling is 30-40 cm high2After mowing, carrying out hole application or watering with 45-75 kg/hm of urea2(ii) a After the stumps are cut for the last time after the stumps are left in winter, adding pig and cow dung on the stumps for keeping warm, preventing freezing and increasing the weight;
E. and (3) harvesting the forage grass: mowing the ryegrass for the first time when the ryegrass is 25cm high, and mowing the ryegrass for 5cm when the ryegrass is 30-40 cm high later; when the height of the Guimu I is 0.6-1 m, mowing for the first time, and when the height of the Guimu I is 1.5-2 m, mowing, and leaving stubbles for 10-15 cm;
the organic fertilizer is decomposed by cow dung, chicken manure and pig manure, and has the organic matter content of 400-600 g/kg, the N content of 20-40 g/kg, and the P content2O5The content of K is 20-60 g/kg2The content of O is 20-60 g/kg.
2. The method for cultivating forage grass with high yield and low cadmium as claimed in claim 1, wherein the method comprises the following steps: the contents of cadmium, lead, arsenic, mercury and chromium in the organic fertilizer are respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg.
3. The method for cultivating forage grass with high yield and low cadmium as claimed in claim 1, wherein the method comprises the following steps: the total nutrient content of the compound fertilizer is N: P2O5:K2O15: 15: 15; the contents of cadmium, lead, arsenic, mercury and chromium in the compound fertilizer are respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg.
4. The method for cultivating forage grass with high yield and low cadmium as claimed in claim 1, wherein the method comprises the following steps: the contents of cadmium, lead, arsenic, mercury and chromium in the urea are respectively not more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg and 50 mg/kg.
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| CN109174936B (en) * | 2018-09-28 | 2021-01-29 | 湖南农业大学 | Method for repairing cadmium-polluted farmland soil by using pasture and Guimu No. I |
| CN113228871B (en) * | 2021-05-14 | 2023-10-20 | 中国科学院亚热带农业生态研究所 | Method for constructing fertile plough layer by using Guimu first planting and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586270A (en) * | 2013-11-08 | 2014-02-19 | 中国科学院红壤生态实验站 | Method for restoring heavy metal contaminated soil |
| CN104115664A (en) * | 2014-08-11 | 2014-10-29 | 云南省农业科学院热区生态农业研究所 | Method for interplanting ecological pasture grasses and cotton trees |
| CN104541863A (en) * | 2014-12-23 | 2015-04-29 | 东北农业大学 | Protective farming and cultivating method |
| CN105027940A (en) * | 2015-08-20 | 2015-11-11 | 贵州师范大学 | Forage grass planting method for rocky desert area and use method thereof |
| CN106034683A (en) * | 2016-06-17 | 2016-10-26 | 广西横县兴云牧业有限公司 | Forage grass planting method |
| CN106105747A (en) * | 2016-08-01 | 2016-11-16 | 湖南德人牧业科技有限公司 | A kind of method of southern area hybridization grassiness catch cropping height Dormancy rating alfalfa |
-
2016
- 2016-11-22 CN CN201611047189.5A patent/CN106717798B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586270A (en) * | 2013-11-08 | 2014-02-19 | 中国科学院红壤生态实验站 | Method for restoring heavy metal contaminated soil |
| CN104115664A (en) * | 2014-08-11 | 2014-10-29 | 云南省农业科学院热区生态农业研究所 | Method for interplanting ecological pasture grasses and cotton trees |
| CN104541863A (en) * | 2014-12-23 | 2015-04-29 | 东北农业大学 | Protective farming and cultivating method |
| CN105027940A (en) * | 2015-08-20 | 2015-11-11 | 贵州师范大学 | Forage grass planting method for rocky desert area and use method thereof |
| CN106034683A (en) * | 2016-06-17 | 2016-10-26 | 广西横县兴云牧业有限公司 | Forage grass planting method |
| CN106105747A (en) * | 2016-08-01 | 2016-11-16 | 湖南德人牧业科技有限公司 | A kind of method of southern area hybridization grassiness catch cropping height Dormancy rating alfalfa |
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