CN107409704B - High-yield planting method for forage sorghum based on low-water cultivation land - Google Patents
High-yield planting method for forage sorghum based on low-water cultivation land Download PDFInfo
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- CN107409704B CN107409704B CN201710667264.6A CN201710667264A CN107409704B CN 107409704 B CN107409704 B CN 107409704B CN 201710667264 A CN201710667264 A CN 201710667264A CN 107409704 B CN107409704 B CN 107409704B
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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
- A01C21/005—Following a specific plan, e.g. pattern
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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
- 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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Abstract
The invention discloses a high-yield planting method of forage sorghum based on a low-water cultivation land, which comprises the following steps: selecting a arid and semi-arid area with annual rainfall of 300-500 mm, pretreating the land, paving water-retaining layers on the treated land at intervals, wherein the width of each water-retaining layer is 0.8-1.2 times of the interval width, the cross section of each water-retaining layer is trapezoidal, and performing conventional leaching on the water-retaining layers; step two, carrying out rotary tillage and fertilization on the water retention layer, carrying out film covering treatment on the water retention layer from top to bottom, punching holes on the film, and punching seepage holes at intervals on the water retention layer; sowing in a water-retaining layer, wherein 8000-9500 plants are sown per mu, the sowing depth is 2-4 cm, and 3-5 seeds are sown in each hole; step four, weeding operation is carried out 7 days before seedling emergence after sowing; fifthly, deep additional fertilization treatment is carried out in the jointing stage; step six, irrigating the plants in time according to the soil water content W in the water-retaining layer after the pull-out period; and seventhly, harvesting when the sorghum plants for feeding grow to 1.5-2 m, and leaving stubbles to be 3-5 cm.
Description
Technical Field
The invention relates to a method for cultivating forage sorghum, in particular to a high-yield cultivation method for the forage sorghum based on a low-water cultivation land.
Background
The sorghum annual herbaceous plant has the advantages of drought resistance, waterlogging tolerance, salt and alkali tolerance, easy cultivation, convenient utilization, wide adaptability and the like. The fresh grass yield is 2-3 times of that of the silage corn, the straw sugar content is high, the palatability is good, and the method is a high-quality forage grass resource.
The sweet sorghum stalks for feeding are rich in sugar, high in nutritive value and high in plant size, and are known as high-energy crops. The drought resistance is strong, the palatability is good, the feed conversion rate is high, the sweet and sour after silage is suitable, livestock generally like to eat, and the feed tests of dairy cows show that the yield of the silage fermented sweet sorghum is increased by 805 g compared with that of the common conventional feed, the concentrated feed is saved by 25 g per kg of fresh milk, and the feed is saved by 9.4%.
With the increasing severity of the world energy crisis and the problem of ecological environment deterioration, the development and utilization of biological energy is becoming more urgent. Fuel ethanol is a clean energy source with infinite closed cycle and is a permanent renewable energy source. As a raw material of fuel ethanol, sweet sorghum is listed as a first source of biological liquid fuel in ' Novek ' project of renewable energy development '; sweet sorghum is a variety of common grain sorghum, has the characteristics of drought resistance, waterlogging resistance, saline-alkali resistance, strong adaptability, high biological yield, high sugar content and the like, is a genuine high-efficiency plant, can produce 3.2L of alcohol by carbohydrate synthesized by one mu of sweet sorghum in 1 day, can only produce 1.0L of corn and 0.2L of wheat, and is 3.2 and 16 times of the sweet sorghum in corn and wheat, sweet sorghum is planted in marginal land, and then fuel ethanol is produced by sweet sorghum straws, which can be realized in Daqing of Heilongjiang province nowadays, namely a ten thousand mu of 'sweet sorghum' green energy production base which utilizes 50 ten thousand tons of ethanol produced by sweet sorghum straws presents the vitality of life in the economic areas of Hartaq industrial corridors.
The adverse land areas unfavorable for plant growth, such as arid deserts, gobi deserts and the like, account for about 20 percent of the national soil area of China, and under the adverse environmental conditions of drought, little rain, poor land, large day-night temperature difference and strong sunshine, few plants grow and the ecological environment is fragile, so that the adverse environmental conditions are unfavorable for long-term growth of plants.
According to statistics, the existing cultivated land area of Jilin province is 533.3 ten thousand per hm2Wherein the planting area of the sorghum is 10-13.3 ten thousand/hm2. The sorghum planting area accounts for about 2.2 percent of the total cultivated land area of the whole province, and is the fourth grain crop of Jilin province after corn, soybean and rice, and the average yield per unit is 5355kg/hm2Higher than the average domestic level; the annual output can reach 71.4 ten thousand tons, which accounts for 1/5 in China; because sorghum has the characteristics of drought resistance, barren resistance, waterlogging resistance, saline-alkali resistance, disease and insect pest resistance, strong stress resistance, good yield, wide application and the like, in recent years, sorghum planting has a growing trend, and particularly in areas such as the front guo, the long green, the Qian' an and the Zhenzi 361699 of white city in the middle and western pines of Jilin province, the variety is mainly in the early spring sowing period, but a high-yield planting method for feeding sorghum still needs to be solved in our province.
Disclosure of Invention
The invention designs and develops a high-yield planting method for feeding sorghum based on a low-water planting land, and aims to increase the yield of the feeding sorghum by reasonably and effectively carrying out water-retention planting and reasonably calculating the fertilizing amount, so that the yield is increased, and the yield increase range is higher than that of the traditional planting method.
The technical scheme provided by the invention is as follows:
a high-yield planting method of forage sorghum based on a low-water cultivation land comprises the following steps:
selecting a arid and semi-arid area with the annual rainfall of 300-500 mm, pretreating the land, paving water-retaining layers on the treated land at intervals, wherein the width of each water-retaining layer is 0.8-1.2 times of the interval width, the cross section of each water-retaining layer is trapezoidal, and carrying out conventional leaching on the water-retaining layers;
step two, carrying out rotary tillage and fertilization on the water retention layer, and punching holes on a film after the water retention layer is subjected to film covering treatment from top to bottom, wherein the water retention layer is perforated with water seepage holes at intervals; wherein the application amount of the base fertilizer is 2000-3000 kg of farmyard manure per mu, 15-18 kg of nitrogen fertilizer, 20-35 kg of phosphate fertilizer and 10-15 kg of potassium fertilizer;
sowing on the water-retaining layer, wherein 8000-9500 plants are sown per mu, the sowing depth is 2-4 cm, and 3-5 seeds are sown in each hole;
step four, weeding operation is carried out 7 days before seedling emergence after sowing;
fifthly, deep additional fertilization treatment is carried out in the jointing stage; wherein, according to plant production density rho, height of growth H, soil moisture RH in the water retaining layer, ambient temperature T effectively applys the volume of topdressing, including following fertilization volume:
wherein M is the mass of the originally applied farmyard manure, M' is the mass of the compound long-acting fertilizer deeply fertilized, M is the mass of the compound long-acting fertilizerNFor the initial applied nitrogen fertilizer mass, MPMass of phosphate fertilizer initially applied，MKFor the initial application of the potash fertilizer, MNQuality of nitrogenous fertilizer for deep topdressing, MP' quality of deep topdressing phosphate fertilizer, MK' is the quality of the potassium fertilizer for deep topdressing, H is the average height of the plant before deep topdressing treatment, rho is the average density of the plant before deep topdressing treatment, RH is the average humidity of the soil before deep topdressing treatment, T is the ambient temperature before deep topdressing treatment, H0The empirical ratio calculated for the amount of deep dressing is higher, rho0Empirical comparison of Density, RH, calculated for deep topdressing application0Empirical comparison of soil moisture, T, calculated for deep topdressing dosage0Comparing the experience calculated for the deep topdressing dosage with the ambient temperature;
step six, irrigating the plants in time according to the soil water content W in the water-retaining layer after the pull-out period;
seventhly, harvesting when the sorghum plants for feeding grow to 1.5-2 m, and leaving stubbles to be 3-5 cm;
after harvesting, removing the film on the water retaining layer where the original stubbles are located, keeping the original stubbles still, replacing the interval positions of the water retaining layers with the water retaining layers in the next year, and sowing on the basis.
Preferably, in the first step, the land pre-treatment comprises: after harvesting previous crops, keeping original roots on an original water-retaining layer still, performing strip cultivation on a spacing part between two rows of roots, ploughing for 20-30 cm to ensure that soil in a land is finely crushed and soft, airing for 30-50 days, after loosening and turning the land according to the requirements of plant root systems, screening the loosened soil into large gravel and fine sand soil by using a sieve with the aperture of 10-20 mm, paving the large gravel below the large gravel to form a gravel layer, and paving the fine sand soil above the gravel layer.
Preferably, in the planting process, when insect pests are found, 0.04% permethrin powder or 20% fenvalerate 1000-fold liquid is used for spray control, and the spraying is carried out for 1 time every 10-15 days, and the continuous control is carried out for 2-3 times.
Preferably, before sowing, the seeds are soaked in warm water at 18-25 ℃ for 3-6 hours, then aired by ventilation, and then soaked in the medicament for 12-15 hours, and aired by ventilation for 3-4 standby.
Preferably, the medicament is 25% triazolone wettable powder, 50% carboxin powder or 5% diniconazole.
Preferably, the herbicide is a butralin herbicide with the concentration of 300-400 g/mu.
Preferably, the rotary tillage fertilization depth is 10-15 cm.
Preferably, the seeds are selected from medium-early-maturing varieties with drought resistance and strong adaptability.
Preferably, the experience ratio calculated by the deep additional fertilizer dosage is higher than the height H01.8m, the empirical comparison density rho of the deep top dressing dosage calculation0Comparing the humidity RH of the soil by the experience of calculating the dosage of the deep additional fertilizer (8000 plants/mu)018%, the empirical comparison of the amount of said deep dressing used is the ambient temperature T0＝25℃。
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the mode of utilizing the water retention layer and adopting the minimal tillage, namely, only the middle part of two rows of stubbles is made into the water retention layer for planting each time, the original stubbles are kept unintelligible, the tillage of 50 percent of soil is reduced, the power consumption and the cost during the land preparation operation are greatly reduced, the traditional operation link for processing the stubbles is cancelled, the power consumption is reduced, 50 to 60 percent of land preparation cost is saved, the original whole period is also advanced, and the protective farming mode of minimal tillage, stubbles and partial returning to the field is realized;
2. through reasonable calculation of deep topdressing, the application amount of the fertilizer is reduced, the utilization rate of the fertilizer is improved, and the yield is effectively improved.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention with reference to the description.
The invention provides a high-yield planting method of forage sorghum based on a low-water cultivation land, which comprises the following steps:
selecting a arid and semi-arid area with the annual rainfall of 300-500 mm, pretreating the land, paving water-retaining layers on the treated land at intervals, wherein the width of each water-retaining layer is 0.8-1.2 times of the interval width, the cross section of each water-retaining layer is trapezoidal, and carrying out conventional leaching on the water-retaining layers;
step two, carrying out rotary tillage and fertilization on the water retention layer, carrying out film covering treatment on the water retention layer from top to bottom, punching holes on the film, and punching seepage holes at intervals on the water retention layer; wherein the application amount of the base fertilizer is 2000-3000 kg of farmyard manure per mu, 15-18 kg of nitrogen fertilizer, 20-35 kg of phosphate fertilizer and 10-15 kg of potassium fertilizer;
sowing in a water-retaining layer, wherein 8000-9500 plants are sown per mu, the sowing depth is 2-4 cm, and 3-5 seeds are sown in each hole;
step four, weeding operation is carried out 7 days before seedling emergence after sowing;
fifthly, deep additional fertilization treatment is carried out in the jointing stage; wherein, according to plant production density rho, the height of growth H, the soil moisture RH in the water-retaining layer, ambient temperature T carries out effective application to the volume of topdressing, including as follows the volume of fertilizing:
wherein M is the mass of the originally applied farmyard manure, M' is the mass of the compound long-acting fertilizer deeply fertilized, M is the mass of the compound long-acting fertilizerNFor the initial applied nitrogen fertilizer mass, MPFor the mass of phosphate initially applied, MKFor the initial application of the potash fertilizer, MNQuality of nitrogenous fertilizer for deep topdressing, MP' quality of deep topdressing phosphate fertilizer, MK' is the quality of the potassium fertilizer for deep topdressing, H is the average height of the plant before deep topdressing treatment, rho is the average density of the plant before deep topdressing treatment, RH is the average humidity of the soil before deep topdressing treatment, T is the ambient temperature before deep topdressing treatment, H0The empirical ratio calculated for the amount of deep dressing is higher, rho0Empirical comparison of Density, RH, calculated for deep topdressing application0Empirical comparison of soil moisture, T, calculated for deep topdressing dosage0The experience calculated for the amount of deep topdressing is compared with the ambient temperatureDegree, e is the base of the natural logarithm; in the embodiment, the empirical ratio of the deep topdressing dosage calculation is higher than the degree H0Empirical comparison density rho calculated for 1.8m deep topdressing dosage0Comparing the humidity RH of the soil by the experience of calculating the dosage of deep topdressing which is 8000 plants/mu018%, the environmental temperature T is compared by the experience of calculating the dosage of the deep additional fertilizer0＝25℃；
Step six, irrigating the plants in time according to the soil water content in the water-retaining layer after the jointing stage;
seventhly, harvesting when the sorghum plants for feeding grow to 1.5-2 m, and leaving stubbles to be 3-5 cm;
wherein, after the harvest is finished, the film on the original stubble water retaining layer is removed, the original stubble is kept still, the interval position of the water retaining layer is replaced by the water retaining layer in the next year, and then the seeding is carried out on the basis.
In another embodiment, in step one, the land pre-treatment comprises: after harvesting previous crops, keeping original roots on an original water-retaining layer still, performing strip cultivation on a spacing part between two rows of roots, ploughing for 20-30 cm to ensure that soil in a land is finely crushed and soft, airing for 30-50 days, after loosening and turning the land according to the requirements of plant root systems, screening the loosened soil into large gravel and fine sand soil by using a sieve with the aperture of 10-20 mm, paving the large gravel below the large gravel to form a gravel layer, and paving the fine sand soil above the gravel layer.
In another embodiment, in the planting process, when insect pests are found, 0.04% of closterin powder or 20% of fenvalerate 1000-fold liquid is used for spray control, and the spraying is carried out for 1 time every 10-15 days, and the continuous control is carried out for 2-3 times.
In another embodiment, before sowing, the seeds are soaked in warm water at 18-25 ℃ for 3-6 hours, then aired in a ventilating way, and then soaked in the agent for 12-15 hours, and aired in a ventilating way for 3-4 standby.
In another embodiment, the medicament is a 25% wettable powder of triadimefon, a 50% powder of carboxin or 5% diniconazole.
In another embodiment, the herbicide is 300-400 g/mu sec-butyl-tannin herbicide.
In another embodiment, the rotary tillage and fertilization depth is 10-15 cm.
In another embodiment, the seed is selected for a drought resistant and adaptable intermediate early maturing variety.
The invention is further illustrated by the following specific examples.
Example 1
Selecting Jilin province Pingyuan city front Guo county with annual rainfall of 430 mm-450 mm for planting, selecting a sorghum variety Jiza No. 140, harvesting in the first ten days of 9 months, deeply turning over the land, paving water-retaining layers at intervals, wherein the width of the water-retaining layers is 0.8 times of the interval width, carrying out rotary tillage fertilization on 18 days of 9 months, applying 2500kg of high-quality farmyard manure, 15kg of nitrogen fertilizer, 25kg of phosphate fertilizer, 15kg of potassium fertilizer, covering a water-retaining layer after 22 days of 9 months, drilling water seepage holes with the diameter of 12mm at intervals of 100cm in the interval layers after 20 days of 10 months, dibbling seeds in 10 days of the next year, carrying out wettability treatment on the seeds for 12 hours by 25% triazolone with the concentration of 5mg/L, airing and drying the ventilated part, sowing the seeds at the hole distance of 12cm, sowing 9430 holes per mu, sowing 3-5 seeds in each hole, and calculating the using amount of the deep additional fertilizer in the jointing stage for deep additional fertilizer application, harvesting when the sorghum plants grow to 1.5-2 m, and leaving stubbles of 3-5 cm.
The results show that: cumulative yield 9032kg/hm2The yield is 5952kg/hm compared with the traditional planting2The average yield is increased by 51.75 percent, and the average fresh grass yield per mu of the two treatments is at a very significant difference level.
Example 2
Selecting Jilin province pine city long-ridge county with annual rainfall of 450-500 mm for planting, selecting a sorghum variety Jiza No. 140, deeply turning over the land after harvesting in ten days in 9 months, paving water-retaining layers at intervals, wherein the width of the water-retaining layers is 1.2 times of the interval width, carrying out rotary tillage and fertilization in 20 days in 9 months, applying 2000kg of high-quality farmyard manure, 18kg of nitrogen fertilizer, 25kg of phosphate fertilizer, 15kg of potassium fertilizer in each mu, covering a water-retaining layer after 25 days in 9 months, drilling a water seepage hole with the diameter of 10mm in the interval layer every 80cm in 15 days in 10 months, dibbling seeds in 8 days in 5 months next year, carrying out wettability treatment on the seeds for 12 hours by 25% triazolone with the concentration of 5mg/L, airing and drying the ventilated part, sowing the seeds at 9423 holes per mu with the hole distance of 13cm, sowing 3-5 seeds in each hole, and calculating the using amount of the deep additional fertilizer in the jointing stage to carry out the deep additional fertilizer, harvesting when the sorghum plants grow to 1.5-2 m, and leaving stubbles for 3-5 cm.
The results show that: cumulative yield 9163kg/hm2The yield is 6235kg/hm compared with the traditional planting2The average yield is 46.96%, and the average fresh grass yield per mu of the two treatments is at a very significant difference level.
Example 3
Selecting land for planting in land Roughage village, pine and city land Roughage, land stabilization 361699, wherein the annual rainfall is 350-400 mm, selecting sorghum variety Jiza No. 140, deeply turning over the land after harvesting in the first ten days of 9 months, paving water-retaining layers at intervals, wherein the width of the water-retaining layers is 1 time of the interval width, carrying out rotary tillage fertilization in 22 days of 9 months, applying 3000kg of high-quality farmyard manure, 18kg of nitrogen fertilizer, 35kg of phosphate fertilizer, 15kg of potassium fertilizer in each mu, covering a water-retaining layer after 25 days of 9 months, punching water seepage holes with the diameter of 15mm in the interval layers every 75cm in 20 days of 10 months, dibbling seeds on 13 days of the next year, carrying out wettability treatment on the seeds for 12 hours by 25% triazolone of 5mg/L, drying in the air at the ventilated place, sowing with a hole distance of 10cm, sowing 9132 holes per mu, 3-5 seeds per hole, and calculating the using amount of the deep additional fertilizer in the jointing stage to carry out the deep additional fertilizer, harvesting when the sorghum plants grow to 1.5-2 m, and leaving stubbles for 3-5 cm.
The results show that: cumulative yield 8963kg/hm2Compared with the traditional planting, the yield 5636kg/hm2The average yield is increased by 59.03 percent, and the average fresh grass yield per mu of the two treatments is at a very significant difference level.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, and the invention is thus not limited to the specific details without departing from the generic concept defined in the claims and the equivalent scope.
Claims (9)
1. A high-yield planting method of forage sorghum based on a low-water cultivation land is characterized by comprising the following steps:
selecting a arid and semi-arid area with the annual rainfall of 300-500 mm, pretreating the land, paving water-retaining layers on the treated land at intervals, wherein the width of each water-retaining layer is 0.8-1.2 times of the interval width, the cross section of each water-retaining layer is trapezoidal, and carrying out conventional leaching on the water-retaining layers;
step two, carrying out rotary tillage and fertilization on the water retention layer, carrying out film covering treatment on the water retention layer from top to bottom, punching holes on a film, and punching seepage holes at intervals of the water retention layer; wherein the application amount of the base fertilizer is 2000-3000 kg of farmyard manure per mu, 15-18 kg of nitrogen fertilizer, 20-35 kg of phosphate fertilizer and 10-15 kg of potassium fertilizer;
sowing on the water-retaining layer, wherein 8000-9500 plants are sown per mu, the sowing depth is 2-4 cm, and 3-5 seeds are sown in each hole;
step four, weeding operation is carried out 7 days before seedling emergence after sowing;
fifthly, deep additional fertilization treatment is carried out in the jointing stage; wherein, according to plant production density rho, height of growth H, soil moisture RH in the water retaining layer, ambient temperature T effectively applys the volume of topdressing, including following fertilization volume:
wherein M is the mass of the originally applied farmyard manure, M' is the mass of the compound long-acting fertilizer deeply fertilized, M is the mass of the compound long-acting fertilizerNFor the initial applied nitrogen fertilizer mass, MPFor the mass of phosphate initially applied, MKFor the mass of potash fertilizer initially applied, MN' quality of nitrogenous fertilizer for deep topdressing, MP' quality of deep topdressing phosphate fertilizer, MK' is the quality of the potassium fertilizer for deep topdressing, H is the average height of the plant before deep topdressing treatment, rho is the average density of the plant before deep topdressing treatment, RH is the average humidity of the soil before deep topdressing treatment, T is the ambient temperature before deep topdressing treatment, H is the average temperature of the soil after deep topdressing treatment, and H is the average temperature of the soil after the soil is not subjected to the soil0The empirical ratio calculated for the amount of deep dressing is higher, rho0Empirical comparison of Density, RH, calculated for deep topdressing application0Empirical comparison of soil moisture, T, calculated for deep topdressing dosage0Comparing the environmental temperature for the experience calculated for the deep topdressing amount;
step six, irrigating the plants in time according to the soil water content W in the water-retaining layer after the pull-out period;
seventhly, harvesting when the sorghum plants for feeding grow to 1.5-2 m, and leaving stubbles to be 3-5 cm;
after harvesting, removing the film on the water retaining layer where the original stubbles are, keeping the original stubbles still, replacing the interval positions of the water retaining layer with the water retaining layer in the next year, and sowing on the basis.
2. The high-yield sorghum planting method for feeding based on water-poor cultivation land as claimed in claim 1, wherein in the step one, the land pretreatment comprises: after harvesting previous crops, keeping original roots on an original water-retaining layer still, performing strip cultivation on a spacing part between two rows of roots, ploughing for 20-30 cm to ensure that soil in a land is finely crushed and soft, airing for 30-50 days, after loosening and turning the land according to the requirements of plant root systems, screening the loosened soil into large gravel and fine sand soil by using a sieve with the aperture of 10-20 mm, paving the large gravel below the large gravel to form a gravel layer, and paving the fine sand soil above the gravel layer.
3. The high-yield planting method of the forage sorghum according to claim 1 or 2, wherein in the planting process, when insect pests are found, 0.04% permethrin powder or 20% fenvalerate 1000-fold liquid is used for spraying control, and the high-yield planting method is used for continuously controlling for 2-3 times after being sprayed for 1 time every 10-15 days.
4. The high-yield planting method of forage sorghum according to claim 3, wherein the seeds are soaked in warm water at 18-25 ℃ for 3-6 hours before sowing, then aired in the air, and then soaked in the chemical for 12-15 hours before airing for later use.
5. The method for high yield planting of forage sorghum based on hydroponic areas with little water according to claim 4, wherein the agent is 25% wettable triadimefon powder, 50% carboxin powder or 5% diniconazole.
6. The high-yield planting method of forage sorghum based on water-deficient cultivated land as claimed in claim 5, wherein the herbicide is butralin herbicide with the concentration of 300-400 g/mu.
7. The high-yield planting method of forage sorghum according to any one of claims 1, 2 and 4 to 6, wherein the depth of the rotary tillage fertilization is 10-15 cm.
8. The high-yield sorghum planting method for feeding based on water-deficient cultivation land according to claim 7, characterized in that the seeds are selected from drought-resistant and adaptable middle-early-maturing varieties.
9. The high-yield planting method of forage sorghum based on water-deficient cultivation land as claimed in claim 8, wherein the experience ratio of the calculation of the amount of deep topdressing is higher than H01.8m, the empirical comparison density rho of the deep top dressing dosage calculation0Comparing the humidity RH of the soil by the experience of calculating the dosage of the deep additional fertilizer (8000 plants/mu)018%, the empirical comparison of the amount of said deep dressing used is the ambient temperature T0＝25℃。
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| CN104705043A (en) * | 2014-11-12 | 2015-06-17 | 重庆茂升林业开发有限公司 | Sorghum planting method |
| CN104541886A (en) * | 2015-01-07 | 2015-04-29 | 重庆凯安瑞粮食专业合作社 | Planting method of sorghum |
| CN104620823B (en) * | 2015-02-09 | 2017-01-18 | 陇西永顺农牧发展有限公司 | Method for high-yield cultivation of feed sweet sorghum in dry farming mountain land |
| CN106134681A (en) * | 2015-04-03 | 2016-11-23 | 湖南糯高粱农业科技发展有限公司 | A kind of Chinese sorghum cultural method |
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