CN111528013A - High-yield cultivation method for relay intercropping of regenerated sorghum and potatoes - Google Patents
High-yield cultivation method for relay intercropping of regenerated sorghum and potatoes Download PDFInfo
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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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- 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
- 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 relay intercropping high-yield cultivation method for regenerated sorghum and potatoes, which comprises the following steps of: variety selection: selecting a sorghum variety and a potato variety; land preparation: sowing in wide and narrow rows; planting and field management: sowing first-season sorghum in the middle ten days of 3 months, culturing seedlings, transplanting, and performing pest control; applying organic compound fertilizer before harvesting the first-season sorghum, removing redundant seedlings when the first-season sorghum grows to 3 leaves, and performing pest control; after dressing seeds with the agent in the middle and last ten days of 9 months, the potatoes are sown, the soil is kept moist, and pest control is carried out; harvesting: harvesting the first-season sorghum when the first-season sorghum is ripe at 9, harvesting the regenerated sorghum in the last 11 months, and harvesting the potatoes in sunny days after all plants are frosted. The sorghum and potatoes are relay intercropping cultivation, the multiple cropping index of the sorghum field is improved by changing the traditional cultivation mode, the single production mode is changed, the economic benefit is improved, and the problems of low multiple cropping index of the land, single production mode, low relay intercropping yield and the like in the prior art are effectively solved.
Description
Technical Field
The invention relates to the technical field of sorghum relay intercropping, in particular to a high-yield cultivation method for relay intercropping of regenerated sorghum and potatoes.
Background
In recent years, the regenerated brewing sorghum in the south of the Sichuan is developed rapidly, the potato planting area is increased year by year, and the regenerated sorghum is harvested after being matured in the first season, and the characteristics of strong sprouting power of dormant buds on stem nodes of the sorghum are utilized, so that the base parts of the stem nodes are germinated, spiked and raised, and are matured and harvested through a series of cultivation and management measures. The regenerated sorghum can save seeds, labor and fertilizers, has short growth period and early maturity, is beneficial to winter planting, and is another way for promoting structure adjustment, increasing late-autumn crops and increasing income of farmers. However, the existing planting method has a single production mode, only one crop can be planted under most conditions, the land utilization rate is not high, and the limited land cannot be utilized to obtain greater economic benefit; and the corresponding fertilization can not be carried out according to the crop conditions during the planting, so that the crop relay cropping yield is not high, and the economic benefit is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-yield cultivation method for relay intercropping of regenerated sorghum and potatoes, which comprises the steps of relay intercropping and cultivating the sorghum and the potatoes, improving the multiple cropping index of a sorghum field by changing the traditional cultivation mode, changing a single production mode, improving economic benefits, and effectively solving the problems of low multiple cropping index of the field, single production mode, low relay intercropping yield and the like in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the method for relay intercropping high-yield cultivation of the regenerated sorghum and potatoes comprises the following steps:
(1) variety selection: selecting a hybrid glutinous sorghum variety; selecting a potato variety;
(2) land preparation: selecting sandy land, sowing in wide and narrow rows with the bandwidth of 1.2-1.4 m, planting double-row sorghum in the narrow rows, and planting potatoes in the wide rows; when sorghum is planted, the row nest distance is 40-50 cm multiplied by 30-45 cm, double plants are planted in nests, and the planting density is 5500-6000 plants/mu; when the potatoes are planted, the potatoes are opened at 80-90 cm, the depth of a furrow is 10-15 cm, the row distance is 30-40 cm, 20-25 cm, the potatoes are arranged in a single-ridge double-row triangular mode, and the planting density is 4000-5500 plants/mu;
(3) planting and field management: sowing first-season sorghum in the middle ten days of 3 months, raising seedlings and transplanting, applying farmyard manure to the land 20 days before transplanting, checking for lacking and supplementing seedlings after transplanting, performing shallow ploughing and loosening soil 7-9 days after final singling, wherein the ploughing depth is 4-5 cm, applying joint manure before raining in the jointing stage, and timely irrigating water in the flowering stage and the grouting stage to prevent and control diseases and pests;
applying 20-40 kg of compound microbial fertilizer (agricultural and beneficial plant growth in China) 10-15 d before harvesting the first-season sorghum, harvesting and reserving piles to obtain regenerated sorghum, adding manure and clear water for fertilization 7-8 d after seedling growth of the regenerated sorghum, removing redundant seedlings when the seedlings grow to 3 leaves, reserving 2-3 seedlings in each pit, and performing pest control;
sowing the potatoes after dressing the seeds with the agent in the middle and last ten days of 9 months, respectively fertilizing before sowing, during sowing and in the seedling stage of growing, applying a foliar fertilizer for 1-3 times in the tuber expansion period, keeping the soil moist, and performing pest control;
(4) harvesting: harvesting the first-season sorghum when the first-season sorghum is ripe at 9, harvesting the regenerated sorghum in the last 11 months, and harvesting the potatoes in sunny days after all plants are frosted.
Further, in the step (3), 1000kg of farmyard manure is applied per mu before transplanting, or 50kg of compound microbial fertilizer (farmyard vegetation in China) is applied per mu, 40kg of phosphate fertilizer, 10kg of potassium fertilizer and 20kg of urea.
Further, in the step (3), 5kg of nitrogenous fertilizer, 2.5kg of phosphate fertilizer and 5kg of potash fertilizer are applied to each mu of the fertilizer by adding manure and clear water for fertilization.
Further, in the step (3), the root peptide seed dressing agent, the talcum powder and the seed potato are uniformly mixed according to the mass ratio of 1:50:100 and then sown.
Further, in the step (3), 2000kg of decomposed animal manure or 300kg of organic fertilizer (NPK is more than or equal to 10 percent and organic matter is more than or equal to 45 percent) is applied to each mu before sowing, 50kg of compound fertilizer and 10kg of potassium sulfate are applied to each mu during sowing, and 10kg of urea is applied to each mu during the seedling stage of growing the seedlings.
Further, the foliar fertilizer is 0.5 wt% of monopotassium phosphate solution.
Further, in the step (3), when the first-season sorghum and the regenerated sorghum are subjected to pest control, continuously spraying 2-3 times with carbendazim at the initial stage of anthracnose and sheath blight occurrence; 1kg of bisultap macrogranular dessert with the weight percent of 5 percent is used per mu in the small trumpet mouth period and the final leaf period; the borer is prevented and treated by the double-spray insecticide and the emamectin benzoate or the high-efficiency cyhalothrin water aqua; the aphid is controlled by using the adjacent insect louse or the pirimicarb.
Further, in the step (3), the autumn potatoes are alternately sprayed with mancozeb, Kelu and Yinfui for preventing and treating early blight and late blight.
Further, when the first-season sorghum is harvested, the height of the harvested remained piles is 1 knot.
Furthermore, sorghum varieties are preferably selected from waxy red No. 1, waxy red No. 3 and waxy red No. 5; the potato is selected from No. 5 or No. 2 of virus-free fine variety.
In summary, the invention has the following advantages:
1. the sorghum and the potatoes are intercropped for cultivation, the regenerated sorghum is continuously cultivated after the first-season sorghum is harvested, meanwhile, the potatoes are interplanted, the multiple cropping index of a sorghum field is improved by changing the traditional cultivation mode, the single production mode is changed, two-season sorghum and one-season potato can be obtained in one year, the yield of the regenerated sorghum is slightly lower than that of the first-season sorghum, the overall yield of the two-season sorghum is higher, the intercropped potato yield is slightly lower than that of net cropping, the yield reduction degree is very limited, and the intercropped potato yield is still within a high yield range; the relay intercropping mode fully utilizes the growth time of crops and land resources, improves economic benefits, increases income for farmers, and effectively solves the problems of low land multiple cropping index, single production mode, low relay intercropping yield and the like in the prior art.
2. In the cultivation process, links such as variety selection, land preparation, planting, field management and harvesting are sequentially carried out, the relay intercropping method is simple, the planting cost is low, the management is convenient, the labor intensity of growers is greatly reduced, the return rate is high, sorghum and potatoes can be relay intercropped on a large scale, the popularization and the application are suitable, and the agricultural economic benefit is improved.
3. In the cultivation process of the first-season sorghum, the regenerated sorghum and the potatoes, various fertilizers with different amounts are applied according to different conditions of crops, so that the crops can fully grow, the crop yield is improved, the quality is better, and the economic benefit can be obtained to the maximum extent.
Detailed Description
Example 1
A relay intercropping high-yield cultivation method for regenerated sorghum and potatoes comprises the following steps:
(1) variety selection: selecting a high-quality hybrid glutinous sorghum variety 'Yinuhong No. 3' with short growth period, low plant height, high yield, good disease resistance, strong lodging resistance and strong regeneration capacity as a test material; selecting early-maturing high-yield high-quality variety potato No. 5 as autumn potato test material;
(2) land preparation: selecting sandy land with sufficient sunlight irradiation and good air permeability and water permeability, sowing in wide and narrow rows with the bandwidth of 1.2m, planting double-row sorghum in the narrow rows, and planting potatoes in the wide rows; when sorghum is planted, the row-pit distance is 40cm multiplied by 45cm, double plants are planted in pits, and the planting density is 5000 plants/mu; when the potatoes are planted, 80cm of boxes are opened, the depth of a ditch is 10cm, the row spacing is 30cm multiplied by 22cm, single ridges and double rows are arranged in a triangular mode, and the planting density is 5000 plants/mu;
(3) planting and field management: sowing first-season sorghum in the middle ten days of 3 months, raising seedlings and transplanting, applying 1000kg of farmyard manure per mu 20 days before transplanting, or applying 50kg of compound microbial fertilizer (China department, China;
applying 20kg of compound microbial fertilizer (agricultural and beneficial plant growth in China) 10d before harvesting sorghum in the first season, harvesting and reserving piles to obtain regenerated sorghum, applying 5kg of nitrogenous fertilizer, 2.5kg of phosphate fertilizer and 5kg of potash fertilizer to each mu of field sorghum in 7d of adding clear water and excrement clear water after germination of the regenerated sorghum, removing redundant seedlings when the field sorghum grows to 3 leaves, reserving 2 seedlings in each pit, and performing pest control; continuously spraying carbendazim for 2 times at the initial stage of anthracnose and sheath blight when first-season sorghum and regenerated sorghum are subjected to pest control; 1kg of bisultap macrogranular dessert with the weight percent of 5 percent is used per mu in the small trumpet mouth period and the final leaf period; the borer is prevented and treated by the double-spray insecticide and the emamectin benzoate or the high-efficiency cyhalothrin water aqua; using the adjacent insect louse or the pirimicarb to control aphids;
the method comprises the following steps of sowing potatoes after seed dressing with a medicament in the middle and last ten days of 9 months, uniformly mixing a root peptide seed dressing agent, talcum powder and seed potatoes according to the mass ratio of 1:50:100, applying 2000kg of decomposed stable manure or 300kg of organic fertilizer (NPK is more than or equal to 10% and organic matter is more than or equal to 45%) to each mu before sowing, applying 50kg of compound fertilizer and 10kg of potassium sulfate to each mu during sowing, applying 10kg of urea to each mu during a seedling growing period, applying 0.5 wt% of monopotassium phosphate liquid to each mu during a tuber expanding period for 1-3 times, keeping soil moist, and performing pest control; the autumn potatoes are alternately sprayed with mancozeb, Kelu and Yinfui to prevent and treat early blight and late blight;
(4) harvesting: harvesting sorghum in the first season when the sorghum is ripe at 9 days, wherein the height of a harvested pile is 1 node; regenerated sorghum was harvested in the late 11 th month, potatoes were harvested on a sunny day after all plants were frosted.
Example 2
A relay intercropping high-yield cultivation method for regenerated sorghum and potatoes comprises the following steps:
(1) variety selection: selecting a high-quality hybrid glutinous sorghum variety 'Yinuhong No. 3' with short growth period, low plant height, high yield, good disease resistance, strong lodging resistance and strong regeneration capacity as a test material; selecting early-maturing high-yield high-quality variety potato No. 5 as autumn potato test material; (ii) a
(2) Land preparation: selecting sandy land with sufficient sunlight irradiation and good air permeability and water permeability, sowing in wide and narrow rows with the bandwidth of 1.3m, planting double-row sorghum in the narrow rows, and planting potatoes in the wide rows; when sorghum is planted, the row-pit distance is 50cm multiplied by 41cm, double plants are planted in pits, and the planting density is 5000 plants/mu; when the potatoes are planted, 80cm of boxes are opened, the depth of a ditch is 10cm, the row spacing is 30cm multiplied by 22cm, single ridges and double rows are arranged in a triangular mode, and the planting density is 5000 plants/mu;
(3) planting and field management: sowing first-season sorghum in middle ten days of 3 months, raising seedlings and transplanting, applying 1000kg of farmyard manure per mu 20d before transplanting, or applying 50kg of compound microbial fertilizer (China department, China;
applying 30kg of compound microbial fertilizer (agricultural and beneficial plant growth in China) 13d before harvesting the first-season sorghum, harvesting and reserving piles to obtain regenerated sorghum, applying 5kg of nitrogenous fertilizer, 2.5kg of phosphate fertilizer and 5kg of potash fertilizer to each mu of field-grown 8d after sprouting of the regenerated sorghum, adding clear water and excrement, adding clear water and 5kg of potash fertilizer to each mu of field-grown 8d, removing redundant seedlings when the field-grown sorghum grows to 3 leaves, reserving 3 seedlings in each pit, and performing pest control; continuously spraying carbendazim for 3 times at the initial stage of anthracnose and sheath blight when first-season sorghum and regenerated sorghum are subjected to pest control; 1kg of bisultap macrogranular dessert with the weight percent of 5 percent is used per mu in the small trumpet mouth period and the final leaf period; the borer is prevented and treated by the double-spray insecticide and the emamectin benzoate or the high-efficiency cyhalothrin water aqua; using the adjacent insect louse or the pirimicarb to control aphids;
the method comprises the following steps of sowing potatoes after dressing seeds with a medicament in the middle and last ten days of 9 months, uniformly mixing a root peptide dressing agent, talcum powder and seed potatoes according to the mass ratio of 1:50:100, applying 2000kg of decomposed stable manure or 300kg of organic fertilizer (NPK is more than or equal to 10% and organic matter is more than or equal to 45%) to each mu before sowing, applying 50kg of compound fertilizer and 10kg of potassium sulfate to each mu during sowing, applying 10kg of urea to each mu during a seedling growing period, applying 0.5 wt% of monopotassium phosphate liquid to each mu during a tuber expanding period for 2 times, keeping soil moist, and performing pest control; the autumn potatoes are alternately sprayed with mancozeb, Kelu and Yinfui to prevent and treat early blight and late blight;
(4) harvesting: harvesting sorghum in the first season when the sorghum is ripe at 9 days, wherein the height of a harvested pile is 1 node; regenerated sorghum was harvested in the late 11 th month, potatoes were harvested on a sunny day after all plants were frosted.
Example 3
A relay intercropping high-yield cultivation method for regenerated sorghum and potatoes comprises the following steps:
(1) variety selection: selecting a high-quality hybrid glutinous sorghum variety 'Yinuhong No. 3' with short growth period, low plant height, high yield, good disease resistance, strong lodging resistance and strong regeneration capacity as a test material; selecting early-maturing high-yield high-quality variety potato No. 5 as autumn potato test material; (ii) a
(2) Land preparation: selecting sandy land with sufficient sunlight irradiation and good air permeability and water permeability, sowing in wide and narrow rows with the bandwidth of 1.4m, planting double-row sorghum in the narrow rows, and planting potatoes in the wide rows; when sorghum is planted, the row-pit distance is 50cm multiplied by 38cm, double plants are planted in pits, and the planting density is 5000 plants/mu; when the potatoes are planted, the potatoes are split by 90cm, the depth of a furrow is 15cm, the row spacing is 30cm multiplied by 22cm, the potatoes are arranged in a single-ridge double-row mode and are arranged in a triangular mode, and the planting density is 5000 plants/mu;
(3) planting and field management: sowing first-season sorghum in middle ten days of 3 months, raising seedlings and transplanting, applying 1000kg of farmyard manure per mu 20d before transplanting, or applying 50kg of compound microbial fertilizer (China department, China;
applying 40kg of compound microbial fertilizer (agricultural and beneficial plant growth in China) 15d before harvesting sorghum in the first season, harvesting and reserving piles to obtain regenerated sorghum, applying 5kg of nitrogenous fertilizer, 2.5kg of phosphate fertilizer and 5kg of potash fertilizer to each mu of field sorghum after 8d of adding clear water and adding clear water of excrement, when the field sorghum grows to 3 leaves, removing redundant seedlings, reserving 3 seedlings in each pit, and performing pest control; continuously spraying carbendazim for 3 times at the initial stage of anthracnose and sheath blight when first-season sorghum and regenerated sorghum are subjected to pest control; 1kg of bisultap macrogranular dessert with the weight percent of 5 percent is used per mu in the small trumpet mouth period and the final leaf period; the borer is prevented and treated by the double-spray insecticide and the emamectin benzoate or the high-efficiency cyhalothrin water aqua; using the adjacent insect louse or the pirimicarb to control aphids;
the method comprises the following steps of sowing potatoes after dressing seeds with a medicament in the middle and last ten days of 9 months, uniformly mixing a root peptide dressing agent, talcum powder and seed potatoes according to the mass ratio of 1:50:100, applying 2000kg of decomposed stable manure or 300kg of organic fertilizer (NPK is more than or equal to 10% and organic matter is more than or equal to 45%) to each mu before sowing, applying 50kg of compound fertilizer and 10kg of potassium sulfate to each mu during sowing, applying 10kg of urea to each mu during a seedling growing period, applying 0.5 wt% of monopotassium phosphate liquid to each mu during a tuber expanding period for 3 times, keeping soil moist, and performing pest control; the autumn potatoes are alternately sprayed with mancozeb, Kelu and Yinfui to prevent and treat early blight and late blight;
(4) harvesting: harvesting sorghum in the first season when the sorghum is ripe at 9 days, wherein the height of a harvested pile is 1 node; regenerated sorghum was harvested in the late 11 th month, potatoes were harvested on a sunny day after all plants were frosted.
Examples of the experiments
When the sorghum and the potatoes are simultaneously and cleanly planted in the planting method of the embodiment 1-3 under the same planting condition, the harvesting condition of the crops is counted after the crops are harvested, and the results are shown in tables 1-2.
TABLE 1 sorghum Harvest Condition statistics Table
TABLE 2 statistical table of harvesting conditions of potato crops
As can be seen from tables 1-2, the plant height, the ear length, the thousand kernel weight, the ear kernel weight and the yield of the first-season sorghum and the regenerated sorghum during the sorghum relay intercropping are not much different from those during the net cropping, and the yield reduction situation does not occur; meanwhile, the weight of each potato plant, the number of blocks of each potato plant, the number of big and small potatoes, the weight and the yield of the potatoes of the potato crops are all similar to those of the potato crops in the net cropping time. The sorghum and potato relay intercropping can harvest one-season potatoes, does not affect the yield of the sorghum and the potatoes, improves the land multiple cropping index, changes a single production mode, and improves the economic benefit.
While the present invention has been described in detail with reference to the specific embodiments thereof, it should not be construed as limited by the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (10)
1. A relay intercropping high-yield cultivation method for regenerated sorghum and potatoes is characterized by comprising the following steps:
(1) variety selection: selecting a hybrid glutinous sorghum variety; selecting a potato variety;
(2) land preparation: selecting sandy land, sowing in wide and narrow rows with the bandwidth of 1.2-1.4 m, planting double-row sorghum in the narrow rows, and planting potatoes in the wide rows; when sorghum is planted, the row nest distance is 40-50 cm multiplied by 30-45 cm, double plants are planted in nests, and the planting density is 5500-6000 plants/mu; when the potatoes are planted, the potatoes are opened at 80-90 cm, the depth of a furrow is 10-15 cm, the row distance is 30-40 cm, 20-25 cm, the potatoes are arranged in a single-ridge double-row triangular mode, and the planting density is 4000-5500 plants/mu;
(3) planting and field management: sowing first-season sorghum in the middle ten days of 3 months, raising seedlings and transplanting, applying farmyard manure to the land 20 days before transplanting, checking for lacking and supplementing seedlings after transplanting, performing shallow ploughing and loosening soil 7-9 days after final singling, wherein the ploughing depth is 4-5 cm, applying joint manure before raining in the jointing stage, and timely irrigating water in the flowering stage and the grouting stage to prevent and control diseases and pests;
applying 20-40 kg of compound microbial fertilizer 10-15 d per mu before harvesting sorghum in the first season, harvesting the harvested sorghum with remained piles, then applying regenerated sorghum with clear water and adding manure 7-8 d after seedling emergence of the regenerated sorghum, removing redundant seedlings when the seedlings grow to 3 leaves, and leaving 2-3 seedlings in each pit for pest control;
sowing the potatoes after dressing the seeds with the agent in the middle and last ten days of 9 months, respectively fertilizing before sowing, during sowing and in the seedling stage of growing, applying a foliar fertilizer for 1-3 times in the tuber expansion period, keeping the soil moist, and performing pest control;
(4) harvesting: harvesting the first-season sorghum when the first-season sorghum is ripe at 9, harvesting the regenerated sorghum in the last 11 months, and harvesting the potatoes in sunny days after all plants are frosted.
2. The relay intercropping high-yield cultivation method of regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), 1000kg of farmyard manure is applied per mu before transplanting, or 50kg of compound microbial fertilizer, 40kg of phosphate fertilizer, 10kg of potash fertilizer and 20kg of urea are applied per mu.
3. The relay intercropping high-yield cultivation method of regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), manure and clear water are added for fertilization, and 5kg of nitrogenous fertilizer, 2.5kg of phosphate fertilizer and 5kg of potash fertilizer are applied per mu.
4. The relay intercropping high-yield cultivation method of the regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), the root peptide seed dressing agent, the talcum powder and the seed potatoes are uniformly mixed according to the mass ratio of 1:50:100 and then sowed.
5. The relay intercropping high-yield cultivation method of regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), 2000kg of rotten manure or 300kg of organic fertilizer is applied to each mu before sowing, 50kg of compound fertilizer and 10kg of potassium sulfate are applied to each mu during sowing, and 10kg of urea is applied to each mu during the seedling stage of the seedlings.
6. The method for relay intercropping high-yield cultivation of regenerated sorghum and potatoes as claimed in claim 1, wherein the foliar fertilizer is 0.5 wt% monopotassium phosphate solution.
7. The relay intercropping high-yield cultivation method of the regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), when pest control is carried out on the first-season sorghum and the regenerated sorghum, carbendazim is continuously sprayed for 2-3 times at the initial stage of anthracnose and sheath blight occurrence; 1kg of bisultap macrogranular dessert with the weight percent of 5 percent is used per mu in the small trumpet mouth period and the final leaf period; the borer is prevented and treated by the double-spray insecticide and the emamectin benzoate or the high-efficiency cyhalothrin water aqua; the aphid is controlled by using the adjacent insect louse or the pirimicarb.
8. The relay intercropping high-yield cultivation method for regenerated sorghum and potatoes as claimed in claim 1, wherein in the step (3), mancozeb, kelu and Yinfui are alternately sprayed on autumn potatoes to prevent and control early blight and late blight.
9. The method for relay intercropping high yield of regenerated sorghum and potatoes as claimed in claim 1, wherein the height of the harvested stubble is 1 knot at the time of harvesting of first season sorghum.
10. The method for relay intercropping high yield cultivation of regenerated sorghum and potatoes as claimed in claim 1, wherein the sorghum varieties are selected from yinuohong No. 1, yinuohong No. 3, yinuohong No. 5; the potato is selected from No. 5 or No. 2 of virus-free fine variety.
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Inventor after: Zhang Deyin Inventor after: Du Yongli Inventor after: Zhou Junhui Inventor after: Liao Feifei Inventor after: Xiong Hu Inventor after: Yin Yong Inventor after: Zhang Lin Inventor after: Ying Heng Inventor before: Du Yongli |
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