Positive and re-broadcast corn cultivation management technology calendar in Aksu area

Friends from Xinjiang can see it. The following small series is for everyone to organize the monthly and re-broadcast corn cultivation management technology calendar in the Aksu area in 2018. Friends who have grown corn at home can take a look.

Orthodox corn cultivation management calendar

March

First, the work objectives: do a good job in preparation before planting.

Second, the work content:

1. Selection of land: Select soil fertility, high quality, high organic matter content, wheat, melon and green manure are good.

2. Prepare seeds: Select hybrid corn varieties that are suitable for dense planting, strong resistance to disease, high resistance to fertilizer, anti-fertilization, late premature aging, high productivity per plant, and good quality. For example, Xinyu No. 31, SC704, etc. A seed quality standard of more than six grades with a purity of more than 96%, a purity of 98% or more, a germination rate of 85% or more, and a water content of not more than 14%.

April

I. Work Objectives: Do a good job of planting as the core of the work, and strive to achieve a full seedling.

Second, the work content:

1. Apply sufficient base fertilizer: base application of high quality farmyard manure 2000kg, urea 15kg～20kg, diammonium phosphate 25kg～30kg, potassium sulfate 3kg～5kg, zinc sulfate 1-2kg.

2. Plowing the land and preparing the land: On the basis of applying the base fertilizer, the large-horsepower working machine is used. After the ploughing, the ploughing depth is 25~30cm and the depth is 12~15cm, which is “chi, flat, loose, broken and clean”. "墒" six-character standard, to achieve the upper Panasonic, no leakage of ploughing, no overhead ridges and so on.

3. Soil treatment: Before sowing, choose 33% “Xicamperate” emulsifiable concentrate, according to the dosage of 200～250ml per mu or 50% “acetochlor” emulsifiable concentrate, according to the dosage of 125～150ml per mu. 40kg of water, evenly sprayed, shallowly closed the soil to prevent grassy weeds, crabgrass, foxtail, goosegrass, bluegrass and other grassy weeds and gray-green crickets and other small-leaf weeds.

4. Seed treatment: choose sunny day before planting, 1-2 days for sun-breeding, increase germination rate and germination potential; underground pests in seedling stage are harmful to the plot, 75% phoxim can be used, according to the ratio of 1:1000 Seed dressing is carried out to prevent it.

5. Timely sowing: When the temperature of 5cm is stable and 10°C, it should be started at the appropriate time; the best sowing period is generally from early April to mid-April.

6. Configuration: use 145 cm wide film, according to [(30+50+30)+60)]×30cm line spacing configuration, 1 film 4 rows for sowing, the theoretical seeding density is 5200 to 5600 points, and the number of seedlings is 4,500 to 5000. Strain.

7. Seeding quantity and sowing quality: The seeding amount per acre is 2.5~3kg, 2~3 pieces per hole, and 1.5~2cm covering soil. The sowing depth is 3~4cm, which meets the requirements of straightness, uniform seed, no heavy, no depth, and uniform soil coverage. It guarantees a full seedling and the porosity is less than 3%.

May

First, the work objectives: timely seedlings, cultivating and weeding, topdressing and fertilizer irrigation, to ensure that the seedling period is stable, the formation of strong seedlings.

Second, the work content:

1. Check seedlings to replant: 6 to 8 days after sowing, check the emergence of seedlings in time. If there is a knot, lack of seedlings and ridges, timely remove the soil compaction and replant, the seedling rate is over 95%.

2. Dingling: In the corn seedlings, the leaves are one heart to three leaves and one heart stage. When setting up seedlings, it is required to stay big and go small, stay strong and weak, stay in health and stay away from the disease. One hole per hole, leaving no double plants to ensure the uniformity of the field.

3. Intercropping and weeding: During the seedling stage, we should carry out two times of cultivating around temperature increase and protection, improvement of soil permeability, elimination and suppression of inter-membrane weeds, and seedling growth. After the seedlings are fixed, the first cultivating is carried out in time, and the depth of ploughing is 6-8 cm; the second cultivating is carried out 15 days after the first cultivating, and the ploughing depth is 10-12 cm; when the seedlings enter the four-leaf stage, the roots are removed several times in advance. Fork and surrounding weeds to reduce the inefficient consumption of fertilizers and nutrients.

4. Uncovering the film and trenching and topdressing: After the jointing, the film should be uncovered in time, and the corn cultivator or artificial ditch should be used to chase the small trumpet fertilizer. Specifically, according to 20~25kg urea/mu, it is applied deep under the 15cm ditch and compacted with soil. After 2 to 3 days, the head water should be poured at the right time. The water volume is 60-70 m3/mu, and the drowning surface is 8-10 cm. It is required to fill the head water.

5. Prevention and control of pests and diseases in seedling stage: harm to tigers in seedling stage, before the seedlings, the use of enemies to kill pyrethroid pesticides, according to the amount of 20 ~ 30ml per mu, 40kg of water, even spray control; prevention of corn Tumor smut can be sprayed 1 or 2 times with 1 g of a combination of foliar fertilizer per acre.

June

First, the work objectives: timely fill fertilizer and irrigation, eliminate weeds, do a good job of pest control, to ensure the growth of vegetative body.

Second, the work content:

1. Spike fertilizer: large bell mouth period (before the second water filling), generally 30-40 kg of corn formula fertilizer per acre or 20-23 kg of urea, 4-6 kg of diammonium, 6-8 kg of potassium sulfate. In order to promote the ear and large grains.

2. Irrigation: After 8 to 12 days of head water, the second water is poured in time, and the water volume is 25-30 m3/mu.

3. Insect pest control: For the damage of corn borer, it can be treated by light trapping, Bt emulsion with water mixed with fine sand filling or Bt emulsion with water spray; for corn leafhopper, 1.8% avermectin can be used. 20% lingzhi emulsifiable oil 1500 times liquid spray control, try to spray the liquid on the back of the corn leaves, re-send the field, even spray 2 to 3 times every 10 days, can achieve good results.

July to August

I. Work Objective: Do a good job of topdressing and fertilizing for the third time to ensure good development of the ear.

Second, the work content:

1. After the corn is swayed, the principle of keeping the soil moist is to maintain the continuity of the middle and late irrigation. Generally, 15 to 20 days after the second water, the third water is poured in time to facilitate the grouting. When the corn kernels become yellow and hard, and the lower leaves begin to dry (about August 15 to 20), water should be stopped at the right time.

2. External top dressing: corn large bell mouth period, 150g of potassium dihydrogen phosphate + 150g of urea + 50g of zinc sulfate per acre, sprayed with water foliar surface to supplement the nutrients needed for corn growth.

Mid-September

First, the work objectives: do a good job before the harvest period, timely harvest.

Second, the work content: spring sowing film corn will generally dehydrate and mature in mid-September, the leaves turn yellow, the grain becomes hard (when the water content is 15%) can be harvested, the corn cob should be spread, the grain water content is reduced When it is less than 14%, it is threshed into storage.

Re-broadcast corn cultivation management calendar

From early June to mid June

First, the work objectives: do a good job in preparation before planting.

Second, the work content: the selection of high-yield, high-quality, high-resistance, disease-resistant and high-resistance maize varieties adapted to the climatic conditions of each county (city), optional Xinyu No.9, Xinyu No.42, etc., timely sowing Fully harvested. Seeds are best seeded with seed coatings to control underground pests.

Late June

I. Work Objectives: Do a good job of planting as the core of the work, and strive to achieve a full seedling.

Second, the work content:

1. Apply sufficient base fertilizer: 2 tons of high-quality farmyard manure, 15-20 kg of urea and 25-30 kg of diammonium phosphate per acre.

2. Plowing the land and preparing the land: On the basis of applying the base fertilizer, the large-horsepower working machine is used. After the ploughing, the ploughing depth is 25~30cm and the depth is 12~15cm, which is “chi, flat, loose, broken and clean”. "墒" six-character standard, to achieve the upper Panasonic, no leakage of ploughing, no overhead ridges and so on.

3. Soil treatment: Before sowing, choose 33% “Xicamperate” emulsifiable concentrate, according to the dosage of 200～250ml per mu or 50% “acetochlor” emulsifiable concentrate, according to the dosage of 125～150ml per mu. 40kg of water, evenly sprayed, shallowly closed the soil to prevent grassy weeds, crabgrass, foxtail, goosegrass, bluegrass and other grassy weeds and gray-green crickets and other small-leaf weeds.

4. Seed treatment: choose sunny day before planting, 1-2 days for sun-breeding, increase germination rate and germination potential; underground pests in seedling stage are harmful to the plot, 75% phoxim can be used, according to the ratio of 1:1000 Seed dressing is carried out to prevent it.

5. Configuration: 145cm wide membrane, according to [(30+50+30)+60)]×24cm line spacing configuration, 1 membrane 4 rows for sowing, the theoretical seeding density is 6000 to 6500 points, and the number of seedlings is 5100 to 5500. .

6. Seeding quantity and sowing quality: The seeding amount per acre is 2.5~3kg, 2~3 pieces per hole, covering soil 1.5~2cm. The sowing depth is 3~4cm, which achieves the requirements of straightness, uniform seed, no heavy, no depth, and uniform soil coverage, ensuring a full seedling.

From early July to mid July

First, the work objectives: timely seedlings, cultivating and weeding, topdressing and fertilizer irrigation, to ensure that the seedling period is stable, the formation of strong seedlings.

Second, the work content:

1. Check seedlings to replant: 6 to 8 days after sowing, check the emergence of seedlings in time. If there is a knot, lack of seedlings and ridges, timely remove the soil compaction and replant, the seedling rate is over 95%.

2. Dingling: In the corn seedlings, the leaves are one heart to three leaves and one heart stage. When setting up seedlings, it is required to stay big and go small, stay strong and weak, stay in health and stay away from the disease. One hole per hole, leaving no double plants to ensure the uniformity of the field.

3. Intercropping and weeding: During the seedling stage, we should carry out two times of cultivating around temperature increase and protection, improvement of soil permeability, elimination and suppression of inter-membrane weeds, and seedling growth. After the seedlings are fixed, the first cultivating is carried out in time, and the depth of ploughing is 6-8 cm; the second cultivating is carried out 15 days after the first cultivating, and the ploughing depth is 10-12 cm; when the seedlings enter the four-leaf stage, the roots are removed several times in advance. Fork and surrounding weeds to reduce the inefficient consumption of fertilizers and nutrients.

4. Uncovering the film and trenching and topdressing: After the jointing, the film should be uncovered in time, and the corn cultivator or artificial ditch should be used to chase the small trumpet fertilizer. Specifically, according to 20kg ~ 25kg urea / acre, deep application in the 15cm ditch, and compacted with soil. After 2 to 3 days, the head water is poured at the right time. The water volume is 60m3 ~ 70m3 / mu, and the submerged surface is 8cm ~ 10cm. It is required to fill the head water.

5. Prevention and control of pests and diseases in seedling stage: harm to tigers in seedling stage, before the seedlings, the use of enemies to kill pyrethroid pesticides, according to the amount of 20 ~ 30ml per mu, 40kg of water, even spray control; prevention of corn Tumor smut can be sprayed 1 or 2 times with 1 g of a combination of foliar fertilizer per acre.

From late July to early August

I. Work Objective: Do a good job of topdressing and fertilizing to ensure good development of the ear.

Second, the work content:

1. Spike fertilizer: large bell mouth period (before the second water filling), generally 30-40 kg of corn formula fertilizer per acre or 20-23 kg of urea, 4-6 kg of diammonium, 6-8 kg of potassium sulfate. In order to promote the ear and large grains.

2. Irrigation: After 8 to 12 days of head water, the second water is poured in time, and the water volume is 25-30 m3/mu.

3. Insect pest control: For the damage of corn borer, it can be treated by light trapping, Bt emulsion with water mixed with fine sand filling or Bt emulsion with water spray; for corn leafhopper, 1.8% avermectin can be used. 20% lingzhi emulsifiable oil 1500 times liquid spray control, try to spray the liquid on the back of the corn leaves, re-send the field, even spray 2 to 3 times every 10 days, can achieve good results.

Mid-August to late August

First, the work objectives: do a good job in the management of water and fertilizer in the grain period, and increase the weight of thousands of grains.

Second, the work content:

1. After the corn is swayed, the principle of keeping the soil moist is to maintain the continuity of the middle and late irrigation. Generally, 15 to 20 days after the second water, the third water is poured as appropriate to facilitate the grouting.

2. External top dressing: corn large bell mouth period, 150g of potassium dihydrogen phosphate + 150g of urea + 50g of zinc sulfate per acre, sprayed with water foliar surface to supplement the nutrients needed for corn growth.

Mid-September to late September

First, the work goal: timely harvest.

Second, the work content: re-laying mulch corn will generally dehydrate and mature in the middle and late September, the è‹ž leaves turn yellow, the grain becomes hard (when the water content is 15%) can be harvested, the corn cob should be spread, the grain moisture content When it falls below 14%, it is threshed into storage.

The above is the full content of the monthly and re-broadcast corn cultivation management technology calendar in the Aksu area in 2018. Welcome the growers to come to Huinong.com!

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