Fertilizers and pesticides can increase the efficiency of use
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(1) Mixture of urea and washing powder. According to the use of 0.5 kg to 0.75 kg of urea per acre, 125 grams of washing powder, mixed with 50 kg to 60 kg of water, the leaves are sprayed on the crops to control various crops such as grain, cotton, vegetables and fruit trees. The pests such as aphids and spider mites are sprayed once every 7 to 8 days, and even sprayed 2 to 3 times. The control effect is over 90%, which can increase the yield of crops by about 10%. Because the washing powder contains sodium surfactant alkyl benzene sulfonate, it forms an air-impermeable, water-impermeable film on the surface of the worm after contact with the worm body, causing the suffocation of the insect.
(2) Leguo plus vinegar mixture. Use 40% dimethoate plus ordinary vinegar and water, mix and mix in a ratio of 1:1:1500 to make Lego vinegar, spray 60 kg per acre of leaves, and aphids on crops such as grain, cotton, vegetables, fruit trees, tobacco, etc. , red spider, thrips, vegetable leaf miner, wheat wheat leaf bee have a good effect. It saves 33% of pesticides and increases the insecticidal effect by 20% to 30%. Because the vinegar can soften the body wall of the pest, it enhances the penetration of the liquid and improves the insecticidal effect. At the same time, vinegar contains a variety of nutrients, which have a certain effect on crops.
(3) Mixture of urea and dichlorvos. 80 ml of 80% dichlorvos per acre, 0.5 kg of urea, 50 kg of water and mixed with foliar spray. It has a powerful and rapid killing effect on chewing mouthparts pests and sucking mouthparts pests on crops such as grain cotton, fruit trees, vegetables, tea, flowers and the like. Especially for pests such as locusts, red spiders, cabbage caterpillars, bridge-building insects, whitefly, and small heartworms, the control effect is over 95%. Spraying once every 7 days, even spraying 2 times to 3 times, can not only receive satisfactory control effects, but also increase crop yield by more than 10%. Because dichlorvos has phytotoxicity to sorghum, it cannot be used; melons and beans are sensitive to the drug, and the use should be cautious, and the dilution factor should be increased.
(4) Mixture of urea and dimethoate. 40% of Lego emulsifiable concentrate per acre, 0.5 kg of urea, 60 kg of clean water, and the effects of pests such as aphids, thrips, and leaf miners on crops such as grain, cotton, vegetables, fruit trees, and flowers are good. And has a significant increase in production. Because the residual effect period of Dimethoate is only 5 days to 6 days, the interval between the last spraying and the last spraying is 5 days.
(5) Mixture of trichlorfon and grass ash. 10 kg of hay ash used per acre, mixed with 50 kg of water and soaked for 24 hours, then take out the filtrate, add 80% trichlorfon 25 g, mix, and spray the grain, cotton, vegetables, fruit trees and other crops. It can control a variety of pests such as aphids, red spiders, cabbage caterpillars, bridge-building insects, armyworms, planthoppers, leafhoppers, etc., with good results. Spraying once every 7 days to 8 days, even spraying 3 times, can obtain satisfactory control effect, and can increase crop yield by more than 10%. Because trichlorfon is sensitive to crops such as sorghum, soybeans, corn and marshal apples, it is easy to produce phytotoxicity and should not be used.
(6) Mixture of nitrogen and phosphorus compound fertilizer and omethoate. Dissolve the diammonium phosphate in clear water and mix it to make a 1% concentration fertilizer solution, use 50-60 kg of fertilizer solution per acre, add 40% omethoate EC 20-30 ml, mix and spray on the foliar surface. Spray once every 7 days, even spraying 2 or 3 times, the control effect against red spider, aphid, thrips, cotton bollworm is more than 93%, and the crops such as grain, cotton and vegetables are increased by 7.6% to 9.5%. .
(7) Phosphate fertilizer dilution. According to the fear of phosphorus in the mites that are secreted by the cotton bolls when they are spawned, the chlorolic acid secreted by the cotton plants will be spawned and the phosphorus will escape. In the spawning period, 2% perphosphate leaching solution or potassium dihydrogen phosphate 300-400 is used. The liquid is sprayed on the top of the cotton plant, spraying 60 kg of diluted liquid per acre, 8-10 lines per spray, leaving 3 rows without spraying, driving the cotton bollworm to concentrate on the unsprayed cotton to lay eggs, and then use The effect of killing eggs and killing insects is 1000 times of spraying of omethophos, which means that it has twice the result with half the effort. At the same time, the sprayed phosphate fertilizer can chemically react with the oxalic acid secreted by the cotton plant to form calcium oxalate, and lose the ability to induce the cotton bollworm. Phosphate fertilizer can also harden the eggshell of the cotton bollworm, causing its larvae to suffocate without shelling. Phosphate fertilizer also prevents premature aging of cotton, reduces hair loss, increases boll weight, increases yield, and improves fiber quality.
In order to ensure the effect of spraying, it should be sprayed after 4 pm to no evening with no wind or dew. The droplets should be fine, and the spray should be thoughtful so that the front and back sides of the blade are filled with liquid. To strictly use the concentration and dosage, it should be used with the preparation to avoid phytotoxicity and fertilizer damage.
From:Shandong Agricultural Business Network