Pesticides and fertilizers can be used to increase efficiency
According to the requirements of crops and the occurrence of pests, pesticides and fertilizers can be scientifically formulated on the leaves. Not only can they effectively kill or suppress pests, they can also act as top dressings, promote crop growth and development, and increase yields. Because the use of medicinal fertilizers for a single use reduces the number of workers, reduces the use of drug-based fertilizers, and also helps to protect the environment. The application effect in the shed is better. Therefore, it is welcomed by farmers' friends. The following is a brief description of the method for the application of medicinal fertilizer: (a) The mixture of urea and detergent. According to the use of urea 0.5 kg -0.75 kg per acre, detergent 125 grams, mixed with 50 kg -60 kg of water dissolved, the crop spraying the foliage, can prevent food crops, cotton, vegetables, fruit trees and other aphids, Red spiders and other pests, sprayed once every 7 days - 8 days, even sprayed 2-3 times, the effect of control is more than 90%, can increase crop yield by about 10%. Because laundry detergent contains surfactant sodium alkyl benzene sulphonate, it forms an impermeable and impermeable film on the surface of the worm body after contact with the worm body, causing the suffocation of the insect suffocation. (b) Dimethoate plus vinegar mixture. Using 40% dimethoate plus normal vinegar and water, mix 1:1:1500 to make even fruit vinegar, spraying 60 kg per acre with foliar, aphids for crops such as grain, cotton, vegetables, fruit trees, tobacco, etc. The spider mites, red spiders, thrips, leaf miners, and wheat leaf bumble bees had good results, and they were 33% less pesticides than dimethoate alone, and the insecticidal effect was increased by 20% to 30%. (3) Mixture of urea and dichlorvos. Per acre with 80% dichlorvos 25 ml, urea 0.5 kg, add 50 kg of water and mix the foliar spray. It can rapidly kill chewing mouthpart pests and sucking mouthpart pests on crops such as grain and cotton, fruit trees, vegetables, tea and flowers, especially on aphids, red spiders, cabbage caterpillars, bridge-building insects and whitefly. , Peach snacks and other insect pest control effect of 95%. Sprayed once every 7 days, sprayed 2 times - 3 times, both to receive satisfactory control effect, but also make the crop more than 10%. Dichlorvos are harmful to sorghum and cannot be used; melons and beans are sensitive to this drug and should be used with care. Dilution times should be increased. (d) Mixture of urea and dimethoate. Apply 40% Dimethoate EC 50 ml, urea 0.5 kg, water 60 kg mix, foliar sprayed crops such as grain, cotton, vegetables, fruit trees, flowers, etc., to prevent crop pests such as aphids, thrips, leaf miners and other pests. The effect is good, and there is a significant increase in production. The residual period of Indimethoate is only 5 days to 6 days, and the interval between the last spraying is 5 days. (5) Mixture of trichlorfon and plant ash. Ten kilograms of hay sifted per acre, mixed with 50 kilograms of fresh water, soaked for 24 hours, and then removed the filtrate. After adding 80% trichlorfon 25 grams, the crops were sprayed with foliar, cotton, vegetables, and fruit trees. It can control various insect pests such as aphids, red spider, cabbage caterpillar, bridge-building insects, armyworm, migratory locust, leafhopper and so on. Spray once every 7 days - 8 days, even spray 3 times, both to obtain satisfactory control effect, but also make the crop more than 10%. Because trichlorfon is sensitive to crops such as sorghum, soybeans, corn, and Marshal apples, it is prone to phytotoxicity and should not be used. (6) Mixture of nitrogen-phosphorus compound fertilizer and omethoate. Dissolve diammonium phosphate in water and mix it to make up 1% concentration of fertilizer solution. Use 50-60 kg of fertilizer solution per acre. Add 40% omethoate EC 20-30 ml to mix and spray. Spraying once every 7 days, even spraying 2-3 times, the control effect on spider mites, aphids, thrips, cotton bollworms, etc. reached more than 93%, and crops, cotton, vegetables and other crops increased 7.6% - 9.5%. (seven) phosphate fertilizer dilution. According to H. armigera spawning, the oxalic acid secreted by the cotton plants will spawn and encounter the habit of phosphorus escape. In its spawning period, it is immersed in the liquid or potassium dihydrogen phosphate 300-400 with 2% of superphosphate. The liquid is sprayed on the top of the cotton plant cover, spray 60 kg per mu, spray 8-10 lines per spray, leave 3 lines not spray, drive the bollworm to concentrate on the non-phosphorus-added cotton line, then use Good effect of killing eggs and insecticide 1000 times of water spraying of aminothionine spraying spawning line, that is, the effect of getting a multiplier effect. At the same time, the sprayed phosphate fertilizer reacts with the oxalic acid secreted by the cotton plant to produce calcium oxalate, so that the crop loses the ability to attract the bollworm.