Urea is not only a kind of high quality fertilizer commonly used, but also has certain insecticidal effect. 
1, urea and detergent preparation for each MU with urea 0.5-0.7 kg, neutral detergent 125 grams, with $number kg of water after the full dissolution of foliar spraying.　　

Can control the grain, cotton, vegetables, fruit trees and other crops on the aphids, red spider, caterpillar and other pests. Interval 7-8 days spraying once, continuously spurts 3 times, the control effect can reach about 95%. At the same time also played the role of topdressing, can increase the crop production more than 10%. 
2, urea and dichlorvos preparation of 80% Dichlorvos per mu 25 ml, urea 0.5 kg, add water 50 kg mixed evenly, carry out foliar spraying, on vegetables, fruit trees, grain, cotton, tea, flowers and other crops chewing mouth mouth pest and thorn suction mouth of the pest, has a powerful speed killing effect. The control effect of aphids, red spider, caterpillar worms, bridge worm, whitefly and peach worms was as high as 95%.　　

Every 6-7 days to prevent and control, the continuous prevention of 3 times, can save pesticide 50%, but also to increase crop production around 10%.　　

Because Dichlorvos has the medicine to the sorghum to harm, cannot use, to melon class, legume is more sensitive, must use carefully. 3, urea and the preparation of the plant per mu with 40% of the 50 ml of shea butter, urea 0.5 kg, water 60 kg, mixed evenly after the foliar spraying, can prevent vegetables, fruit trees, flowers, grain, cotton and other crops on aphids, thrips, latent leaf flies and other pests, and has a significant increase in the effect. 
Vinegar is rich in nutrition, will be ordinary vinegar, 40% le, water, according to the proportion of 1:1:1500 mixed evenly. 
Each MU foliar spraying preparation $number kg, can prevent the grain, cotton, vegetables, fruit trees, tobacco and other crops on aphids, red spider, thrips, submerged leaf flies, wheat leaf bee and other pests, control effect of about 95%. 
More than 30% of the pesticide can be saved by $number, and the insecticidal effect is improved. Because vinegar can soften the body wall of the insect pests, and enhance the osmotic force of the liquid, thus improving the control effect.

Potassium chloride agriculture is a potassium fertilizer. Its fertilizer effect is quick, apply to farmland directly, can make soil substratum moisture rises, have the function of drought resistance. However, it is not suitable to use in saline-alkali land and tobacco, sweet potato, sugar beet and other crops

According to statistics, in the international potassium chloride market consumption structure, about 95 percent of potassium chloride is used in the production of agricultural potassium fertilizer, and only 5 percent is used in the field of food and medical potassium chloride. From the global market, food-grade potassium chloride is mainly concentrated in food industry ingredients, additives and other related industries, relatively stable consumption scale. In 2012, worldwide demand for food-grade potassium chloride was about 200,000 tons. The consumption of potassium chloride for food and medicine in China is about 40,000 tons. With the improvement of people's living standards, the demand of Chinese residents for low-sodium salt products, condiments and other products is also increasing rapidly, which will drive the stable growth of the consumption of food-grade potassium chloride and other ingredients upstream.