Drywall Screw,Galvanized Drywall Screw,Phosphate Drywall Screw Weihao Hardware Wire Mesh Products Co., Ltd. , http://www.hsbarbedwire.com
Mr. Gao of Suining in Jiangsu asked, what effect does potash have on crops?
Expert: Potassium fertilizer contains potassium, which is an essential nutrient for crops. Its main functions include the following aspects: 1. Potassium is an activator of more than 60 kinds of biological enzymes, which can ensure the normal growth and development of crops. 2. Potassium promotes photosynthesis and can increase the absorption and transformation of carbon dioxide by crops. 3. Potassium promotes the synthesis of sugar and fat, which can improve product quality. Potassium promotes the synthesis of cellulose, can enhance the lodging resistance of rice, wheat and corn, and improve the yield and quality of cotton and hemp. 5. Potassium regulates cell fluid concentration and cell wall permeability, which can improve the ability of crops to resist pests and diseases, drought and cold. 6. Potassium promotes early nodule of leguminous crops and can improve nitrogen fixation capacity. Therefore, almost every crop requires an appropriate amount of potassium fertilizer.
As a fertilizer distributor, how can farmers explain the role of potash?
Ms. Qian, from Fuyang, Anhui Province, is a fertilizer distributor. She asked how to explain the role of potash to farmers in popular language.
Experts: It is recommended to tell farmers that potassium is a substance conversion. Potassium can increase the starch content of potato pieces, sugar content of sugar crops and fruits; potassium is long fiber and strong stalk, so potassium can make cotton. The fiber of the hemp crop grows long and good, and the cereal crop does not fall down; the ability of various crops to resist drought, cold, and pests and diseases has also been improved. In a word, potash is a treasure, high quality and high yield can not be separated.
What kind of potash is good for rice and garlic?
Mr. Hua from Chengdu, Sichuan asked, what kind of potash is good for growing rice and garlic?
Expert: Rice is resistant to chlorine, potassium chloride should be used; garlic is more sensitive to chlorine, and potassium sulfate should be used. In addition, potassium sulphate in rice is prone to hydrogen sulfide and is rooted under long-term flooding conditions; while garlic is sulphur, potassium sulphate can improve flavor and improve quality.
How to prepare potash fertilizer for wheat, cotton and tomato?
Mr. Song of Dezhou, Shandong Province grows wheat, cotton and greenhouse tomatoes. Among them, there are salt and alkali in cotton fields. How do you prepare potash?
Expert: Potash preparation should start from two aspects, first, what kind of potash is needed, and second, how much potash is needed. Wheat is more resistant to chlorine, potassium chloride can be used; cotton is also resistant to chlorine, but the salt and alkali are used in the plot. Potassium sulphate should be used. The tomato in the greenhouse should have medium chlorine resistance and the soil salt content in the greenhouse should be high. Potassium sulphate should also be used. As for how much to use, it can be estimated based on the amount of application per acre and the area planted. Winter wheat needs to apply 3-5kg of potassium chloride per acre; cotton needs to apply potassium sulfate 8-10kg per acre; greenhouse tomato needs to apply 30-40kg of potassium sulfate per acre, about 1/3 of which is used as base fertilizer, and the rest is topdressing, divided application . After multiplying the application amount per acre by the planting area, the total demand for each potash fertilizer is obtained.
How to choose potash based on the chlorine resistance of crops?
Ms. Shao from Chenzhou, Hunan asked, what is the chlorine resistance of crops? How should we choose potash based on the chlorine resistance of crops?
Expert: Crop chlorine tolerance refers to the ability of crops to endure the chlorine in the roots without poisoning. The lower the concentration of poisoning, the worse the chlorine resistance. Among the common crops, there are beet, spinach, millet, kenaf, radish, chrysanthemum, rice, sorghum, cotton, rape, cucumber, barley, etc., which can be selected from potassium chloride. Corn, tomato, eggplant, soybean, broad bean, pea, cabbage, sugar cane, peanut, celery, flax, pepper, Chinese cabbage, small rape, strawberry, broccoli, etc., can apply some potassium chloride in the base fertilizer; weak chlorine resistance There are potatoes, sweet potatoes, grapes, apples, leeks, lettuce, flue-cured tobacco, etc. Potassium sulphate should be used.
In addition, it depends on the local rainwater and irrigation conditions. For example, the climate in the northwest is dry and the soil salinization is more common. Generally, less or no potassium chloride should be applied. Closed management of greenhouse vegetable fields, high salt content, and not suitable for the application of potassium chloride. In areas with heavy rain or irrigation conditions, potassium chloride can be applied in the base fertilizer because the chlorine in the soil is easily lost with water. (Senior Consultant of Sinofert, Professor of China Agricultural University Wang Xingren)
Rational use of potash on crops
What effect does potash have on crops?
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】