Tengzhou potato potato "test soil formula, package fertilizer" program

Tengzhou potato potato "test soil formula, package fertilizer" program requirements for potato fertilizer: potato production is high, is a hi-favorable sulfur crops. In the growth process of potato, the demand of nitrogen, phosphorus and potassium nutrients is the most potassium, followed by nitrogen and less phosphorus. Experiments have shown that for every 1000 kg of potato tubers produced, approximately 5 kg of nitrogen, 2 kg of phosphorus, 10 kg of potassium, 1 kg of sulfur, 1 kg of calcium, and 1 kg of magnesium are required to be absorbed; period. There are two major fertilizer problems in the cultivation of potato in Tengzhou: First, the issue of fertilizer supply for potatoes (balanced fertilization). There are four major problems: (1) The input of chemical fertilizers is severely excessive. Generally, 15-15-15 compound fertilizers (150-200 kg) are used per mu. (2) Too much nitrogen, more phosphorus and less potassium. (3) There is a serious shortage of trace elements and trace elements. (4) Some farmers still use chlorine-containing fertilizers. These three major problems led to the imbalance in the proportion of various nutrients in the soil, and the phenomenon of salinization and acidification became increasingly serious, which seriously affected the potato yield. In particular, the older farmers’ friends used only nitrogenous fertilizer (urea) and phosphate fertilizer (diammonium phosphate) in potato fertilization, and no potash fertilizer and trace element fertilizer were used at all. They have an old saying: "The potatoes I planted for more than ten years are all like fertilizers. They have grown very well. The current output is not enough, because the quality of the fertilizer is not as good as it used to be." What needs to be pointed out here is that it is not that our fertilizers are not working, but that our land has been seriously degraded because of consecutive years of planting. The status quo in the land is: nitrogen is abundant, there is a lot of phosphorus, and there is a serious shortage of potassium supply capacity, and trace elements are seriously insufficient. In the cultivation of potatoes, the use of high-potassium fertilizers and trace element fertilizers can be applied as much as possible, which can significantly improve their ability to resist drought, locust and lodging, and increase yield. The effect of increasing production is not achieved by single application of nitrogen fertilizer and phosphate fertilizer. Second, potato nutrition problems. Due to continuous cropping for a long time, the soil fertility has continuously decreased and the soil-borne diseases have become increasingly serious. The growth of potato roots has been severely inhibited, resulting in a significant decline in the nutrient absorption capacity of potatoes. Tengzhou potato formula fertilization package program: First, base fertilizer: In the amount of the use of farmyard fertilizer on the basis of high-quality fertilizer can be selected as 200 kg of base fertilizer, fertilization must be isolated fertilizer, prevent burning seedlings burning. (1) Virtue brand potassium sulfate long-acting potash fertilizer 15-15-20, 100 kg per mu. (2) Germany Lions 12-12-17 full-nutrition compound fertilizer, 50 kg per mu. (3) German Red Bull brand organic agriculture can use pollution-free potassium sulfate, 50 kg per mu. Second, top-dressing: in the period of hair (five real leaf period), with the water flush Shi Lion brand 21-8-11 nutrient compound fertilizer, 20 pounds per mu, once every 15 days, a total of two times. (Topping a total of 40 pounds, invest about 60 yuan) Third, foliar dressing: (1) In the hair-fat period (five real leaf period), spraying 1-2 times lions and horses full-fungus leaf fertilizer (dilution) 1000 times) and complex trace element fertilizer procyanidins (diluted 5000 times), can greatly promote the growth of potato stems and leaves, effective supply of zinc, iron, copper, manganese, boron, molybdenum and other trace elements, can improve the disease resistance of potatoes. (2) In the tuber stage, spraying 1-2 times lion and horse nutritious whole leaf fertilizer king (diluted 1000 times) and compound microelement fat mangostin (diluted 5000 times), can greatly promote potato tubers Expansion, effective supply of zinc, copper, manganese, boron, molybdenum and other trace elements, can improve the disease resistance of potatoes, can greatly increase the yield of potatoes. Fourth, the use of potatoes Kepu Ke, greatly promote the growth of roots, improve fertilizer utilization, solve fertilizer nutrient absorption problems. At the same time, it enhances the ability to resist adverse conditions such as root-knot nematodes. (1) Soak and dip root before transplanting: potato Kepuke 100 ml per acre, dilute 500 times, soak for 5 minutes, and remove. (Kapke can be used as a soaking instead of 920 to break the dormancy period of the potato and promote strong seedlings.) (2) After 3-4 weeks of transplanting, spray once with potato Kepler 100 times. Two weeks later, potatoes were sprayed once again with a 400-fold solution of Kapok. Do not use after flowering. Note: 1, using Ke Pu Ke, pay attention to soaking time and use concentration. 2, potato Ke Pu Ke can not be used under alkaline conditions (can not be mixed with alkaline substances). Description (A), the main advantages of the recommended formula* The available ratio of N, P, and K is 12:5:33, which is in accordance with the ratio of potatoes to the nutrient requirement of 2.4:1:5. Solved the problem of less potassium and more phosphorus and more potassium. * The form of fertilizer used is particular: nitrate nitrogen and ammonium nitrogen, water-soluble phosphorus and ammonium lemon-soluble phosphorus not only increase the utilization of fertilizer, but also stimulate the growth of crops. * Full nutrition, complete with trace elements, can effectively prevent various nutrients, increase disease resistance of crops, and increase output. * The used fertilizer is elegant and the quality is guaranteed. Lion and Red Bull brand fertilizers are well-known brand fertilizers imported from Germany. Zhongde Brand Fertilizer Fertilizer is a large German-owned company, and is the only domestic manufacturer that uses Red Bull brand potassium sulfate as raw material. Explanation (2) Reasons and purposes for the use of fertilizers in the recommended formula 1. Use the German Red Bull brand of potassium sulfate (containing 50% of potassium and 18% of sulfur). The main objective is to prevent sulphur nutrition and solve the problem of shortage of potassium while preventing Heavy metal hazards. 2. Use the German Lions and Horses brand 12-12-17 full-nutrition compound fertilizer to solve the problem of supply of middle and trace elements from the root. At the same time, the nitrate nitrogen in the lion and horse brand fertilizers has an effect of promoting the potato. 3. The German lion horse composite fruit trace element composite trace element fertilizer was used to solve the supply problem of trace elements from the leaf surface. 4. Selection of potatoes Kepuk: To greatly promote the growth of potato roots, improve the utilization of fertilizers, and solve the nutrient absorption of fertilizers. 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