Efficient potato special fertilizer formula

Abstract

The invention provides an efficient potato special fertilizer formula which comprises a base fertilizer, a preliminary dressing fertilizer and a secondary dressing fertilizer with the mass ratio being (20-30): (1-1.5): (0.6-0.9); the base fertilizer comprises, by mass, 5-8 parts of urea, 10-15 parts of calcium superphosphate, 8-12 parts of potassium sulphate, 1-2 parts of zinc sulfate, 2-4 parts of magnesium sulfate, 0.5-1 part of copper chloride, 2-3 parts of borax, 10-15 parts of kieselguhr, 5-8 parts of coal ash, 100-140 parts of organic fertilizer and 12-20 parts of vermiculite; the preliminary dressing fertilizer and the secondary dressing fertilizer are nitrogen fertilizer potassium, the mass ratio of nitrogen fertilizer potassium to potash fertilizer in the preliminary dressing fertilizer is (2.5-3.5): 1, and the mass ratio of nitrogen fertilizer potassium to potash fertilizer is (0.8-1.5) :1.According to the potato special fertilizer formula, different fertilizers are applied in different stages according o the growth characteristic of potatoes, excessive growth of potato seedlings in the earlier stage, the nutrition loss, fertilizer lack in the later period and early plant senescence can be avoided, the yield of potatoes is remarkably raised, and quality is remarkably improved.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a high-efficiency special potato fertilizer formula. Background technique [0002] Potatoes have played a huge role in providing nutritious and comprehensive food, ensuring food security, improving energy security, helping farmers get rid of poverty, and promoting the development of winter agriculture. Therefore, potatoes can be valued by countries all over the world, especially developing countries. greater role in the rural economy. Globally, the potato accounts for only 2% of the world's average dietary energy supply, yet it is a staple food in many countries. In developed countries, potatoes can provide 540kJ of energy per person per day, in developing countries, the figure is about 170kJ per person per day. In addition to providing the energy needed by the human body, many varieties of potatoes also contribute a certain amount of dietary fiber, ascorbic acid, potassi...

AI Technical Summary

Problems solved by technology

However, at present, the development of the potato industry is severely restricted by problems such as backward fertilization technology, single variety, and disease control. The problem of backward fertilization technology is the most prominent. The concept and practice of "exchanging large inputs for large outputs" has brought about three serious problems: First, because the potato itself has a certain limit to the absorption of nutrients, the excess fertilizer is lost with surface runoff, resulting in Serious environmental pollution, and this pollution has a tendency to accumulate and increase year by year; second, due to excessive fertilization, especially the imbalance of N, P, and K fertilizers, which seriously damages the repair and maintenance capabilities of the soil itself; third, to maintain relative For high yield, farmers must increase the amount and type of fertilization year by year, and due to the lack of balanced fertilization technology, the yield has not increased synchronously with the increase in fertilizer, which has increased the investment in potato planting, especially in the year of fertilizer price increase, potato planting has obvious benefits decline