Ecological safe potato fertilizer formula

Abstract

The invention provides an ecological safe potato fertilizer formula.A fertilizer is prepared from base fertilizer, primary topdressing fertilizer and secondary topdressing fertilizer.The mass ratio of the base fertilizer to the primary topdressing fertilizer to the secondary topdressing fertilizer is (20-30):(1-1.5):(0.6-0.9).The base fertilizer is prepared from, by mass, 25-35 parts of nitrogen, phosphorus and potassium mixed fertilizer, 2-6 parts of medium and trace elements, 10-15 parts of diatomite, 5-8 parts of fly ash, 100-140 parts of organic fertilizer and 12-20 parts of vermiculite, wherein the organic fertilizer is prepared from, by mass, 10-20 parts of plant ash, 10-20 parts of dried sludge, 10-20 parts of plant straw powder, 50-80 parts of animal feces, 10-15 parts of soybean meal powder, 5-10 parts of Chinese herbal medicine and 0.1-0.3 part of a biological fermentation agent.The mass ratio of nitrogen fertilizer and potassium fertilizer in the primary topdressing fertilizer is (2.5-3.5):1.The mass ratio of nitrogen fertilizer to potassium fertilizer in the secondary topdressing fertilizer is (0.8-1.5):1.The ecological safe potato fertilizer formula can prolong nutrition sustained-release period, greatly increase the utilization rate of the fertilizer and improve the soil structure.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to an ecologically safe 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, potassium, c...

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