Special compound fertilizer containing LMW (low molecular weight) polyglutamic acid for strawberries and preparation method of special compound fertilizer

Abstract

The invention discloses special compound fertilizer containing LMW (low molecular weight) polyglutamic acid for strawberries and a preparation method of the special compound fertilizer. According to the method, the special compound fertilizer is prepared from LMW polyglutamic acid fermentation broth, urea, potassium sulfate, calcium hydrogen phosphate, ammonium hydrogen carbonate, magnesium sulfate, borax, zinc sulfate, manganese sulfate, ammonium molybdate, distillers' grains, plant ash and animal waste, and organic fertilizer is prepared from LMW polyglutamic acid cheated medium trace elements, the distillers' grains, the plant ash and the animal waste. The special compound fertilizer for the strawberries is rich in polyglutamic acid, trace elements and organic fertilizer, so that nutriment supply of the strawberry growing process is guaranteed, furthermore, the fertilizer has slow release feature, so that soil fertility can be improved, strawberry yield is greatly increased, meanwhile, the utilization rate of the fertilizer is increased, and the production cost is reduced.

Description

technical field The invention belongs to the technical field of crop fertilizer preparation, and in particular relates to a special compound fertilizer for strawberries containing low molecular weight polyglutamic acid and a preparation method thereof. Background technique Strawberry is an important economic crop widely cultivated at home and abroad. Strawberries have high nutritional value, contain a variety of nutrients, and have good health effects. Although strawberry cultivation techniques are becoming more and more mature, most of them use chemical fertilizers when planting and fertilizing. Although chemical fertilizers can increase strawberry yields, their nutritional components are single, the utilization rate of strawberries is low, and the environment is polluted. In the long run, strawberries will cause disease resistance. Low potency, small fruit, dull fruit, poor taste. Therefore, in my country's strawberry production, the development and scientific applicatio...

AI Technical Summary

Problems solved by technology

Since the relative average molecular weight of polyglutamic acid can be as high as 1000KDa or more, and the viscosity is high, when it is used as a synergist on crops, if the concentration is not appropriate, it is easy to wrap the seeds or roots, resulting in a decrease in the contact area between the seeds or roots and the air. , which is detrimental to the growth of crops

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