Water-retention and slow-release inorganic fertilizer for potato, and preparation method thereof

Abstract

The invention discloses a water-retention and slow-release inorganic fertilizer for potato, and a preparation method thereof. The inorganic fertilizer is prepared from, by weight, 32-46 parts of urea, 24-32 parts of ammonium phosphate sulfate, 8-14 parts of potassium nitrate, 15-20 parts of ammonium bicarbonate, 12-18 parts of struvite, 1-2 parts of ammonium octamolybdate, 6-12 parts of phosphorus slag, 8-14 parts of limestone, 2-3 parts of magnesium chloride, 1.5-2.5 parts of ammonium ferrous sulfate, 0.5-1.5 parts of borax, 5-10 parts of sodium carboxymethyl starch, 7-13 parts of hydroxyethyl methyl cellulose, 18-24 parts of polyvinyl alcohol, 20-25 parts of polyacrylamide, 9-16 parts of sodium alginate, 4-8 parts of hydroxypropyl xanthan gum and 35-45 parts of composite stone granule. The inorganic fertilizer has the advantages of reasonable formula, balanced nutrition, excellent water-retention and slow-release performances, effective prevention of water and nutrient loss, improvement of the fertilizer nutrient and soil water utilization rates of potato, meeting of nutrition demands of potato in different growth stages through one-time fertilization, great reduction of the fertilization cost, reduction of pest diseases of the potato, and improvement of the output and the quality of the potato.

Description

technical field [0001] The invention relates to a water-retaining slow-release inorganic fertilizer for potatoes and a preparation method thereof, belonging to the field of agricultural fertilizers. Background technique [0002] Potato is an annual herbaceous plant belonging to the family Solanaceae, also known as ground eggs, potatoes, potatoes, etc. Fat 0.1-1.1%, crude fiber 0.6-0.8%. The protein, fat, sugar, crude fiber and various vitamins it contains are indispensable to the human body. With the continuous awareness of the nutritional value of potatoes and the continuous expansion of market demand, more and more attention has been paid to the production of potatoes. At present, the inorganic fertilizers used in potato production have fast nutrient release, short fertilizer effect and low fertilizer utilization, which increases the amount of fertilizer application. At the same time, the water retention performance is poor, water is easy to lose, and the water use effic...

AI Technical Summary

Problems solved by technology

At present, the inorganic fertilizers used in potato production have fast nutrient release, short fertilizer effect and low fertilizer utilization, which increases the amount of fertilizer application. At the same time, the water retention performance is poor, water is easy to lose, and the water use efficiency is also low, which affects the growth of potatoes. , limiting the improvement of its output and quality, unable to meet the demand of the market