Controlled-release fertilizer special for garlic and containing particle potassium sulfate and particle potassium chloride

Abstract

The invention relates to controlled-release fertilizer special for garlic and containing particle potassium sulfate and particle potassium chloride. Specifically, resin urea, particle potassium sulfate, particle potassium chloride, ammonium dihydrogen phosphate or diammonium hydrogen phosphate, boron-zinc-magnesium and other medium trace elements are mixed according to a certain proportion. Resincoated urea is adopted for controlled-release nitrogen, and the requirement of garlic in the whole growth and development period for nitrogen can be met; the mobility and absorptivity of low-temperature potassium in winter are improved through particle potassium chloride, the nutrient growth in the early period is facilitated, and the disease-resistant capacity of the garlic is improved through chloride ions; the reproductive growth in the later period is facilitated through particle potassium sulfate, the piquancy degree of garlic bulbs is increased, and the quality of the garlic bulbs is improved. Meanwhile, by adding sulphur-containing components such as ammonium sulfate, sulphate-potassium magnesium and magnesium sulfate and particle boron-zinc, the medium trace elements are supplemented. The cost of fertilizer per ton is greatly lowered compared with garlic fertilizer completely adopting potassium sulfate, one-time fertilization on the garlic can be achieved, the fertilization frequency is reduced, and the labor cost is lowered.

Description

technical field [0001] The invention relates to the technical field of controlled-release fertilizers, in particular to a special controlled-release fertilizer for garlic containing granular potassium sulfate and granular potassium chloride. Background technique [0002] Garlic, Liliaceae Allium genus, underground bulbs divided into petals, divided into purple-skinned species and white-skinned species according to skin color. The taste is pungent and has a pungent smell. It can be eaten or seasoned, and can also be used as medicine. Garlic species were introduced into my country from the Western Regions during the Western Han Dynasty, and were popular among the public through artificial cultivation and breeding. Because garlic has high practical value and economic benefits, garlic is planted in a large area in my country. China's garlic production accounts for more than 70% of the world's total production. China's garlic planting area reaches about 700,000 hectares, account...

AI Technical Summary

Problems solved by technology

However, the potash fertilizer in this patent is all derived from potassium sulfate compound fertilizer and potassium sulfate. Potassium sulfate has poor mobility and absorption in winter, and is not easy to be absorbed by garlic, so it is difficult to meet the demand for potassium fertilizer in the vegetative growth period of garlic; there is no chloride ion in the product, and it is resistant to Poor disease resistance, garlic is easy to get rot disease, in addition, the price of pure potassium sulfate is relatively high, all potassium sulfate is used, and the cost of fertilizer is high