Special mixed fertilizer for slow release type astragalus mongholicus

Abstract

The invention discloses a special mixed fertilizer for slow release type astragalus mongholicus. The fertilizer is composed of, by mass, 188-196 parts of urea, 272-286 parts of diammonium phosphate, 136-143 parts of monoammonium phosphate, 294-314 parts of potassium sulfate, 58-115 parts of magnesium sulfate monohydrate, 12-18 parts of EDTA chelated iron, 8-12 parts of EDTA chelated zinc and 4-6 parts of EDTA chelated manganese, the urea is composed of sulfur-coated urea, resin-coated urea and peptide urea, and the mass ratio of the sulfur-coated urea, the resin-coated urea and the peptide urea is (3-4): (2-3):1. According to the fertilizer, fertilizer removing is not needed in whole year after one-time fertilizer application, which reduces labor input, reduces fertilizer component loss, reduces emissions, improves fertilizer utilization rate and minimizes environmental pollution to the largest extent, and the purposes of cost reducing, yield increasing, quality and effect enhancing and environment protection are achieved.

Description

technical field [0001] The invention relates to the technical field of crop fertilization, in particular to a special fertilizer for Astragalus planting and application. Background technique [0002] Astragalus is a perennial herb of the leguminous family, and its rhizome is used as a medicinal material. It is a bulk of traditional Chinese medicinal materials, and it is also a medicinal and edible homologous species announced by the Administration of Traditional Chinese Medicine. Because of its large amount, it is cultivated on a large scale. Astragalus has a long history of planting, and the main producing areas of Astragalus are Inner Mongolia, Shanxi, Shaanxi, Gansu and other places. Due to different soil quality, climate, different fertilization varieties and methods, the content of medicinal materials varies greatly from place to place. [0003] Fertilization methods are uneven when planting Astragalus membranaceus, and the content of active ingredients in Astragalus ...

AI Technical Summary

Problems solved by technology

In recent years, growers have excessively applied chemical fertilizers, which has caused soil compaction, polluted the environment and groundwater; at the same time, it has caused a high incidence of Astragalus pests and diseases, and there is an urgent need for a special fertilizer suitable for Astragalus planting.

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