A kind of fertilizer that can be used for seed fertilizer simultaneous sowing and its production method

Abstract

The invention discloses a fertilizer capable of being applied to seed-fertilizer co-sowing. The fertilizer is composed of the following raw materials in parts by weight: 20 to 30 parts of nitrogen source, 15 to 20 parts of phosphor source, 15 to 20 parts of potassium source, 5 to 10 parts of humic acid, 8 to 12 parts of fertilizer containing medium elements of calcium, magnesium, and sulfur, 1 to 5 parts of chelated trace element fertilizer, 0.5 to 1 part of root growth promoting agent, 1 to 5 parts of physiological active substance, and 5 to 15 parts of seedling burn preventive substance. The invention also discloses a preparation method of the fertilizer. A wet method phosphoric acid guniting and granulating technology or a conventional diammonium phosphate production technology is adopted to combine with a micro-capsule release control technology to carry out fertilizer production. The fertilizer can direct contact with crop seeds or roots, and thus avoids the phenomenon of seed burn and seedling burn due to the concentrated fertilizer application. Moreover, the fertilizer can be applied to mechanization sowing and fertilizing, and thus the fertilizing efficiency and fertilizer utilization rate are both improved.

Description

technical field [0001] The invention relates to a fertilizer which can be used for simultaneous sowing of seed and fertilizer and a production method thereof, in particular to a production method of a full-nutritional functional fertilizer in the field of chemical fertilizer production. Background technique [0002] In 2011, under the technical guidance of the National Agricultural Technology Extension Service Center, in accordance with the principle of combining agricultural machinery and agronomy, the country launched the slow-release fertilizer "simultaneous sowing of fertilizer" technology. Large households, family farms, farmers' professional cooperatives and other new agricultural business entities are gradually increasing. Mechanized fertilization is a key development direction of scientific fertilization in the future, and it is also a technology that new professional farmers urgently need for precision scientific farming. [0003] In actual production, the inevitabl...

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Problems solved by technology

For example, a rhizosphere-friendly fertilizer and its manufacturing method (ZL application number 200610002160.5) developed by Beijing Haiyifei Technology Co., Ltd. uses controlled-release fertilizers and / or slightly soluble nitrogen-containing compounds wrapped in divalent metal ammonium phosphate potassium Release fertilizer and water-soluble potassium fertilizer, root-stimulating agent, root-inducing agent, fertilizer containing trace elements and cemented slow-release fertilizer made of binder. The promotion will cause a great waste of nutrients, mainly used in seedling crops such as fruit trees and oil palm trees, with a long slow-release period

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