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Agricultural application technology of Zn fertilizers

A zinc fertilizer and agricultural technology, applied in the field of agricultural fertilization, can solve problems such as undiscovered

Inactive Publication Date: 2015-02-18
何文
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Problems solved by technology

Relevant literatures at home and abroad have been searched: no report with the same content as "A Zinc Fertilizer Agricultural Application Technology" was found

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Embodiment Construction

[0008] According to the current unified effective zinc determination method, it is determined by DTPA leaching-atomic absorption spectrophotometry or ICP method, using diethylenetriaminepentaacetic acid (DTPA) as a chelating agent and triethanolamine as a buffer through atomic absorption spectrophotometry The soil available zinc content was determined by the method, and then compared with the grading standard to determine the abundance and deficiency of soil available zinc. When 3 kg of zinc fertilizer (equivalent to pure Zn) is applied per hectare of farmland, the theoretical concentration of effective zinc in the tillage layer of the soil can be increased by 1.3 mg / kg, and the theoretical concentration of effective zinc in the tillage layer of the medium level of available zinc can be increased compared with the original The initial concentration of soil available zinc is increased by 130-260%, ensuring that the supply capacity of soil available zinc reaches a higher level of...

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Abstract

The invention belongs to the field of agricultural fertilizer application, and in particular relates to a technology for improving the utilization rate of Zn fertilizers applied to crops. In the agricultural application of Zn fertilizers, after the Zn fertilizers of about 3kg (equivalent to pure Zn) are applied into farmland soil (per hectare) with zinc deficiency, a theoretical concentration of a farmland plowing layer containing low-level available Zn can be improved by 130% to 260% in comparison with an initial concentration of the available Zn in the original soil, and thus the supply capacity of the available Zn in the soil can reach a high level, i.e., the Zn fertilizers can meet the demand of Zn absorption of crops within 3 to 4 years. Therefore, when the Zn fertilizers are applied, only the Zn fertilizers of about 3kg (equivalent to pure Zn) need to be applied to the farmland soil (per hectare) with zinc deficiency at an interval of 3 to 4 years, and the application of the Zn fertilizers each year is not required.

Description

technical field [0001] The invention belongs to the field of agricultural fertilization, and the patent code is A01C. It specifically relates to the technology of improving application efficiency in zinc fertilization. Background technique [0002] Zinc is one of the essential trace elements for plants. Zinc is a cation Zn 2+ The form is absorbed by plants, and it indirectly affects the synthesis of auxin in crops. When crops are deficient in zinc, the content of auxin in stems and buds decreases, growth stagnates, and plants are short; at the same time, zinc is also an activator of many enzymes, through It has a wide range of effects on plant carbon and nitrogen metabolism, so it is helpful for photosynthesis; at the same time, zinc can also enhance the stress resistance of plants, increase the weight of grains, and change the ratio of seeds to stems; [0003] Zinc is mainly used as a metal activator of enzymes in plants, and is a constituent element of some dehydrogenase...

Claims

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Application Information

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IPC IPC(8): A01C21/00C05D9/02
Inventor 何文高鹏简红忠邓根生王晓峰葛红光王永琦李栓曹
Owner 何文
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