Facility vegetable fertilization method capable of reducing loss of nitrogen leaching and applications of facility vegetable fertilization method

Abstract

The invention provides a facility vegetable fertilization method capable of reducing the loss of nitrogen leaching and applications of the facility vegetable fertilization method, and relates to the technical field of facility vegetable cultivation. Through the optimization of the application amount of chemical fertilizer and the combination of a fertilizer synergist, the fertilization method canenhance the yield and quality of facility tomatoes and reduce the loss of nitrogen leaching, is strong in operability, and has important significance on protecting environments of underground water and enhancing the quality of cultivated land. Through the utilization of the fertilization method, the tomato yield of single seasons can reach up to 135.80 t / hm<2>, and two-time yield can reach up to 342.06 t / hm<2>; in the research of tomato quality, significant influences on other quality indexes cannot be generated except for the significant reduction of nitrate content (the amount of reduction being up to 39%); the apparent utilization of fertilizer and fertilizer partial productivity can also be increased, and total nitrogen accumulated leaching amount can be reduced (the highest reductionbeing 15.99%); and in addition, convenient addition can be achieved during fertilizer production or planting, so that the fertilization method has very wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of facility vegetable cultivation, and in particular relates to a facility vegetable fertilization method for reducing nitrogen leaching loss and an application thereof. Background technique [0002] With the reform of my country's agricultural supply side, more and more agricultural productivity is tilted towards high value-added vegetable planting, and the vegetable planting area in my country is also increasing year by year. In 2016, the national vegetable planting area reached 22.328 million hectares, of which the facility vegetable field planting The increase in area contributes a lot. Vegetable farmers use excessive fertilization (especially nitrogen fertilizer) for long-term irrigation in order to blindly pursue yield, while facility vegetable fields have good heat preservation and temperature control effects, and are less affected by external environmental conditions, so the multiple cropping index is...

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Problems solved by technology

However, the above scheme mainly adds polymer composite materials or organic solvents to the soil. Although it can reduce the leaching loss of nitrogen in the soil, it may also cause secondary damage to the soil due to the application of exogenous polymer composite materials. Pollution

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