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A facility vegetable fertilization method for reducing nitrogen leaching loss and its application

A fertilization method and facility technology, applied in the direction of fertilization method, application, fertilization device, etc., can solve the problems of soil secondary pollution, etc., achieve the goal of reducing the cumulative leaching amount of total nitrogen, reducing nitrogen leaching loss, and improving yield and quality Effect

Active Publication Date: 2022-03-04
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A facility vegetable fertilization method for reducing nitrogen leaching loss and its application
  • A facility vegetable fertilization method for reducing nitrogen leaching loss and its application
  • A facility vegetable fertilization method for reducing nitrogen leaching loss and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The crop shown is tomato, the first crop variety is 168, the planting time is October 8, 2017, and the seedlings are pulled on March 24, 2018. The second crop variety is Fenwang No. 1, and the planting time is April 1, 2018 On July 30, 2018, the seedlings were pulled. A total of 5 treatments, each with 3 repetitions, the area of ​​the plot is 45.5m 2 , the planting density is 54,000 plants / hm 2 . The test treatment looks like this:

[0032] Conventional treatment (FP): 66.8-83-91.8 per mu shared by two stubbles, of which 45-75-45 are applied as base, and topdressing is divided into 7 times for the rest;

[0033] Optimum fertilization treatment (OPT): 46.8-40.3-61.8 per mu, of which 33.7-35.5-33.7 for base application, and 7 topdressing for the rest;

[0034] Optimized fertilization treatment (DN1): optimized fertilization treatment + 2.5% DCD + 0.25% NBPT;

[0035] Optimized fertilization treatment (DN2): optimized fertilization treatment + 5% DCD + 0.5% NBPT;

[...

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Abstract

The invention provides a facility vegetable fertilization method for reducing nitrogen leaching loss and its application, and relates to the technical field of facility vegetable cultivation; At the same time of yield and quality, it can reduce nitrogen leaching loss and has strong operability. It is of great significance for protecting the groundwater environment and improving the quality of cultivated land. Using the above fertilization method, the single-season tomato yield can reach up to 135.80t / hm 2 , the output of the two crops is up to 342.06t / hm 2 ; In the tomato quality research, except that the nitrate content is significantly reduced (the reduction is up to 39%), the rest of the quality indicators have no significant impact; at the same time, the apparent utilization rate of fertilizers and partial productivity of fertilizers can be improved, and total nitrogen can be reduced. Cumulative leaching amount (maximum reduction of 15.99%); in addition, it is convenient to add in fertilizer production or planting process, and has very broad 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00A01B79/02C05G3/00C05G3/90
CPCA01C21/005A01B79/02C05G3/00C05B1/02Y02P60/21
Inventor 杨岩江丽华徐钰石璟刘丽王梅李妮
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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