A method for preventing secondary salinization of greenhouse soil

A secondary salinization and soil technology, applied in the direction of soil preparation methods, botanical equipment and methods, planting substrates, etc., can solve problems such as unsatisfactory control methods, and achieve sustainable development, prevention and control of soil salinization, The effect of reducing salt is obvious

Active Publication Date: 2021-05-28
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for the prevention and treatment of secondary salinization of greenhouse soil, which solves the unsatisfactory technical problem of the prevention and control method for secondary salinization of greenhouse soil in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The control method of the present embodiment greenhouse soil secondary salinization comprises the following steps:

[0030] S1. Apply substrate to the greenhouse soil, plow the soil 25cm deep, and apply 500kg of substrate per mu;

[0031] S2. One month after applying the matrix to the greenhouse soil, apply a soil improver to the greenhouse soil, with an application rate of 80 kg per mu, plow the greenhouse soil evenly once, and plow it deeply by 25 cm, and adjust the moisture content of the plowed soil to 15-30%;

[0032] S3, vegetables are densely planted on the greenhouse soil after step S2 treatment, when the vegetable seedlings are planted, irrigate the seedling water, the vegetables are cucumbers, the cucumber planting density is 3700 plants / mu, after the cucumber seedlings are field planted, water the seedling water 30 square / mu;

[0033] S4. After the vegetable seedlings are planted, fertilization is carried out, and the output of cucumber per mu is 20,000 jin, ...

Embodiment 2

[0039] The control method of the present embodiment greenhouse soil secondary salinization comprises the following steps:

[0040] S1. Apply substrate to the greenhouse soil, plow the soil 35cm deep, and apply 1000 kg of substrate per mu;

[0041] S2. After 2 months after the substrate is applied to the greenhouse soil, apply a soil improver to the greenhouse soil at an application rate of 160 kg per mu. Plow the greenhouse soil evenly once with a depth of 35 cm, and adjust the moisture content of the plowed soil to 15-30%;

[0042] S3, densely plant the vegetables on the greenhouse soil after step S2 treatment, irrigate seedling water after the vegetable seedlings are planted, the vegetables are tomatoes, and the yield of tomatoes per mu is 20,000 jin, and N16 kg and P are applied per mu. 2 o 5 6 kg, K 2 O 37 kg, no irrigation and fertilization during the seedling and flowering stages of tomato production, irrigation and fertilization for the first fruit set of tomatoes, an...

Embodiment 3

[0050] The control method of the present embodiment greenhouse soil secondary salinization comprises the following steps:

[0051] S1. Apply substrate to the greenhouse soil, plow the soil 30cm deep, and apply 750kg of substrate per mu;

[0052] S2. After one and a half months after applying the matrix to the greenhouse soil, apply a soil improver to the greenhouse soil, with an application rate of 120 kg per mu, plow the greenhouse soil evenly once, deeply plow 30 cm, and adjust the moisture content of the plowed soil to 15-30%;

[0053] S3, densely plant vegetables on the greenhouse soil after step S2 treatment, when the vegetable seedlings are planted, irrigate the seedling water, and the seedling water is controlled to 30 cubic meters / mu;

[0054] S4, after the vegetable seedlings are planted, fertilization is carried out;

[0055] S5. After the vegetables are picked, the greenhouse soil is irrigated during the fallow period, so that the water content of the soil after ir...

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Abstract

The invention provides a method for preventing and controlling secondary salinization of greenhouse soil, and relates to the technical field of prevention and control of greenhouse soil salinization. The present invention starts from the causes of soil salinization, reduces the application of nitrogen fertilizers, uses substrates and amendments to fertilize and control the salinity of the greenhouse soil, irrigates and washes the salt during the fallow period, rationally irrigates water during the planting period, and controls the return of salt, which can effectively control Soil salinization will not have adverse effects on the soil, will not pollute the environment, and is conducive to the sustainable development of facility agriculture.

Description

technical field [0001] The invention relates to the technical field of greenhouse soil salinization prevention and control, in particular to a method for preventing secondary salinization of greenhouse soil. Background technique [0002] With the gradual increase in vegetable planting area and output in my country, the problem of soil pollution and degradation in vegetable fields has attracted attention. Investigation and research on soil samples from 633 facilities in major vegetable areas across the country found that the average conductivity of greenhouse and greenhouse soils was 523.6 μS / cm and 540.1 μS / cm, and the soil samples higher than the normal growth threshold (600 μS / cm) of vegetables were close to 30% of the total. Because protected cultivation can artificially control the conditions, thereby speeding up the growth of crops, increasing the yield of crops, and at the same time realizing all-weather and annual production, protected cultivation has become an import...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G22/15A01G24/22C05G1/00C05G3/00C05G3/40C05G3/80
Inventor 武雪萍李若楠张彦才岳继生赵来明
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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