Tobacco plantation soil acidification improver and application method thereof

A soil conditioner and conditioner technology, applied in chemical instruments and methods, soil preparation methods, soil conditioning materials, etc., can solve problems such as soil fertility obstacles, decline in yield and quality of tobacco leaves, reduce organic matter content, prevent soil compaction, and easily obtained effect

Inactive Publication Date: 2013-11-27
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of tobacco leaf yield and quality decline caused by the acidification of tobacco planting soil, and the problems of soil fertility and soil-borne diseases derived therefrom, the present invention provides an acidified tobacco planting soil improver and its application method, which can improve acidic soil At the same time, comprehensive control of soil-borne diseases of tobacco leaves

Method used

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  • Tobacco plantation soil acidification improver and application method thereof
  • Tobacco plantation soil acidification improver and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Improver preparation: Accurately weigh 80.0kg of quicklime, 150.0kg of dolomite powder, 15.0kg of lime nitrogen, and 35.0kg of peat, and feed them in sequence and mix them for 5 minutes to obtain a uniformly mixed acidified soil conditioner for tobacco planting.

[0032] Sampling and analysis: The tobacco planting soil (soil depth 0-15cm) has a pH of 4.6 and an exchangeable acid of 3.23 cmol / kg, which belongs to strong acidic soil.

[0033] Experimental design: 100 tobacco plants are treated each time, with an area of ​​70m2 2 ; And set a control group that does not use the modifier; each treatment is set to repeat 3 times.

[0034] Application of the improver: The application rate of the improver is 280kg / mu, and it is spread before ridge fertilization in April.

[0035] After the 90th day after applying the amendment, collect a 0-15cm soil sample for analysis, use the potentiometric method for soil pH (the ratio of water to soil is 2.5:1), and use KCl exchange for ex...

Embodiment 2

[0040] Improver preparation: Accurately weigh 100.0kg of quicklime, 175.0kg of dolomite powder, 30.0kg of lime nitrogen, and 35.0kg of peat, and then feed and mix them for 5 minutes to obtain a uniformly mixed acidified soil conditioner for tobacco planting;

[0041] Sampling and analysis: the pH value of the tobacco planting soil (soil depth 0-15cm) is 4.0, exchangeable acid (5.32cmol / kg, belongs to strong acidic soil, and the incidence of bacterial wilt, the main soil-borne disease of tobacco leaves, is greater than 70% , the stems of the tobacco leaves are short and the leaves are not open enough.

[0042] The experimental design is the same as in Example 1.

[0043] Improving agent application: 340kg / mu of acidic improving agent is applied before ridge fertilization in April, and another 20% of the quicklime component in the improving agent, that is, 20kg quicklime, is prepared according to the mass ratio of quicklime:water of 1:20 into a suspension, and irrigate the root...

Embodiment 3

[0046] Improver preparation: Accurately weigh 50.0kg of quicklime, 105.0kg of dolomite powder, 15.0kg of lime nitrogen, and 30.0kg of peat, and feed them in sequence and mix them for 5 minutes to obtain a homogeneously mixed acidified tobacco planting soil improver;

[0047]Sampling and analysis: The tobacco planting soil (soil depth 0-15cm) has a pH of 5.2 and an exchangeable acid of 1.37cmol / kg, which belongs to acidic soil.

[0048] The experimental design is the same as in Example 1.

[0049] Application of the improver: the application rate of the improver is 200kg / mu, and it is spread before ridge fertilization in April.

[0050] After the 90th day after application of the amendment, a 0-15cm soil sample was collected for analysis:

[0051] Table 2 The status of soil pH and latent acid after applying amendments

[0052]

[0053] It can be seen from Table 2 that after applying 200kg / mu of amendment, the pH value of the soil increased by 0.4 units after 90 days, while...

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Abstract

The invention relates to a tobacco plantation soil acidification improver and an application method thereof. The improver is prepared from the raw materials of: 20-30wt% of quick lime, 50-60wt% of dolomite powder, 5-10% of lime nitrogen, and 10-15wt% of peat. The application method comprises the steps that: (1) the soil is sampled, and pH value is measured; and (2) according to different pH values, the improver with different dose is applied. With the soil improvement structure, soil caking is prevented, soil organics are supplemented, and soil-borne diseases of tobaccos can be comprehensively controlled. The improver has the advantages of simple preparation method, easy-to-obtain raw materials, and low cost.

Description

technical field [0001] The invention belongs to the technical field of acidified soil improvement, in particular to an acidified tobacco planting soil improver and its application method. Background technique [0002] Soil acidification is an important indicator of soil quality degradation, and it is also one of the world's ecological and environmental problems. In recent years, with the rapid development of China's industry, acid deposition has become increasingly serious and chemical fertilizers have been widely used in agricultural production, which has greatly accelerated the rate of soil acidification. According to the data, 90% of the farmland soil in China has experienced varying degrees of acidification, and its pH value has dropped by about 0.5 units on average. [0003] The optimum soil pH for the growth of high-quality tobacco leaves is 5.5-6.5, too high or too low will have adverse effects on the growth of tobacco plants and the quality of tobacco leaves. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01B79/02C09K109/00
Inventor 佀国涵袁家富赵书军徐大兵郭祥彭五星樊俊王永健
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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