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Nutritional type composite soil conditioner for improving acidity and application thereof

A soil conditioner and nutritional technology, applied in the soil conditioner and its application fields, can solve the problems of accelerated soil nutrient imbalance, poor mobility, soil compaction, etc., to avoid drift loss, increase yield, and improve soil nutrient content. Effect

Pending Publication Date: 2017-08-11
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of soil conditioner is a simple and effective measure to effectively repair and fertilize red soil. However, the soil conditioners in the current agricultural materials market are mainly alkaline substances such as lime and dolomite powder. Application will lead to soil compaction, causing leaching of potassium, magnesium and other nutrients in the soil, thus accelerating the nutrient imbalance in the soil

Method used

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  • Nutritional type composite soil conditioner for improving acidity and application thereof
  • Nutritional type composite soil conditioner for improving acidity and application thereof
  • Nutritional type composite soil conditioner for improving acidity and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, prepare composite soil conditioner of the present invention

[0036] Weigh each component according to the following mass percentages:

[0037] Urea (N 46%) 20%, calcium phosphate (P 2 o 5 24%) 21%, potassium sulfate (K 2 O 50%) 20%, magnesium oxide (MgO) 9%, granular sepiolite (1.0-2.0mm in particle size) 20%, and granular perlite (1.0-2.0mm in particle size) 10%.

[0038] Mix the above-mentioned components evenly to obtain the composite soil conditioner of the present invention.

Embodiment 2

[0039] Embodiment 2, the performance test of composite soil conditioner of the present invention

[0040] The present embodiment provides the comparative test data of evaluation compound soil conditioner of the present invention and nitrogen, phosphorus and potassium fertilizer:

[0041] The soil conditioner prepared in Example 1 is used for the following comparative tests. The test of this embodiment is carried out in the farmland of large planters in Qiyang County, Hunan Province. The soil-forming parent material of the red soil in this place is Quaternary red soil. Blank treatment (CK) is no fertilization treatment, and the base fertilizer applied by the test group is the soil conditioner prepared by the embodiment of the present invention 1, and the base fertilizer applied by the control group (NPK) is nitrogen, phosphorus and potassium fertilizer (the content of N, P and K is respectively N 15%, P 2 o 5 15% and K 2 O 15%).

[0042] Test site: Qiyang County, Hunan Pro...

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Abstract

The invention discloses a nutritional type composite soil conditioner for improving acidity and application thereof. The composite soil conditioner is prepared from, by mass, 20% of urea, 21% of calcium phosphate, 20% of potassium sulfate, 9% of magnesium oxide, 20% of sepiolite and 10% of pearlite, the sepiolite is granular, the particle size of the sepiolite is 1.0-2.0 mm, the pearlite is granular, and the particle size of the pearlite is 1.0-2.0 mm. The composite soil conditioner can obviously improve the soil nutrient content, and especially can remarkably improve the content of quick-acting nutrients such as alkali-hydrolyzable nitrogen, quick-acting phosphorus and quick-acting potassium in soil. The composite soil conditioner can improve the soil acidity and can increase crop yield. Therefore, the composite soil conditioner can be widely applied to a red soil farmland crop system, and the popularization and application prospect is wide.

Description

technical field [0001] The invention relates to a soil conditioner and its application, in particular to an acid-improving nutrient compound soil conditioner and its application. Background technique [0002] The red soil area in southern my country covers an area of ​​2.18 million square kilometers, accounting for 22.7% of the total land area of ​​the country. It is an important grain and oil production base in my country. From the perspective of soil genetics, red soil is a highly developed soil under the influence of tropical and subtropical climates. Acidity, thinness, stickiness, and board are the basic primitive characteristics of red soil. However, due to long-term unreasonable fertilization and other management factors, the acidification of red soil has been serious in the past 30 years, which has further intensified the acidity of the already fragile red soil, and further highlighted the barrenness and lack of nutrients such as calcium and magnesium, which seriously...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B7/00C05G3/80C05C9/00C05D1/02C05D3/00C05D9/00
Inventor 徐明岗文石林周海燕周世伟孙楠
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI