Method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions

A technology for hills and land, applied in land preparation methods, botanical equipment and methods, agricultural machinery and implements, etc., can solve the problems of inability to plant and use, low degree of soil maturity in the plough layer, poor soil fertility, etc., to improve permeability. , strong soil adaptability, and the effect of accelerating the accumulation of organic matter

Inactive Publication Date: 2014-08-13
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a solution to the problem that a large amount of barren land newly reclaimed due to the need for the balance of cultivated land occupation and compensation in the southern hills and mountainous areas of my country currently cannot be used for normal agricultural planting due to the low maturity of the cultivated layer soil and extremely poor soil fertility. An efficient, simple, and easy-to-use comprehensive soil improvement method for rapidly improving the soil maturity of the plow layer of newly reclaimed barren land

Method used

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  • Method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions
  • Method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions
  • Method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: (the ripening improvement of the newly reclaimed barren soil plough layer soil in the gentle slope of Suichang River Valley, Zhejiang)

[0032] (1) Preparation for the reclamation of barren land: The following barren land in the southern region after reclamation according to the planning requirements will be taken as the object of improvement. The specific implementation site is Liujia Village, Xifan Township, Suichang County, Zhejiang Province. The gently sloping land in the river valley is leveled, and the surface is covered with a layer of about 30 cm thick guest soil as the plough layer soil for the newly reclaimed land. The guest soil is taken from the same mountain section. , using the soil improvement materials that meet the quality standards, the 10 mu of the newly reclaimed barren land is used to mature and improve the soil of the plough layer;

[0033] (2) Excavation of grid-shaped fertilization and planting trenches: In 2009, the above-mentioned...

Embodiment 2

[0041] Embodiment 2: (the ripening improvement of the newly cultivated barren land plough layer soil in the gentle slope of Suichang River Valley, Zhejiang)

[0042] In this example, the preparation and application of the mixture of fertilizer and water-retaining agent in step (3): the compound fertilizer, water-retaining agent and decomposed commercial organic fertilizer are prepared at a ratio of 550:180:20000 kg / ha; step (4) the ratio of ryegrass The first sowing, mowing and mulching: sowing on October 15, 2009, with a seeding rate of 25 kg / ha; from January 15, 2010 to May 30, 2010, during the entire ryegrass growing period, a total of 4 The second mowing, the first season ryegrass growth ended on June 25; Step (5) Sowing, mowing and mulching of the second year ryegrass: The second season was sown on October 15, 2010; and in 2011 On June 30, 2019, the newly cultivated land plough layer soil improved by planting two-season ryegrass was ploughed, and the surface was leveled; ...

Embodiment 3

[0046] In this example, the preparation and application of the mixture of fertilizer and water-retaining agent in step (3): the compound fertilizer, water-retaining agent and decomposed commercial organic fertilizer are prepared in the ratio of 650:200:18000 kg / ha; step (4) the ratio of ryegrass The first sowing, mowing and mulching: it was sown on October 20, 2009, with a seeding rate of 28 kg / ha; and from January 15, 2010 to May 30, 2010, a total of Carry out 3 times of mowing until the growth of the first season ryegrass ends on June 25; Step (5) Second sowing, mowing and mulching of ryegrass: the second sowing was carried out on October 20, 2010; And on June 30, 2011, the newly reclaimed land plough layer soil improved by planting the second-season ryegrass was ploughed, and the surface was leveled;

[0047] The physical and chemical properties of the soil in the plough layer before and after the improvement were sampled and analyzed, and the improvement results were obtai...

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Abstract

The invention discloses a method for rapidly improving plough-layer soil of newly cultivated barren lands in southern hilly and mountainous regions, belonging to the technical field of soil improvement. The method comprises the steps of cultivating the barren lands for preparation; digging latticed fertilizing and planting ditches; preparing and applying mixtures including a fertilizer and a water-retaining agent; sowing seeds of ryegrass for the first time, cradling and covering; sowing seeds of ryegrass next year, cradling and covering; and the like. The method disclosed by the invention is definite in step and simple and feasible in process, after two years continuous integrated improvement, the soil bulk density is reduced, the void fraction is increased, the level of nutritive substances such as organic matters, total nitrogen, quick-acting nitrogen, phosphorus and potassium is improved obviously, the plough-layer soil can reach a medium fertility level, and normal agricultural utilization can be carried out. The method can be popularized and applied in newly cultivated barren lands in southern hilly and mountainous regions of China.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a comprehensive improvement method for rapidly maturing plough layer soil by using newly cultivated barren land in hills and mountains in southern my country. Background technique [0002] my country's arable land resources are in short supply, and the per capita arable land area is at a low level in the world. In recent years, my country's social economy has developed rapidly, and the speed of urbanization is unprecedented. In the process of urbanization construction, a large amount of agricultural arable land has been converted into urban construction land, and the area of ​​agricultural arable land has been continuously reduced. In order to ensure food security and the basic needs of agricultural production, the state has introduced strict measures to protect cultivated land resources, and all regions have drawn red lines for the protection of cultivated land area. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G1/00
Inventor 王建红曹凯张贤吴林妃丁炳红郑纪慈
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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