Method for resisting water in soil of field experiment plots

A test plot and soil technology, applied in the field of agricultural scientific research, can solve the problems of destroying the natural structure of the soil, affecting the progress of the test, inconsistency, etc., and achieving the effects of ensuring soil characteristics, improving objectivity, and low production costs

Inactive Publication Date: 2011-07-06
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology

There is a major defect in this method: that is, the natural structure of the soil is completely destroyed during the operation, and the physical and chemical properties of the soil such as bulk density, porosity, and enzyme activity are changed, and the soil quality is also seriously changed by turning the soil up and down. The soil fertility

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  • Method for resisting water in soil of field experiment plots
  • Method for resisting water in soil of field experiment plots
  • Method for resisting water in soil of field experiment plots

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Embodiment

[0036] 1) A relatively flat cultivated farmland in Matiyingzi Village, Fuxin County, Liaoning Province was selected as the experimental field, and the area of ​​each experimental plot was 1.2m 2 (1.2m×1m), the test field is determined to be 152m 2 (Length 19m×width 8m), and the east-west direction is the long side direction, and the north-south direction is the broad side direction. In the selected area, use the soil drilling method to test the soil in the 0-140cm soil layer, the distance between the measuring points is 2m×2m, measure the soil texture, and exclude the hourglass or sand pit points;

[0037] 2) According to the test requirements, the field in step 1) is divided into 90 test plots, each with an area of ​​1.2m 2 (1.2m×1m), 15 plots per row, 6 rows in total. Calculate the row spacing of the test plot, the most middle row spacing is 40cm (as the main channel in the test process), the row spacing on both sides is 30cm, the remaining four row spacing is 25cm, the zo...

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Abstract

The invention relates to a method for resisting water in soil of field experiment plots. The method comprises the following steps: (1) determining the total length and the total width of a test field according to the required area of the experiment plots and the length-width ratio of the experiment plots; (2) determining the line space and plot space of each plot according to the step (1); (3) removing the soil between every two lines and between every two plots in the step (2); (4) arranging water-resisting layers among the experiment plots in the step (3), and back filling the removed soil; (5) leveling and compacting the soil between every two lines and between every two plots of each test plot in the step (4); (6) leveling the surface of each test plot in the step (4) and compacting the contact sites between the experiment plots and the water-resisting layers; and (7) covering soil layers which can prevent wind erosion and solar radiation-caused aging and prevent being broken during work onto the water-resisting layers in the step (4). The method provided by the invention does not disturb the field soil, and ensures the natural field soil characteristics, and the objectivity of the experimental study is improved. The materials are easily accessible, and the fabrication cost is low.

Description

technical field [0001] The invention relates to the field of agricultural scientific research, in particular to a method for soil water isolation in a field test plot. Background technique [0002] my country's agricultural water use accounts for more than 60% of the total amount of water used in water resources, of which 90% is used for planting irrigation. At present, the low effective utilization rate of agricultural water in my country is mainly caused by the low production level of agricultural irrigation water. Therefore, soil-plant system water research is an important content in the field of agricultural research. However, due to the difficulty in controlling the soil moisture in farmland (affected by factors such as drought and precipitation), the research results on moisture in the soil-plant ecosystem vary widely. How to improve the quality of the field experiment research platform has become an important way to improve the accuracy of the in-depth research concl...

Claims

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Application Information

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IPC IPC(8): A01G25/00
Inventor 尹光华张法升刘作新亢振军王振营
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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