Spacer method in use for paddyfield fertilizer experiment

Abstract

A spacing method for the fertilizer applying experiment in rice field features that the plastic film covered bamboo frame is inserted in the rice field to form an isolating wall. Its advantages are high isolating effect, low cost and enough height.

Description

technical field [0001] The present invention relates to interval techniques for fertilizer testing in rice fields. Background technique [0002] In the paddy field fertilizer experiment, in order to block the interdiffusion of fertilizers with different treatments in each area, it is necessary to space out the fertilizers of various treatments. [0003] Usually, the soil of the paddy field is used as a ridge to realize the spacing. This requires digging the soil of the test site. Since the excavated soil is mainly the plow layer, the soil migration caused by the soil extraction process will reduce the fertility of the test soil to a certain extent, which will affect the test results. In addition, due to the immersion of the water layer, the subsidence of the soil ridge is also relatively common. The subsidence of the soil ridge weakens the function of preventing fertilizer from spreading. Once the soil ridge sinks below the water surface, or the water level rises above t...

AI Technical Summary

Problems solved by technology

Its advantage is that it avoids the problem of fertility decline caused by the migration of soil in the cultivated layer. However, the width of wooden boards and plastic boards is relatively narrow, generally less than 25cm, which is much smaller than the thickness of the cultivated layer of paddy fields plus the thickness of the mud surface water layer, so When they are used for intervals, the height is too short to withstand the fluctuation of factors such as rising water level or rain, the effect is often not ideal, and the economic cost is high

In addition, there is a non-technical problem, which is that the wooden and plastic boards used for spacing are relatively easy to steal, which makes the fertilizer experiment useless.

[0005] To sum up, in the existing paddy field fertilizer spacing technology, the soil ridge spacing has the problems of reduced fertility due to migration of soil, easy subsidence of the soil ridge, and high labor and labor intensity; while the spacing of wooden boards and plastic boards has the problem of blocking height. Low cost, high cost of materials and easy to be stolen

These problems have directly affected the results and efficiency of fertilizer experiments.

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