Some Improvement in Physical Properties of Paddy Soil Mixed with Soil Conditioner and Erosion Control Effects

掺入土壤调理剂对水稻土物理性质的一定改善及侵蚀防治效果

基本信息

批准号：
02660236
负责人：
TAKUMA Katsutoshi
金额：
$ 1.34万
依托单位：
Tottori University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02660236/
关键词：
Soil conditioner Soil physical property Soil aggregate Improvement of paddy soil Permeability Erosion control 土壌改良土壌固粒土壌団径

项目摘要

Heavy clayey soil has such a large amount of cohesion that the farmland is often hard to cultivate, and this is also apt to cause a drop in the trafficability. It is possible to improve the physical properties of heavy clayey soil or ordinary paddy soil by mixing it with a soil conditioner to use the paddy field as an ordinary field. The other purpose of this paper to deal with erosion control problems by means of soil conditioners.The clay fraction of samples of the soil ranges from 25 to 65%. And three types of soil conditioner on sale at a store are tested as follows : HAIDORARU ; LAND LIFE ; SOILTER. In any case, soils that are mixed with a soil conditioner tend to form aggregate. Different clay fractions have different aggregate formation effects. Soil aggregated structure development is useful in improving the physical properties. The effect of soil conditioners all samples is not the same. The permeability after treatment is found to be one of the most substantial improvements.Rainfall erosion experiments have shown that there is a decrease in the splash rate and the soil loss due to soil aggregate formation and permeability improvement, which fact results from the mixing of such soil with a soil conditioner. In some cases, an increase in the splash rate of such soil tends to occur. This means that the aggregates size could be in agreement with that of what are most likely to disperse as a result of soil aggregate formation. Addition of soil conditioners always leads to some extent. No erosion control of farmland can be achieved only by addition of the soil conditioner. It is necessary to improve farmland soil at the same time.

重粘性土的粘聚力很大，导致耕地往往难以耕种，也容易造成通行性下降。通过与土壤调理剂混合，可以改善重粘土或普通稻田的物理性质，使稻田像普通田一样使用。本文的另一个目的是通过土壤调节剂来解决侵蚀控制问题。土壤样品的粘土含量为 25% 至 65%。对商店出售的三种土壤改良剂进行了测试，如下：HAIDORARU；陆地生活；沾污者。无论如何，与土壤改良剂混合的土壤往往会形成团聚体。不同的粘土组分具有不同的骨料形成效果。土壤团聚结构的发育有助于改善其物理特性。所有样品的土壤改良剂的效果并不相同。处理后的渗透性被认为是最实质性的改善之一。降雨侵蚀实验表明，由于土壤团聚体的形成和渗透性的改善，飞溅率和土壤流失减少，这是由于这些物质的混合所致。使用土壤改良剂的土壤。在某些情况下，此类土壤的飞溅率往往会增加。这意味着团聚体的尺寸可能与由于土壤团聚体形成而最有可能分散的尺寸一致。添加土壤改良剂总是会产生一定程度的影响。仅添加土壤调理剂无法实现农田侵蚀控制。同时要改良农田土壤。