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.

泥土土壤具有很大的凝聚力，以至于农田通常很难种植，这也很容易导致流量下降。通过将其与土壤调节剂混合以将稻田用作普通田的混合，可以改善重粘土土壤或普通稻土的物理特性。本文通过土壤调节剂处理侵蚀控制问题的另一个目的。土壤样品的粘土部分范围为25％至65％。在商店销售的三种类型的土壤护发素测试如下：Haidoraru；土地生命；土壤。无论如何，与土壤护发素混合的土壤倾向于形成骨料。不同的粘土馏分具有不同的骨料形成效应。土壤聚集结构的发展有助于改善物理特性。土壤调节剂的影响所有样品都不相同。发现治疗后的渗透性是最实质性的改善之一。降临的侵蚀实验表明，由于土壤骨料形成和渗透率的改善，飞溅速率和土壤损失降低，事实是由于这种土壤与土壤调节剂的混合而导致的。在某些情况下，这种土壤的飞溅速率会增加。这意味着聚集体大小可能与土壤骨料形成最有可能分散的大小一致。土壤调节剂的添加总是在一定程度上导致。只有通过添加土壤护发素才能实现农田的侵蚀控制。有必要同时改善农田。