The improvement of mineral soil by super deep plowing and its influence on the yield

超深耕改良矿质土及其对产量的影响

基本信息

批准号：
62480074
负责人：
ISOZAKI Hisashi
金额：
$ 4.29万
依托单位：
Gifu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62480074/
关键词：
Deep plowing Penetration test Measurement of pF-soil moisture curve Measurement of the three phase distribution of soil Solid ratio Measurement of hydraulic conductivity of saturated soil Consistency test 塑性限界三相分布 pF値バックホ-リッパエン

项目摘要

In 1987 we set up three experimental fields in Toyohashit Aichi-ken: 1) 1.5 meter super deep ploving plot 2) 1.0 meter deep ploving plot 3) Customary plot and did dynamic penetration test, static penetration test as well as soil hardness test. As a result it is confirmed that in the super deep and deep plowing plot the measurement value vas extremely low compared with the customary plot. Also it became clear from the measurement of pF-soil moisture curve and the measurement of the three phase distribution of soil that macro pore and air ratio increased by deep plowing and solid ration decreased. This influence also appeared on the result of the penetration test i.e. the value increased extremely in the super deep plowing plot deep plowing glot. The result of the particle test showed that in contrast to the multi stratification of the customary plot, the particle component equalized in 1.0 meter and 1.5 meter deep plowing plot in all strata. Also the consistency test revealed that while … More in the customary plot the liquid limit and the plastic limit changed according to the depth and correspond with the stratification of the particle size distributions the change of the value were few in the 1.5 meter deep plowing plot.From the view point of chemical side of soil, though the many type of effective components were extremely unequalized just after the deep plowing treatment it was gradually equalized in accordance with the strata with the lapse of time. This was especially remarkable in the super deep plowing plot. In the super deep plowing plot, high density distribution pattern of many type of effective components appeared somewhere around 90 - 100 centimeter area. Also the illuviation from the result of declination of fine particle of soil could be found.The result of the yield test of cabbage done in 1988 - 1989 showed the yield became bigger in order of 1) super deep plowing plot - 1.5 meter 2) deep plowing plot - 1 meter 3) customary plot From the above it is clear that the deeper the plowing the more yield could be expected. Less

1987年，我们在toyohashit aichi-ken中设置了三个实验领域：1）1.5米超深ploving图2）1.0米深插槽图3）习惯地块并进行了动态穿透测试，静态穿透测试以及土壤硬度测试。结果，可以证实，在超深和深耕作图中，与习惯图相比，测量值VAS极低。同样，从PF-ZOIL水分曲线的测量以及土壤的三相分布的测量中也可以清楚地看出，宏孔和空气比通过深层耕作和固体量降低了。这种影响也出现在渗透测试的结果上，即在超深的耕作图中极高的斑块斑块中的值极高。粒子测试的结果表明，与习惯图的多分层相反，粒子成分以1.0米和1.5米深的耕作图在所有stratta中均等。一致性测试还表明，在习惯图中，液体极限和塑性极限根据深度的分层发生了变化，并且与粒径分布的分层相对应，但在1.5米深的耕作图中，该值的变化很少。从土壤的化学侧面角度来看，除了多种类型的有效组件之后，与耕种的处理非常平均相同，但与逐渐平衡的是，逐渐相处得以稳定。这在超深的耕作情节中尤其引人注目。在超深的耕作图中，许多类型的有效组件的高密度分布模式出现在90至100厘米的区域。同样可以发现土壤细粒子偏差的结果。 1988年至1989年进行的卷心菜的产量测试的结果表明，收益率更大1）超深耕作地块-1.5米2）深耕作图 - 1米3）习惯地图，从上面开始，很明显，耕作越深，预期的耕作越深。较少的