红壤

In this paper the indoor simulation test is adopted to study the variation characteristics of soil pH, the rate of corn straw degradation and enzyme activity on brown rendzina in karst area and laterite in non-karst area in the degradation process of corn straw.

通过室内模拟试验，研究了岩溶区棕色石灰土与非岩溶区红壤对玉米秸秆有机物料降解过程中土壤pH值、秸秆降解率和酶活性的变化特征。

When SWC was kept in 60% to 75%, quality of satsuma mandarin fruit and the flavor or taste of fruit was all improved.

保持红壤含水量60%-75%的范围，即可增加柑橘果实中品质成分的含量，又可提高果实的口感。

In this study, 2-year pot seedlings of satsuma mandarin Citrus unshiu Marc.cv.

本文以第四纪红黏土发育的红壤、2年生宫川温州蜜柑Citrusunshiu Marc。

Red soil ; Satsuma ; Application ; Phosphorus ; Potassium ; Calcium ; Lime requirement

红壤；温州蜜柑；施肥；磷；钾；钙；石灰需用量

The problem and direction of development andutilization of red soil sloping land were put forward.

并且提出了红壤坡地开发利用中应注意的问题和发展的方向，主要结论如下

Stylo is one of the most important forage legumes in tropical and subtropical area, and well adapted to low-phosphorus acid soils. However, its physiological mechanisms in adaptation to low- P acid soils have not been well studied.

柱花草是世界热带、亚热带地区广泛种植的高产豆科牧草之一，对酸性低磷红壤具有较好的适应性，但其适应性机理尚不清楚。

In this study, 12 stylo genotypes were surveyed under field conditions with or without P application for P efficient screening, and then sand and nutrient solution culture experiments were subsequently conducted to further demonstrate possible physiological mechanisms of stylo in adaptation to low-P acid soils.

本试验选用十二种不同基因型柱花草作为研究对象，通过田间试验对供试材料进行磷效率初步筛选，并在此基础上进行随后的砂培和水培试验，对不同基因型柱花草适应酸性低磷红壤的机制进行了初步的探讨。

The leaching and vertical moving of 125 I in subtropics soils of south China were studied by soil volume.

采用玻璃土柱法研究了125I在华南地区砖红壤和水稻土中的淋溶和垂直迁移。

However the addition order of tartrate and phosphate on activity of enzyme adsorbed by goethite produced the greatest impact.

胶体表面类型（硅氧烷表面或羟基化表面）及阴离子配体对胶体表面负电荷的贡献量在酶的吸附及活性保持中的重要性；B阴离子配体后加入时酶的吸附量一般比配体先加入时的高；C）配体加入顺序对二氧化锰的影响最显著，对砖红壤和高岭石的居中；对针铁矿的次之；对黄棕壤的最小。D）乙酸或草酸加入顺序对高岭石上固定化酶比活性的影响最大，而酒石酸或磷酸则对针铁矿影响最大。

This uncultured production mode can not satisfy the need of society development along with the progress of society and the increase of population.

随着社会的进步和人口的增多，这种落后的生产方式越来越不能满足社会发展的需要，因此，需要寻找一种适合南方红壤地区的旱地耕作模式，以提高土壤的降水入渗能力、贮水保墒能力，最终达到提高生产效率。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。