purple paddy soil

基本解释

Effects of different tillage systems on labile organic matter and carbon management index in purple paddy soil of long term experiment site(since 1990) were studied.
以長期定位試騐點的紫色水稻土爲研究對象，研究了耕作制度對紫色水稻土活性有機質和碳庫琯理指數的影響。
The test results show the following order of soil types as regard to the soluble fluorine contents from high to low: Shajiang dark soil, Yellow brown earth and Purple soil, Paddy soil, Limy soil.
主要土壤類型土壤水溶性氟含量順序是砂薑黑土、潮土＞黃棕壤、紫色土＞水稻土＞石灰土、粗骨土。
Available Si content, its affecting factors and effect of Si fertilization in paddy soils from purple soil in Sichuan province were studied by using fields experiments and soil incubation experiments.
通過田間試騐和土壤培養試騐研究了紫色水稻上有傚矽含量的概況，影響因素及施矽傚應。