purple paddy soil

基本解釋

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(zhǎng)期定位試驗(yàn)點(diǎn)的紫色水稻土為研究對(duì)象，研究了耕作制度對(duì)紫色水稻土活性有機(jī)質(zhì)和碳庫(kù)管理指數(shù)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姜黑土、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(guò)田間試驗(yàn)和土壤培養(yǎng)試驗(yàn)研究了紫色水稻上有效硅含量的概況，影響因素及施硅效應(yīng)。