Study on kinetics of phosphorus adsorption onthe surface of organo - mineral colloidalcomplex in purple paddy soil 紫色水稻土有机无机复合胶体表面磷吸附的动力学研究
Distribution and origins of polycyclic aromatic hydrocarbons in a soil profile containing 6 000 - year old paddy soil 000年以来水稻土剖面中多环芳烃的分布特征及来源初探
The organic combination state in selenium - rich red earth and that in rice soil are the main combination patterns 富硒红壤和富硒水稻土中的有机结合态硒是土壤中的主要结合态。
Influence of parent materials on paddy soil hyperspectral characteristics and som spectral - parameter - models 成土母质对水稻土高光谱特性及其有机质含量光谱参数模型影响的初步研究
Effects of flooding on iron transformation and phosphorus adsorption - desorption properties in different layers of the paddy soils 水稻土淹水过程中不同土层铁形态的变化及对磷吸附解吸特性的影响
Straw incorporation in to the soil after harvesting may maintain the fertility of paddy soil , but ways of returning influence the manipulation of harvesting machines 稻草还田可以保持水稻土的肥力，但还田的方式影响到机械的操作。
The objective of this study is to compare the effect of three ways of straw incorpration on some physical and chemical properties and the growing of rice 本研究的目的是比较几种不同的稻草还田方式对水稻土某些物理、化学性质以及对水稻生长的影响。
Because of alkaline calcareous nature of soils , availability of micronutrient is a problem , particularly zn in rice soils , cu and zn in citrus and fe in apples 因碱性石灰性土壤的特性，微量养分有效性不高，特别是水稻土中缺锌，柑桔园中缺铜缺锌和苹果园中缺铁。
The sampling area lies in jiangjin city , where is undulating topography , purple soil and paddy field soil account for most of its soil types , the status of land use are paddy and dry land 本次试验的采样区位于江津市，为低山丘陵地貌，土壤类型主要为紫色土和水稻土，土地利用现状主要为水田和旱地。
Furthermore , corresponding countermeasures were put forward . 4 . seven types of soil , yellow soil , purple soil , red soil , limestone soil , and alluvial soil and paddy soil are scattered in this district 该区有黄壤土、紫泥土、红壤土、黄棕壤土、石灰岩土、冲积土、水稻土等7个土类，其中黄壤占总面积的80以上。
