您要查找的是不是：
- Mehlich 3 (M_3), Olsen, Bray 1, Bray 2, and Ammonium Acetate (AA) were compared to select an extractant both suitable for extracting P and K from acid and calcareous paddy soils in Guangdong. 用Mehlich 3(M_3)、Olsen、Bray 1、Bray 2和醋酸铵(AA)对广东主要水稻土的有效磷、钾进行测定比较。
- INVESTIGATIONS ON NITROGEN LOSSES FROM FERTILIZERS APPLIED TO FLOODED CALCAREOUS PADDY SOIL 石灰性稻田土壤上化肥氮损失的研究
- Calcareous paddy soil 石灰性水稻土
- Effects of oxyfluorfen on the anaerobes in paddy soil were studied. 探讨了各种浓度的果尔对水稻土中厌氧细菌群的影响。
- Fig.4 The possibly engender range of cold spring paddy soil by predicted. 现有冷浸田分布范围；2、预测可能增加的冷浸田范围；
- Changes of soil chemical properties after transferring acid sulfate paddy soil to upland soil. 酸性硫酸盐土水改旱后土壤化学性状的变异初报。
- Phosphorus loss with runoff from a side bleaching paddy soil under continual P application in Taihu Lake Region. 太湖地区侧渗水稻土连续施磷处理下稻田磷的径流损失
- Rice paddy soil has oxic-anoxic interfaces where methane consumption and ammonia oxidation might happen simultaneously. 稻田生态系统中存在着好氧微域,其中同时发生甲烷氧化和铵氧化。
- The order of Df (desorption factor) value was: yellowish red soil>silt-loamy soil>kaoline>perlite>paddy soil (loamy clay) >kieselguhr. 解吸因数的大小排列顺序为:黄红壤、粉泥土、高岭土、珍珠岩、青紫泥、硅藻土。
- The correlation didn't reach significant level. 0.2 molL-1 K2SO4 wasn't the suitable available Se extractant for paddy soil. 2 molL-1 K2SO4对土壤硒的浸提量低,与植株含硒量间的相关性不显著,不适宜作水稻土有效硒的提取剂。
- Results showed that the amounts of bacteria, fungi and actinomycetes in paddy soil in CRNF treatment were higher than those in CK treatment. 结果表明，短期施用控释氮肥稻田土壤的细菌、真菌和放线菌数量明显高于不施氮处理；
- The paddy soil probably had a long history of tillage, and furthermore it had formed gley horizon and illuvium, but its fertility was not high either. 水稻土有较长耕作历史，并已形成了潜育层和潴育层，但土壤肥力并不高。
- Mefenacet disappeared more quickly in paddy soil than in glebe, revealing that its disappearing processes were different. 水田条件下苯噻草胺消失速率比旱田条件下快，但消失类型不同。
- Ma T S.The research on the silicon nutrient of paddy soil and using silicon fertilizer in china[J].Prog.Soil Sci.,1990,18(4):1-5. [4]马同生.;我国水稻土硅素养分与硅肥施用研究状况[J]
- The apparent qualities of crude tobaccos of different varieties inthe improved paddy soil were totally better thanthat in paddy soil. 不同品种在改良水稻土中的原烟外观质量总体好于其在水稻土中的。
- Li L, Hu L F, Chen F, Xiao X P, Yang G L.Effects of different long-term fertilization on emission of CH4 and N2O from paddy soil. 李琳;胡立峰;陈阜;肖小平;杨光立.;长期不同施肥类型对稻田甲烷和氧化亚氮排放速率的影响
- Adsorption of Prochloraz and its major metabolites,BTS44595,BTS44596 and BTS45186,in six types of paddy soil were studied with the batch equilibrium method. 用批量平衡法研究了咪鲜胺及其三种主要代谢物BTS44595、BTS44596和BTS45186在六种水稻土中的吸附。
- After introduction of the heavy metals into the paddy soil, the downwards migration was 45 cm and 30 cm depth for Cd and Cu respectively regardless of the doses. 外源重金属元素Cd、Cu施入土壤后,无论是低剂量还是高剂量处理,水田土壤Cd元素已迁移到45cm的深度,而Cu元素迁移到30cm的深度。
- The influence of forms of nitrogen fertilizers and soil moisture on the transformation of external Cd in the paddy soil was investigated through laboratory incubation experiment. 作者单位：中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室;
- Although rhizosphere nitrification happened in red paddy soil was very weak, it might be important for rice growth and N nutrition at the seedling stage. 尽管红壤水稻土硝化作用很弱，但红壤区水稻根际硝化作用与水稻苗期生长和氮素营养密切相关。
