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- Influence of rare eatrth elements on chemical transformation of nitrogen in agricultural soil. 施加外源稀土元素对土壤中氮形态转和有效性的影响。
- The Environmental Capacity of Copper, Zinc, Nickel in Agricultural soil in Nanhai, Guangdong. 广东省南海市农业土壤中铜锌镍的环境容量
- Paraquat polluted experiment on the agricultural soil animal be taken in this project. 应用克无踪农药对农田生态系统土壤动物进行污染模拟实验。
- Organic acids are normal constituents of most agricultural soils. 有机酸是大多数农业土壤中通常的组分。
- The loss of bioavailable phosphorus (BAP) from agricultural soil to surface waters in runoff can accelerate the eutrophication of receiving waters. 本文通过模拟降雨径流实验,运用两种生物可利用磷(BAP)的化学浸提方法,在1。
- Scientists in West Country, mainly in US and Canada, are seeking to sequester C in agricultural soil (C sink) to offset their commitment to the Kyoto act. 以美国和加拿大为代表的发达国家正在热衷于研究农业土壤作为大气CO2 的“汇”。
- Gao Z L,Chen X P,Zhang F S et al.Continuous-automatic method for measuring N2O emission from agricultural soil[J].Plant Nutrition and Fertilizer Science,2005,11 (1):64-70. [4]高志岭;陈新平;张福锁;等.;农田土壤N2O排放的连续自动测定方法[J]
- Agricultural soils are the ultimate recipient and depository of most applied foliar and soil pesticides. 喷撒于叶面和用于土壤的农药大多以农业土壤为其最终受体和贮存场所。
- It suggests that the environmental exposure of DDT can be exsressed as the actual content of DDT in agricultural soil which should be equal to the sum of both the application of DDT and its residu- al accumulation in the same year. 本文提出滴滴涕(DDT)的环境接触量可用农田土壤DDT的实际含量来表示,此量应等于当年的施用量与土壤中累积的残留量之和。
- Using the method of fuzzy cluster analysis, the scientific evaluation and classification were given to the two hundred and sixty pieces of agricultural soil resources in two villages and six towns of Longjing City in Jilin Provice. 摘要利用模糊聚类分析方法对吉林省龙井市6镇、2乡的260块农用土地资源进行了科学的评价与分类。
- The distribution of the heavy mental elements (HMEs) in eluvial horizons, illuvial horizons and parent material horizons of 26 agricultural soil profiles in Hainan Island was studied. 采用现场采样及室内分析测试方法,对海南岛26个农业土壤剖面淋溶层、淀积层、母质层中7种重金属元素的分布特征进行研究。
- The main agricultural soils in Changge city were comprehensively evaluated by using the technology of GIS and SPSS. 运用GIS和SPSS技术 ,对河南省长葛市主要农业土壤肥力进行综合评价。
- Understanding spatio-temporal variability of exchangeable potassium(K) in agricultural soils plays a key role in improving the quality of agricultural soil and products. 作者单位:土壤与农业可持续发展国家重点实验室中国科学院南京土壤研究所;
- K.Zhang, S.Li, W.Peng and B.Yu: Erodibility of Agricultural Soils on the Loess Plateau of China. 彭文英,张科利,江忠善:黄土高原坡耕地退耕还草的水沙变化特征。
- The empirical equation W=ASB was used to fit water holding capacity of four kinds of agricultural soils in loess Plateau. 黄土高原四种主要农业土壤的水分特征曲线并无明显的平台或拐点产生,其关系能够很好地用Garden经验方程(W=AS~(-B))进行拟合。
- These deposits help build agricultural soils in the Bahamas and supply nutrients for plants in upper canopies of rain forests in Brazil. 这些基础帮助巴哈马群岛建立农业土壤和巴西供应植物养分的热带雨林。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- The P sorption index(PSI)and the degree of P sorption saturation(DPSS)have been suggested as indicators for the risk of P loss from agricultural soils. 土壤对磷具有一定的固定能力,可以采用土壤磷吸持指数(PSI)和吸持饱和度(DPSS)来表征土壤中的磷向水体释放的风险。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?