您要查找的是不是：
- measuring soil fertilization 测土施肥
- It's an effective way to maintain soil fertility. 这是保持土壤肥力的一个有效办法。
- Rational soil fertilization could improve soil nutrition and leaves nutritious level. 本实验的施肥试验表明，合理的土壤施肥可以提高土壤营养和叶片营养水平。
- How do earthworms influence soil fertility? 蚯蚓如何影响土壤肥力?
- The principles and methods were introduced for measuring soil organic matter content with the aid of spectrum data diffusely reflected by the soil. 摘要阐述了利用有机质的反射光谱特性对土壤有机质含量进行测定的原理及方法。
- Fertilization based on measuring soil and filling the prescription 测土配方施肥
- The soil fertility shows a decrease trend in cornpea rotation. 玉米、豆轮作，土壤养分均呈下降趋势。
- Influence of thinning on soil fertility in artificial forests. 抚育间伐对人工林土壤肥力的影响。
- The Impact of Soil Fertility on the Yield of Phyllanthus Emblica L. 土壤肥力对余甘子产量的影响。
- A green manure is a crop grown mainly to improve soil fertility. 种植绿肥作物主要是为使土壤更加肥沃。
- Strip check space varies with plot slope, soil fertility and irrigation. 条畦宽度随地块坡度、土壤肥力和灌溉而变化。
- The paddy?upland system increased clay dispersion content and soil fertility. 水旱轮作可增加土壤黏粒含量,提高高沙土肥力水平;
- Fertilization could also increase soil enzyme activities, and soil urease and phosphatase activities could be used as the indicators of soil fertility. 施肥还可增加土壤酶活性，其中，土壤脲酶和磷酸酶活性可以作为衡量土壤肥力水平的指标。
- The status of soil aggregates is an important factor affecting soil fertility. 土壤团聚体和水稳性团聚体的状况是影响土壤肥力的一个重要因素。
- In this paper,the calibration measures of Time Domain Reflectometry (TDR) and Neutron Probe is discussed on basis of their theories and methods of measuring soil water content,and the processes of calibration experiments are described in detail. 探讨了时域反射仪和中子仪测定土壤含水量的原理,并在禹城试验站对各自适宜的标定方法进行了试验。
- Amounts of nitrogen, phosphorus and potassium absorbed by hybrid rice varied with soil fertility, climatic condition, variety and fertilization managements. 杂交水稻吸收氮、磷、钾数量随着土壤肥力、气候条件、品种和施肥管理而变。
- Two basic microwave approaches are used to measure soil moisture, one is passive which is based on radiometry and the other is active and uses radar. 微波遥感测量上壤水分的方法主要分主动和被动两种,它们都是基于干燥土壤和水体之间介电常数的巨大差异。
- Wang W L,Liang Z S,Sun Q et al.Study on N,P fertilization model of Salvia miltiorrhiza in different soil fertility[J].Acta Bot.Boreal.-Occident.Sin.,2003,23(8):1406-1410. [6]王渭玲;梁宗锁;孙群;等.;丹参氮、磷肥效效应及最佳施肥模式研究[J]
- The ground calibration experiment for ESA s SMOS Mission will use an L-band radiometry to measure soil brightness temperature of Takelamagan Desert. 欧空局SMOS任务的塔克拉玛干沙漠地面定标实验,采用L波段微波辐射计测量塔克拉玛干沙漠的土壤亮温。
- YANG Shujun. Simply and conveniently measure soil organic matter with potassium dichromate oxidation method[J]. Modern Agriculture, 1997(40: 23. 杨树钧.;用重铬酸钾氧化法简便快速测定土壤有机质含量[J]
