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- Leached Nitrate in Vegetable Field Under Different Water and Nitrogen Fertilizer Management Practices 不同水氮管理对蔬菜地硝态氮淋洗的影响
- Keywords Aerobic rice;irrigation and nitrogen fertilizer;water ues efficiency;nitrogen ues efficiency;water and nitrogen coupling effects; 旱稻;不同水氮管理;水分利用效率;氮素利用效率;水氮耦合效应;
- Water and Nitrogen Utilization and Apparent Budget of Soil Nitrogen under Different Types of Nitrogen Fertilizer and Different Application Rates in Summer Maize 不同类型氮肥与施氮量下夏玉米水、氮利用及土壤氮素表观盈亏
- water and nitrogen fertilizer 水肥
- Keywords farm;soil moisture;precision irrigation;forecast technique;macropore flow;spatial variability;water and nitrogen fertilizer interaction coupling effects;decision support systems; 农田;土壤水分;精确灌溉;预报技术;大孔隙优先流;空间变异理论;水肥耦合效应;决策支持系统;
- This paper analyzed the yield performance by applying different quantity DCD and nitrogen fertilizer in water field and dry field. 分析了水田和旱田应用双氰胺(不同用量+氮素)的增产效益。
- The effect of potassium increased with increasing yield and nitrogen fertilizer. 钾肥效应随着产量和施氮量提高而增大。
- The total phosphorus requirement is relative to the potential of soil phosphorus and nitrogen fertilizer application. 总磷需求量与土壤磷潜力和施用氮肥有关。
- Use the SPAD-502 chlorophyll meter to rapid,on-farm analysis crop chlorophyll status and nitrogen fertilizer recommendation. 摘要 利用叶绿素仪SPAD-502进行田间快速测定,并对作物进行氮肥推荐。
- The Effects of Cutting Frequency, Seeding Ratio and Nitrogen Fertilizer Level on the Yield of Mixture Pasture of the Hemarthria compressa and Trifolium repens. 刈割频度、播种比例和施肥量对牛鞭草和白三叶混播草地牧草产量的影响。
- The effect of nitrogen fertilizer kind and dose on nitrogen migration, leaching loss and nitrogen utilization rate by rice in purple soil was studied in percolating pools. 摘要 利用养分渗漏池研究了紫色土中氮肥品种、用量对氮素移动、淋失和水稻氮肥利用率的影响。
- The coupling effect of water and nitrogen (N) of cotton under plastic mulching by drip irrigation was studied in Southern Xinjiang. 摘要 在南疆气候条件下，研究了膜下滴灌棉花水氮耦合效应。
- Chemical analysis, however, revealed that foliar water and nitrogen contents were similar between these two host plant species. 总之，本研究发现所用的两个水青蛾族群仅以枫香为食，是否所有族群或整个物种均是如此，还需采集及验证其他族群才可证明。
- Laboratory experiments were conducted to study the effects of fertigation strategies on water and nitrogen distribution from a surface point source of ammonium nitrate. 以一种砂粒含量高达95%25的砂土为对象,开展了滴灌施肥灌溉条件下,灌水器流量、灌水量和系统运行方式对水分、硝态氮和铵态氮分布影响的室内试验。
- To evaluate the effects of foliage quality on insect feeding performance, leaf tissues from all plant species were collected and assayed for water and nitrogen contents. 结果显示夹竹桃天蛾在这三种夹竹桃科植物上的取食表现显著的不一样，食用软枝黄蝉树叶的幼虫全部死亡；
- All plants need water and light. 所有的植物都需要水和阳光。
- Field trials of rainfall simulation were carried out to study effects of different rainfall intensities and nitrogen fertilizer application rates on nitrogen losses in rice-wheat rotation of Taihu Lake Watershed. 摘要应用田间模拟降雨，研究了太湖流域稻麦轮作方式下，不同雨强和施氮水平对农田氮素径流流失的影响。
- Salt water and absence wash away love. [谚]远航久别恩情疏。
- Iron reacts with water and air to produce rust. 铁与水和空气起化学反应而生锈。
- Seeds need water and warmth to germinate. 种子发芽需要水和温度。
