1)nitrogen dosage氮肥施用量
1.The effect of nitrogen dosage on starch content and key enzyme activity in composing starch in kernels of spring maize was studied.以不同品种春玉米为试验材料,研究氮肥施用量对春玉米子粒淀粉含量及淀粉合成关键酶活性的影响。
英文短句/例句
1.The Effects of the Amount and Time of Nitrogen Applied on the Quality and Yield of Rice;氮肥施用量施用期对稻米品质及产量的影响
2.Effect of Different Nitrogen Fertilizer Amount and Application Period on Wheat Quality氮肥施用量及施用时期对小麦品质性状的影响
3.Effcets of Different Nitrogenous Fertilizer to Photosynthesis and Yield in Maize;氮肥施用量对玉米光合特性及产量的影响
4.Effect of Nitrogen Fertilizer Amount on Yield and Quality in Rice不同氮肥施用量对水稻产量及品质的影响
5.Preliminary Studies on Effects of Application Amounts of Nitrogen Fertilizer on Yield of Cotton after Rape Cultivation不同氮肥施用量对油后棉产量影响试验初报
6.Effect of Nitrogen Fertilizer Rates on Yield and Economic Benefits of Lettuce氮肥施用量对生菜产量和经济效益的影响
7.The Effect of Nitrogen Fertilizer Application Rate on the Rice Quality in Different Varieties;氮肥施用量对不同类型品种稻米品质的影响
8.Present Situation Survey and Coping Strategies of the Effects of Nitrogen Fertilizer Rates in Fujian福建氮肥施用量的现状调查及应对策略
9.Effects of Different Amount of Applying N Fertilizer on the Agronomy Characters of Licorice(Glycyrrhiza uralensis Fisch.)不同氮肥施用量对甘草农艺性状的影响
10.The nitrogen utilization efficiency were downtrend with the amount of topdressing increased.随著施氮量增加，追施氮肥的利用率明显下降。
11.Study on the Application Effects of N,P and K Fertilizers on Rice and the Recommended Fertilizer Amount in Eastern Hubei鄂东水稻氮磷钾肥施用效果及推荐施肥量研究
12.Excessive application of nitrogen fertilizers results in tardy bearing.施用过量的氮肥结果使树延迟结果。
13.The Effect of Combined Application of Organic Manure and Chemical Fertilizers on Yield of Winter Wheat and Nitrogen Utilization肥料配施对冬小麦产量和氮肥利用效率的影响
14.The Effect of Nitrogen Application Stage and Amount on Growth and Yield of Rice氮肥施用时期及用量对水稻生长和产量的影响
15.Effects of Nitrogen Application Rate on Nitrogen Absorption,Translocation and Fertilizer-nitrogen Use Efficiency in Japonica Rice Cultivar Nanjing 44施氮量对南粳44氮素吸收运转及氮肥利用效率的影响
16.Influence of nitrogen fertilizer rate on carbon-nitrogen metabolism and nitrogen use efficiency of summer maize under high and medium yield levels施氮量对不同肥力水平下夏玉米碳氮代谢及氮素利用率的影响
17.Effects of N and P Fertilizer Applying Amount on the Yield in Hybrid Rice;氮肥与磷肥的施用量对杂交水稻大田产量的作用和影响
18.Effect of yield response and intaking nutritions of Chinese cabbage to excessive applying N,P and organic fertilizer过量施用氮磷和有机肥对大白菜产量和氮磷吸收的影响
相关短句/例句
Nitrogen-phosphorus application rate氮磷肥施用量
3)the maximum economic rate of N fertilizer application氮肥经济施用量
4)N-fertilizer application rate稻株氮肥施用量
5)Nitrogen application氮肥施用
6)N fertilizing amount氮施肥量
延伸阅读
氮肥施用“九不宜”一是铵态氮肥不宜与碱性肥料混用。因为混施后会产生氨气，降低肥料效果。常用的铵态氮肥有碳铵、硫酸铵等，碱性肥料有草木灰、石灰等。二是硝态氮肥不宜与有机肥混用。有机肥含有较多有机物，遇到硝态氮肥会在反硝化细菌的作用下发生硝化反应，损失氮素。常用的硝态氮肥有硝酸铵、硝酸钠、硝酸铵钙等。三是硝态氮肥不宜在田中施用。硝态氮肥在厌氧条件下，易被反硝化细菌分解造成氮素损失，降低肥效。旱地应禁止在大雨前后施用或施用后浇大水。四是尿素不宜浇施。因为施入土壤后，尿素经过土壤微生物的作用，会水解成碳酸氢铵，然后分解出氨而挥发。五是尿素不宜紧贴种子。尿素含有少量缩二脲，会影响种子发芽，浓度过高时会使种子中毒。用尿素作种肥时，不要直接接触种子或控制尿素施用量。六是尿素作根外追肥浓度不宜过高。用作叶面肥，尿素效果确实好，但不能盲目加大用量。七是碳酸氢铵不宜施在土表太久。忌浅施，碳酸氢铵的性质不稳定，施后应立即覆盖。八是硫酸铵不宜长期施用。硫酸铵属于酸性肥料，长期施用会增加土壤酸性，破坏土壤结构。施用在碱性土壤上，硫酸根离子会与钙离子作用使土壤板结。因此，要与其他氮肥交替使用。九是不宜施在忌氮作物上。如施用在忌氮作物上会使作物生理机能遭到破坏，严重时会使作物死亡。（来源：《中国花卉报》2004.01.06）
