施氮肥,nitrogen fertilization
1)nitrogen fertilization施氮肥
1.Effects ofnitrogen fertilization on fine root biomass and morphology of Fraxinus mandshurica and Larix gmelinii:A study with in-growth core approach内生长法研究施氮肥对水曲柳和落叶松细根生物量和形态的影响
英文短句/例句
1.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。
2.Effects of Topdressed N-Fertilizer on Translocation and Distribution in Soybean Plants追施氮肥对大豆体内氮素运转与分配的影响
3.high-clearance liquid nitrogen applicator高地隙液体氮肥注施机
4.Wheat fertilization mainly in basal, all organic manure, P and K and half of N fertilizers are applied at plowing, the rest N fertilizer dressed in jointing stage along with irrigation.小麦施肥主要为基肥，全部有机肥、、和一半氮肥翻地时施入，其余氮肥在拔节期随灌水追施。
5.Effects of Nitrogen Application Time on Carbon Assimilate and Nitrogen Translocation and Nitrogen Use Efficiency of Summer Maize施氮时期对夏玉米碳氮运转及氮肥利用的影响
6.A Study on Effects of N-fixing Bacteria Fertilizer under Different Soil Nitrogen Level;不同施氮水平下固氮菌肥施用效果的研究
7.Studies on the Effect of Nitrogen, Phosphorus and Potassium and Formulated Fertilizer Application of Blueberry;越橘氮磷钾的施肥效应及配方施肥的研究
8.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
9.The Effect of Formula Application on Yield of Zunyu 3 and Its Application Parameters氮磷钾肥配施对遵玉3号产量、施肥参数的影响
10.Experimental Study on Fertilization and the Different Proportion Nitrogen Fertilizer of Jing-9428 Wheat京9428小麦施肥量和氮素化肥不同施肥比例试验研究
11.Mechanism of Soil N Supply in Paddy Soil and Reaching Optimal N Application for Rice;稻田土壤供氮机理及水稻氮肥优化施用研究
12.Effects and Mechanism on Nitrogen Output in Farmland with Nitrogen Fertilization;氮肥施用对农田氮素径流输出的影响及其机理
13.Study on the N-element Nutrient of Red Globe Grape and Its Nitrogen Fertilization全球红葡萄氮素营养及氮肥施用效果研究
14.Nitrate-N Leaching in 23-Year Winter Wheat Field Combined with Application of Nitrogen and Phosphorus小麦氮磷肥长期配施对土壤硝态氮淋溶的影响
15.Study of Nitrogen Fertilization on Summer Maize Based on Soil Nitrate Nitrogen Test基于土壤硝态氮测试的夏玉米氮肥施用研究
16.Where they do use chemical fertilizer, they tend to use nitrogen only, thereby mining the soils.使用化肥时，只施用氮肥，从而其它养分逐渐耗竭。
17.Characteristic of Nitrogen Use Efficiency of Central Food Crops under Long-term Fertilization;长期施肥下我国粮食作物氮肥利用率变化特征
18.Effects of Nitrogen, Phosphorus, and Potassium Fertilizers on Tobacco Internal Quality and Its Fertilization Model;氮磷钾肥对烤烟内在品质的影响及其施肥模型
相关短句/例句
Nitrogen application氮肥施用
3)Spraying nitrogen喷施氮肥
4)N-dressed shallow氮肥表施
5)nitrogenous fertilizer apply氮肥配施
6)N and P fertilizer-applied施氮磷肥
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》.01.06）
