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- Huang S M,Bao D J.Effect of N fertilizer application on nitrate content in soil and underground water[J].Agri-Environ.Prot.,2000,19(4):228-229. [19]黄绍敏;宝德俊.;施氮对潮土地下水硝态氮含量的影响[J]
- N fertilizer application in wheat significantly increased total N, ammonium N and nitrate-N contents in paddy field, resulting in high indigenous N supply of soil (INS). 结果表明，麦季氮肥的施用明显提高了稻季土壤全氮、铵态氮和硝态氮的含量，造成土壤背景氮偏高。
- Incorporating Chinese Milk Vetch into soil can reduce the chemical N fertilizer application rate by 44%, and also diminish the environmental risk of N runoff. 利用豆科紫云英轮作还田,可降低44%25的无机N肥用量,溶解性N浓度显著降低,是减小稻季N肥流失环境风险的有效途径。
- the maximum economic rate of N fertilizer application 氮肥经济施用量
- N fertilizer application 施肥
- Timing and Methods of Fertilizer Application? 施肥时期和施肥方法?
- It must be emphasized that performance of inoculant and the amount of N legumes derive from BNF is directly linked to crop management including application of N fertilizer. 必须强调的是，接种物的表现和豆类作物从生物固氮获得的氮量与包括施用氮肥的作物管理直接有关。
- The effects of Cu on rice at same level of N fertilizer were studied. 本文研究了微量元素铜在同样的氮肥量水平下对水稻生育的影响。
- Long-term fertilizer application effects soil organic carbon (C), total N and potentially mineralizable N in continuous wheat cropping systems in western Canada. 表6 加拿大西部小麦连作体系中长期施肥对土壤有机碳(C)、全N和潜在可矿化氮的影响 Table 6.
- The effects of different types and application methods of N fertilizer on greengrocery (Brassica campestris L. ssp.Chinnesis) yield and nitrate content were investigated in a field experiment. 摘要 采用田间试验研究了氮素形态、用量及施用时期对小青菜产量和硝酸盐含量的影响。
- Eight small scale field experiments located in the east of Hubei Province were conducted in 2006 to study the effect of mixed application of peanut rhizobia and Mo,P and N fertilizer on peanut yields. 在鄂东地区选择8个花生种植地作为田间试验点,研究了花生根瘤菌与钼、磷、氮化肥混合施用对花生的增产效果。
- Furthermore, N and P fertilizer application rate could be decreased accordingly to optimize fertilizer management when contributions from eutrophied irrigation water were taken into consideration. 在利用当地富营养化河水进行稻田土壤灌溉时可适量减少肥料施用量、优化氮磷肥料管理。
- The photoperiod characteristics played an important role in response to N fertilizer. 非光敏品种对高施氮量反应好，其最高产量需要更多的氮。
- Dressing N fertilizer in flowering stage led to the decrease of glutelin content. 开花期追氮导致谷蛋白含量降低；
- Applying N fertilizer during the R4 and R5 periods could increase the crop N-accumulation and yield significantly. 在 R4和 R5 期补充氮肥的供给明显增加植株对氮的积累，并能显著提高大豆产量。
- Studies on Mineral Nutrients and Fertilizer Application of Castanea Mollissima BL. 板栗矿质营养与施肥研究。
- Brassica rapa was selected as research object to study the effect of fertilizer application rate in high altitude zone of Qinghai Province. 在青海省高海拔农业区,以当地主要种植的白菜型油菜作为试验对象,进行增施不同用量钾肥的大田试验,研究其对油菜产量的影响及肥料效应。
- 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。
- The results showed that: the content of essential and total Aa. and etc. were increased significantly by applying N fertilizer in Tumochuan. 结果表明，在土默川地区，施氮肥后，必需氨基酸含量、酸性和碱性氨基酸含量及氨基酸总量极显著增加；
- Because accumulation of photosynthate decreased, the increase in the N fertilizer made soluble sugar content in flag leaves reduce. 由于光合产物积累减少，增施氮肥使旗叶可溶性糖含量降低。
