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- low N fertilizer 低氮
- 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。
- Low S and low N carburant can be used for steels with special requirements. 对有特殊要求的铁种可采用低硫、低氮增碳剂。
- 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。
- Low SSB phasic noise conduces to detect be close to signal of carrier wave low n. 低SSB相位噪声则有助于检测靠近载波低电平信号。
- 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]
- 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；
- Compared with Urea fertilizers treatments.SCU, CCF, LPK, Low N suitable P&K treatments all had higher nitrogen use efficiencies, especially SCU. 肥料SCU、CCF、LPK和低N适PK的氮素利用率均显明高于普通尿素，SCU优势最为显著。
- 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。
- The variety of Baici with low N efficiency had a decreased root biomass compared to other genotypes under N stress condition in the two light intensity. 在不同光照水平低氮胁迫时，氮低效品种白瓷与其它三个品种相比,根系的形态指标均有不同程度的降低。
- For example, farmers must make choices about managing N in legume production systems.These choices are complicated by the negative interaction between N fertilizer and BNF. 例如农户在豆类作物的氮管理上做出选择，由于氮肥和生物固氮之间的负相关而使选择变得复杂。
- 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。
- The results showed that the model of n fertilizer for Hard Wheat, higher in jointing than in seedtime and spike-time, was beneficial for high yield as well as quality. 研究结果表明，氮肥运筹以“前轻中重后补充”模式的产量品质俱佳；
- 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 results indicated that the activities of GS and GPT, contents of protein and its components in grains of Qinmai11 with high N efficiency were greater than those of Yang 9817 with low N efficiency. 结果表明，高氮吸收型小麦品种秦麦11灌装期籽粒GS、GPT活性、蛋白质及其组分含量均大于低氮吸收型小麦品种扬9817。
- 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 direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on ureaSSP, with lower N loss, easier sale and more economy. 采用尿素与包裹后的磷钾粒肥直接掺混,避免和解决了尿素过磷酸钙系复混肥生产中存在的一系列问题,减少了氮素的损失,提高了产品的市场销售属性,增大了企业经济效益。
- Li W B, Wu L S, Liao H Q.Application and crop recovery of N fertilizer in high-yielding paddy fields of Taihu region[J].Acta Pedological Sinica, 1997, 34 (1): 67 - 73. [19]李伟波;吴留松;廖海秋.;太湖地区高产稻田氮肥施用与作物吸收利用的研究[J]
