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- The N application rate significantly affected the occurrence of rice tillers. 随着施氮水平的增加，单株茎蘖数增加。
- optimal application rate of fertilizer N 适宜施氮量
- The bigger N application rate, the more tillers per hill, and the bigger transplanting density, the more tollers per unit area. 移栽密度越大，其单位面积茎蘖数总数也越多，且始终维持这个结果。
- It was also confirmed that the corn yield in aeolian sandy soil was a little lower than that in irrigated desert soil even though the N application rate was raised by 127.5 kg/hm~2. 灌漠土与风沙土两个试验点比较;风沙土试验点不但施氮量比灌漠土高出127.;5 kg/hm2;而且其产量还略低于灌漠土试验点。
- Effect of N application rates on leaf senescence and its mechanism in maize was studied by methods of field experiment, plant analysis and electron microscopy examination. 采用田间试验、植株分析及电镜检测方法研究了氮肥用量对玉米叶片衰老的影响及其机制。
- Field experiment was carried out to investigate the yield advantage of intercropped wheat and faba bean, and on nitrate accumulation in soil profile at different N application rates. 摘要 通过田间小区试验，研究了小麦/蚕豆间作条件下作物的产量优势及不同施氮水平和种植方式中土壤硝酸盐累积。
- Field experiment was carried out to investigate the yield advantage of intercropped wheat and faba bean,and on nitrate accumulation in soil profile at different N application rates. 摘要 通过田间小区试验,研究了小麦/蚕豆间作条件下作物的产量优势及不同施氮水平和种植方式中土壤硝酸盐累积。
- 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。
- Studies on N Application Rate, Time and Partitioning of Summer Maize (Zea Mays L.) in HeiLong-gang Region 黑龙港地区夏玉米氮肥用量与?用时期及分配比例的研究
- 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。
- 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。
- While raising N application concentration fromtransplanting to heading or employing excessive spike fertilizer would result in obvious decrement of hull area and grain weight. 增加移栽至抽穗期的供氮浓度或过多施用穗肥，使谷壳面积明显减少，千粒重显著下降；
- The differences of soil nutrients might be related to soil texture and application rate of fertilizer. 各调查点土壤养分含量之间的差异与施肥量和土壤质地有关。
- Farmers using fertilizer N on legume crops will probably reduce their potential income. 农民向豆类作物施氮肥意味着他们潜在收益的减少。
- The highest ratio of the fertilizer N to total N in plant was found in rosette stage, and then it declined slowly. 同时，施氮量越多，各个时期各部位和整株中肥料氮的比例越大，且均在团棵期达到最大值；
- Effects of Planting Time, Method and Fertilizer Application Rate on Production and Quality of Gentiana Scabra Bge. 播种期、种植方式、施肥量对龙胆产量和质量的影响。
- The N application of later-date-emphasized increased amylose and amylopectin accumulating rate. 侧重后期施氮处理有利于提高直、支链淀粉积累速率。
- Fertilizer N not taken up by plant roots is subject to microbial immobilization and losses by denitrification, volatilization and leaching. 未被植物根系吸收的肥料氮会被生物固定和通过反硝化、挥发和淋失而损失。
- Title： Effects of Planting Time, Method and Fertilizer Application Rate on Production and Quality of Gentiana Scabra Bge. 关键词：龙胆;播种期;种植方式;施肥量;产量;影响
- BERGSTROM L,BRINK N.Effects of differentiated applications of fertilizer N on leaching losses and distribution of inorganic N in the soil[J].Plant and Soil,1986,93(3):333-345. 吕殿青杨进荣.;灌溉对土壤硝态氮淋吸效应影响的研究[J]
