soil N supply 土壤供N量
low n supply 低氮供应
n-supply level 供氮水平
Amino-N supply 氨基氮供氮
N supply efficiency 供氮效率
n-supply by soils 土壤供氮潜力
soil basal N supply 土壤基础供氮量
N supply decreased had no significant effect on nutrition uptake of winter wheat at normal temperature.
常温条件下,供氮水平降低对小麦的养分吸收没有明显影响。
参考来源 - 秸秆覆盖的土壤温度效应及其影响小麦生长的机理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Soil microbial biomass N also involved in nitrogen supply to crop.
土壤中微生物氮也参与了对作物的供氮过程。
The texture of cooked rice and the eating quality of rice varieties from the different eras were not improved with N supply from LN to MN.
适当增加供氮浓度，不同年代育成的籼稻品种的米饭质地和食味没有得到大的改善；
Leaf N/ chlorophyll content and SPAD value increased with the increasing N fertilizer, and the lower leaves were more sensitive to the soil N supply than the upper leaves.
下位叶比上位叶对土壤氮的供应状况更为敏感，随着施氮量的增加，水稻叶片氮素含量、叶绿素含量、SPAD值相应的增加，而下位叶的增幅更明显。
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