Field experiment was conducted for studying the effect of nitrogen forms on the yield of Chinese cabbage and the accumulation of nitrate.
通过田间试验研究了不同形态氮肥对大白菜产量及硝酸盐累积的影响。
There were different responses in cultivars with high yield and low protein content to nitrogen forms.
高产低蛋白品种对氮肥形态反应不一。
The results showed that different nitrogen forms significantly affected the dry matter accumulation percentage in different plant organs.
结果表明，不同氮素形态配比影响了植株各器官干重占全株干重的百分比。
There are obvious difference in the contents of endogenous hormone and polyamine content under osmotic stress and different nitrogen forms.
渗透胁迫和不同氮肥形态处理烤烟叶片内源激素和多胺含量有明显的差异。
The nitrogen contents and nitrogen forms were studied in albic soil with longterm crop rotation and soybean, maize, wheat continuous cropping.
对轮作及大豆、玉米、小麦长期连作白浆土中氮含量及有机态氮组分变化进行研究。
The biological effect of protectively applied nitrogen on nodulation N-fixing activity, nitrogen forms in Xyloid liquid, and amount of assimilated nitrogen in soybean were studied.
从大豆结瘤、固氮活性、木质部溶质氮形态以及植株同化氮量论证了保护性施氮的生物学效应。
Pot experiment was carried out to study the effect of different nutrient levels and nitrogen forms on the growth, nutrient uptake, partitioning, and potassium flow within flue-cured tobacco plants.
为材料，在室内砂培条件下研究了不同养分浓度及氮形态对烟株的生长、养分的吸收和分配，以及钾循环等的影响。
Nitrogen forms most of the Earth's air.
地球上空气的大部分成分是氮气。
Nitrogen forms most of the Earth's air.
地球上空气的大部分成分是氮气。
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