1) Nitrogen levels and forms
氮素水平与形态
2) Nitrogen form
氮素形态
1.
Effects of nitrogen form and rate on nitrate and nitrite content in flue-cured tobacco;
不同氮素形态和用量对烤烟硝酸盐和亚硝酸盐含量的影响
2.
Effects of nitrogen form and baking on tobacco-specific nitrosmaines (TSNA) and precursor;
氮素形态和烘烤处理对烟草特有亚硝胺及其前体物的影响
3.
Effects of nitrogen forms and solution concentration on growth of Limonium bicolor L.;
氮素形态和营养液浓度对二色补血草生长的影响
3) nitrogen forms
氮素形态
1.
Effects of nitrogen forms on rhizosphere microorganisms and soil enzyme activity under cultivation of contrasting wheat cultivars during booting and grain filling period;
氮素形态对专用小麦中后期根际土壤微生物和酶活性的影响
2.
Effect of nitrogen forms on growth and quality of‘Niitaka’pear;
氮素形态对新高梨生长和果实品质的影响
3.
Effects of nitrogen forms on root characteristics in wheat;
氮素形态对小麦根系特性影响的初步研究
4) N form
氮素形态
1.
Effect of N form on physiological mechanism and biomass in corn seedlings;
氮素形态对玉米幼苗生物机制及生物量的影响
2.
influence of different N forms on accumulation of carbohydrate and nutrients.
在沙培条件下分别供应铵态氮、硝态氮及1∶1的铵硝态氮营养液,研究了2种氮素形态对玉米苗期可溶性糖、还原态糖含量及N、P、K累积的影响。
5) N forms
氮素形态
1.
Characteristics of N forms and N-transforming bacteria in paddy soil under different tillage patterns
不同耕作方式下稻田土壤的氮素形态及氮素转化菌特征
2.
The effect of N forms and NH+4-N/NO-3-N ratio on growth and nitrate content of Lettuce in Hydroponics was studied.
研究了不同氮素形态及其不同配比对营养液培生菜生长与硝酸盐含量的影响。
3.
The effects of N forms on contents of protein and protein components in grains were different betw.
不同氮素形态对两个不同氮效率小麦品种籽粒蛋白质及其动态变化、蛋白组分含量及其动态变化的影响不同。
6) Nitrogen levels
氮素水平
1.
Effect of Different Fertilizer Applying Treatments on Nitrate Accumulation in Rape under Different Nitrogen Levels;
不同氮素水平不同施肥处理对油菜硝酸盐累积的影响
2.
Nutrient absorption and quality of rice on Wuyujing 3 were investigated by different nitrogen levels and irrigation methods on field.
以粳稻武育粳3号为材料,研究了大田条件下不同氮素水平和土壤水分对水稻养分吸收及稻米品质的影响。
3.
To study the effect of different nitrogen levels on wheat seedling trait and nutrient content, Yumai 34 was tested for the material and 5 nitrogen levels was designed at pot test.
为研究不同氮素水平对小麦幼苗植株性状和营养元素含量的影响,与2009年4—6月在盐城工学院生物实验中心以豫麦34为材料,进行了5个氮素水平下的盆栽试验。
补充资料：土壤氮素形态
土壤氮素形态
forms of soil nitrogen
这一比率在90%左右，随着土层深度的加深，比率迅速降低.土城中一部分有机态氮与无机态氮之间主要通过矿化一生物固持作用而相互变化. (朱岁匕良茶贵信)土族氮素形态(forms of 5011 ni‘rogen)土坡中含氮物质的化学结合形式和存在状态，分有机态氮和无机态氮两大类。有机态氮为与碳结合的含氮物质.无机态氮为未与碳结合的含氮物质.有机态氮占土城全氮的比率，主要决定于有机态氮与无机态氮中的粘土矿物固定态按态氮的相对含t，在表层土坡中，
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条