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- Nitrogen nutrient balance and its impact on soil available nitrogen content in Shanghai suburb farmlands 上海郊区农田氮养分平衡及其对土壤速效氮含量的影响
- Effect of coated compound fertilizer on yield, nitrogen use efficiency and soil available nitrogen in summer maize 包膜复合肥对夏玉米产量、氮肥利用率与土壤速效氮的影响
- A Study on Relationship Between the Spatial Variability of Saline Anthropogenic alluvial Soil Available Nitrogen, Phosphorous, Potassium and Cotton Growth 盐化灌淤土壤速效氮、磷、钾空间变异性与棉花生长关系初步研究
- Soil available nitrogen content 土壤速效氮含量
- Soil available nitrogen 土壤有效氮
- The available nitrogen and phosphorus contents in root rhizosphere were greater than those in bulk soil, while its content of the available potassium was lower. 根际碱解氮和有效磷含量高于非根际土壤,其速效钾含量却低于非根际土壤。
- The experiments in pot culture were conducted to study the effects of Anaerobic Fermentation Residues (AFR) on nitrate accumulation in rape and available nitrogen in soil in order to provide new way for the comprehensive utilization of biogas engineering. 研究沼气发酵产生的厌氧发酵残余物 (沼液、沼渣 ,以下简称沼肥 )在培肥土壤过程中土壤速效氮的变化及对油菜硝酸盐含量的影响 ,为沼气综合利用提供新的理论和技术依据。
- As to the soil of tailing deposit, what it lacks most is the readily available nitrogen fertilizer which will be indispensable during land reclamation with the nitrogen-fixation vegetation planted. 尾矿库最缺乏的土壤营养元素为速效氮,土地复垦时应着重考虑施加氮肥或者种植固氮植物。
- Abstract Urea occurs ubiquitously in nature and acts as a rapidly available nitrogen (N) source for the growth of many organisms, including plants. 摘要 尿素普遍存在于自然界,其既是生物氮代谢的重要中间产物,也是易于被许多生物如植物利用的生长氮源。
- The high altitude areas were rich in organic matter, available nitrogen (N) and available (potassium) K contents and deficient in phosphorous. [方法]对湖北宣恩烟叶产区不同海拔的植烟土壤主要养分的含量状况进行分析。
- The content of soil available Sulphur was decreased after harvesting cole and radish. 另外种植油菜和四季萝卜的土壤,有效硫的含量较种植前略下降;
- Activities of polyphnol oxidase and urease have negative correlation with organic matter, available nitrogen, available phosphorus and available potassium. 而多酚氧化酶和脲酶活性与土壤有机质,氮、磷、钾的有效性呈负相关。
- And the increase rates of soil available phosphorus and slowly available phosphorus were MCSWFC>CSU>SFC. 土壤速效磷、缓效磷的增幅均为田菁水植养鱼处理>田菁旱作处理>蓄淡养鱼处理。
- Soil fungi number and urease activity were negative correlation with soil available potassium content. 土壤真菌数量、脲酶活性与有效钾含量呈负相关。
- Compared with CK, soil available P increased by 10-fold and 3-fold with the treatment of NPKM and NPK+straw, and 3-5 fold with NP, PK and NPK. 氮磷钾配施有机肥速效磷含量比不施肥增加10倍以上,而氮磷钾配施秸秆比对照增加3倍;
- Soil culture results showed soil available sulphur had been increased significantly after different sulphur ferti1izer were appl ied. 土壤培育试验结果表明,不同硫肥品种施入土壤后,土壤有效硫含量明显升高,在培育1周时有效硫含量达到最高值,并随着培育时间的延长,土壤有效硫含量表现出先升高而后降低的趋势;
- MT's fermentation kinetics are steady and its alcohol tolerance is high, however, it will benefit from a balanced nutrient strategy especially in low available nitrogen musts with high potential alcohol. 摩的酒精发酵动力学的稳定和宽容是高的,但是它将从战略均衡的营养特别低酒精高潜力务必速效氮。
- The result showed that the soil available N content of the vineyard a low and in grade 5 while that was in grade 3 in the kaleyard. 结果显示:东丽区葡萄园的速效氮含量较低,处于5级;
- The results showed that the index of organic matter, total nitrogen, total phosphorus, available Nitrogen, Phosphorus and Potassium in 16-year-old organic tea garden were higher than those of 10-year-old and 4-year-old. 结果表明,16年生有机茶园土壤在有机质、全氮、全磷、速效氮、速效钾等各项指标上均高于10年生和4年生有机茶园土壤。
- The N0 value, available nitrogen, hydrolizable nitrogen, amino acid-nitrogen and mineralizable nitrogen had very significant positive relation with nitrogen absorption contents of maize. 土壤N0值、碱解氮、酸解总氮、氨基酸态氮、可矿化氮与玉米植株吸氮量间呈极显著正相关;