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- Based on the long-term field experiments, the relationships between soil nitrogen balance, nitrogen utilization efficiency (NUE) and soil nitrate were studied. 摘要 利用长期肥料试验资料研究了土壤氮素平衡、氮肥利用率和土壤硝态氮之间的相互关系。
- Study on Soil Nitrogen Balance in Double Cropping Farmland with Returning Whole Stalks into the Soil 两熟制农田秸秆全量还田的土壤氮素平衡研究
- soil nitrogen balance 土壤氮素平衡
- Soil accumulated nitrate is positively related to the nitrogen balance value and negatively related to NUE. 一般情况下,氮素盈余值与氮肥用量呈正相关,与磷肥用量呈负相关;
- Nitrogen balance was better in EN group than that in PN group. 术后第3天起,两组间每日氮平衡和累计氮平衡均有差异显著(P<0.;05,P<0
- Effects of long-term plant Medicago sativa Linn. on soil nitrogen nutrient. 长期种植苜蓿对土壤氮素营养的作用
- Depletion of soil nitrogen frequently leads to reduced concentrations of soluble amino and amides. 土壤氮素的减少常常导致可溶性氨基酸和酰胺浓度的降低。
- Heat production,energy and nitrogen balance were evaluated in respiration double chamber (BAU KB-1). 连续7天持续灌注后用农大KB -1型呼吸测热室测定产热和能氮平衡。
- Influence of temperature and moisture on soil nitrogen mineralization under two types of forest in Changbai Moun. Tain. 温度和湿度对长白山两种林型下土壤氮矿化的影响。
- Body weiht,plasma albumin,nitrogen balance and enterocinesia were evaluated on the 3rd and 7th postoperative day. 术后3天,7天对患者的体重,血浆白蛋白,氮平衡和胃肠功能恢复时间进行比较。
- There was a positive correlation between the amounts of most soil microbe and soil nitrogen content. 土壤中大多数微生物数量与土壤氮素养分含量呈正相关。
- Conclusions Obvious negative nitrogen balance and hypoalbuminosis occur after surgery for tumors of digestive system. 结论消化道肿瘤病人术后可出现明显的负氮平衡和低蛋白血症。
- These results indicate that the vegetation has stronger effect on soil nitrogen mineralization than soil types. 不同土地利用方式对土壤氮素矿化作用的影响强于不同土壤类型的影响。
- The blood protein,nitrogen balance and complications were observed.Results There were not significant differen... 结论脑外伤后经鼻-胃管进行早期肠内营养是可行的,但要注意营养液的给入速度和及时、有效地处理并发症。
- The priming effect of nitrogen fertilizer on soil nitrogen was studied by using waterlogged incubation method. 摘要应用淹水培养方法,研究了铵态氮肥对土壤氮素的激发效应。
- The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification. 土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
- However, this can bc reversed by early BCAA-rich total parenteral nutrition with early attainment of positive nitrogen balance. 术后血支链氨基酸浓度明显下降,支链氨基酸浓度较高的全静脉营养可扭转这种现象并使正氮平衡提前出现。
- Methods 46 patients were taken into n parenteral alimentation, the blood bio-chemical index and nitrogen balance were examined during the period. 方法46例患者实施肠外营养,期间检测血生化指标和氮平衡。
- The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decomposition, nitrification and denitrification. 土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
- The results showed that the arginine group got better wound healing and faster recovery of cellular immunity, and achieved positive nitrogen balance. 结果显示:实验组创面愈合情况好于对照组,细胞免疫水平的恢复比对照组快,并取得了正氮平衡。