您要查找的是不是:
- Nitrate N Accumulation in Vegetable Soil in Guanzhong Area of Shaanxi Province 陕西关中地区蔬菜地土壤的NO_3-N累积
- soil nitrate N content 土壤硝态氮含量
- BELANGER G,ZIADI N,WALSH J R,RICHARDS J E,MILBURN P H.Residual soil nitrate after potato harvest[J].Journal of Environmental Quality,2003,32:607-612. 郭胜利党廷辉郝明德.;黄土高原沟壑区沟坡地土壤剖面中矿质氮的分布特征[J]
- There were N accumulation peaks in A horizon of the transitional communities. 群落过渡带在腐殖质A层出现氮素累积峰。
- The vertical transport of soil water and nitrate N in main soil groups (yellow fluvo-aquic soils and Aeolian sandy soil) in Huang-Huai-Hai Plain was simulated by HYDRUS-1D model. 应用HYDRUS-1D模型对黄淮海平原的主要土壤(黄潮土和风沙土)中水分与硝态氮的垂直运移规律进行了模拟分析。
- SummaryThe characteristic of NO3--N accumulation in the soil layer of 40~220 cm with different amounts of nitrogen application was studied by analysis of NO3--N in soil solution collected in a cinnamon soil of the Piedmont Plain of Mt. Taihang. 通过采集土壤溶液并测定其硝态氮(NO3--N),对不同施N处理下40-220cm土层的NO--N累积特征进行了研究。
- Li W Q,Zhang M,Li H F,Zan L S.The study of soil nitrate status in fields under plastic house gardening[J].Acta Pedologica Sinica,2002,39(2):283-287. [9]李文庆;张民;李海峰;昝林生.;大棚土壤硝酸盐状况研究[J]
- The increase amount of residual nitrate N from third harvesting to fifth harvesting was 51.6% of the total amount of applied nitrogen during this period. 从第三季作物收获到第五季作物收获,残留硝态氮的增加量占这一时期氮肥施用量的比例高达51.;6%25。
- At all levels of P application, however, the nodulating crop has a dramatically higher yield and N accumulation than the non-nodulated crop. 但是在施磷的所有处理中,结瘤大豆均比不结瘤大豆显著地提高产量和氮素的积累。
- 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。
- The results were as follows: significant difference existed among inbred lines in yield, biomass and N accumulation amount. 结果表明:玉米自交系在产量、生物量和氮累积量上存在显著的差异。
- The results also showed that plastic film mulching increased N accumulation from reviving stage to harvesting stage and N translocation during reproductive stage. 覆膜亦能显著增加冬小麦各生育期氮素的积累,提高氮素转移量;
- Results showed that whatever fertilization practices in this study could promote nitrogen uptake,improve the N accumulation rate and increase its remobilization to fruit. 在施等量氮素养分条件下,草莓器官的氮素吸收状况对不同氮肥品种反应不一。
- In the each stage of the cotton growth remnant of soil nitrate nitrogen was higher, but loss of apparent budget of soil nitrate was higher only in the seedling stage and the beginning of bell stage. 棉花生长发育的各个时期土壤硝态氮的残留都很高,但仅在苗期、初铃期表观损失较高。
- Ye Y L,Li L,Sun J H,Zhang F S.Effect of root separation on pl ant nitrogen uptake and soil nitrate nitrogen residual in faba bean/maize intercropping[J].J.Soi1 Water Conserv.,2005,19(3):13-17. [19]叶优良;李隆;孙建好;张福锁.;地下部分隔对蚕豆/玉米间作氮素吸收和土壤硝态氮残留影响[J]
- Effect of Irrigation and Precipitation on Soil Nitrate Nitrogen Accumulation 灌溉与降水对土壤NO_3~--N累积的影响
- Zhao M X,Zhou J B,Yang R et al.Effects of N rates on the N accumulation,transportation and distribution of different winter wheat varieties[J].Plant Nutr.Fert.Sci.,2006,12(2):143-149. [2]赵满兴;周建斌;杨绒.;等
- Balanced nutrient application was beneficial to N accumulation in seeds, but nutrient deficiency was inclined to accumulate N in straws. 均衡的养分供应有利于N在子粒中积累,而养分缺乏的处理,秸秆中N含量相对较高。
- Field quick testing method of soil nitrate 土壤剖面硝态氮含量的快速测试方法
- Effects of different fertilizer application countermeasures on the soil nitrate nitrogen accumulation in dryland maize 不同施肥措施对旱地玉米土壤硝态氮累积的影响