搜索结果: 1-6 共查到“土壤学 NPK”相关记录6条 . 查询时间(0.14 秒)
EFFECT OF NPK FERTILIZER ON THE GROWTH OF SAPROPHYTIC FUNGI IN ALLUVIAL SOIL
saprophytic fungi mineral fertilizers plum culture
2010/12/8
The influence of different NPK fertilizer rates on the developement of the saprophytic fungi of the alluvial soil planted with plum culture has been studied over the three-year period (2003 – 2005). T...
采用3 种典型土壤: 河南封丘石灰性潮土、江苏常熟中性黄泥土及江西鹰潭红壤, 研究室内纯培养过程中N 素在土壤中的转化及
其受PK 影响的规律。全N 研究结果表明: 外源铵态N 在土壤中极易通过挥发、硝化和反硝化等途径而减少。随培养时间的延长, 土壤
中全N( 不包括硝态N) 均呈下降趋势, 其中黄泥土和潮土的降幅大于红壤。施N 条件下,PK 肥的施用对氮的转化也有一定的影响, 施P
处理的...
Growth and yield of white guinea yam（Dioscorea rotundata Poir.）influenced by NPK fertilization on a forest site in Nigeria
Crop growth rate Leaf area index Total dry matter yield
2009/2/19
Two field experiments were conducted at Evboneka in Edo State, Nigeria to determine the optimum fertilizer requirement of white guinea yam (Dioscorea rotundata Poir) and to develop an efficient fert...
尿素熔融法制有机－无机NPK复肥
尿素 熔融法 氮钾磷复肥
2008/11/5
该项目采用尿素熔融液同有机物和其他肥料盐类混合造粒，同国内外其他工艺比较，其创新点在于：利用尿素熔融液在混合过程中帮助成粒，由于在混合过程中尿素熔融液冷却并释放潜热，造粒物料的温度大幅提高，只需添加少量的水或蒸汽即可达到理想的成粒条件。造粒物料水分降低，有助于减轻干燥过程的负荷，甚至在生产高氮含量产品时无需干燥过程。此外，产品的外观和强度也有较好的改善，吨产品能耗较低。
The Response of Dioscorea rotundata to NPK Fertilizer Application in Edo State, Nigeria
Dioscorea rotundata forest zone tuber yield and NPK fertilizer
2010/11/10
The influence of NPK 15:15:15 fertilizer application on Dioscorea rotundata cv “Obiaoturugo”
was carried at Evboneka in Edo State to determine the optimum level of NPK fertilizer application on yam i...