mineral nitrogen meaning in English

矿质态氮

Nmin soil quality - determination of mineral nitrogen nitrat and ammonium in soil profiles nmin laboratory method
土壤质量.土层剖面中矿物氮
Effects of rainwater - harvesting cultivation on soil moisture and mineral nitrogen accumulation in field of winter wheat
集雨栽培冬小麦田土壤水分和矿质氮
Soil quality - sampling and storage of soil samples in view of determination of mineral nitrogen on fresh soil
土壤质量.为测定新鲜土壤中矿物氮含量对土壤进行的取样和样品的储存
Effect of mineral nitrogen distribution in soil profiles on nitrogen use of flue - cured tobacco under different application methods
不同施肥土壤中无机氮的垂直分布及烤烟对氮素的利用
The content of mineral nitrogen content ( nh4 + - n + no3 - n ) decreased during the incubation period after applying nh4 + - n fertilizer and urea . it maybe relates to the nh4 + - n fixation , volatilization , and its nitrification . ( 4 ) fertigation by drip irrigation increased the n uptake and accumulation of dry matter of summer maize , and improved the activity of crop photosynthesis
与滴灌施用硝态氮肥相比，施用铵态氮肥和尿素后在培养期间土壤矿质态氮( n03一n + nh犷一n )的含量有降低的趋势，降低的原因可能与nh4 +一n在土壤中的固定、挥发及硝化等过程有关。