矿质态氮 meaning in Chinese

mineral nitrogen

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。