硝态氮肥 meaning in English

nitrate nitrogen fertilizer

( 3 ) the amount of nitrogen leached was in the decreasing order as no3 - fertilizer > urea > nh4 + - fertinzer , and the main form of n leached was the n fertilizers added . the amount of nitrogen leached from sand soil exceed in that from clay soil
( 3 )在滴灌施肥条件下，三种氮肥(硝态氮、铵态氮和尿素态氮)在两种质地的土壤中的淋失量均是硝态氮肥尿素铵态氮肥，淋失的氮素主要为肥料氮。
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。