manure of nitrogen的意思|示意

Effects of inoculating microorganism agents and adding different attendant agents on changes of nitrogen contents during composting of pig manure were studied.

研究接种发酵菌剂和添加不同调理剂对猪粪发酵堆肥氮素变化的影响。

During the forced aeration composting with swine manure and bran, the characteristics of nitrogen transformation and NH3 emission are studied.

研究在猪粪、米糠强制通风堆肥过程中，堆体中氮素转化特点和NH3挥发规律。

This is a continuation of the study of the nitrogen availability index of green manure in rice pot experiment.

本文是水稻盆钵试验研究绿肥氮的有效度指标的继续。

Field experiment was carried out to study effect of different nitrogen rate on growth, yield and quality of flue-cured tobacco when applying green manure to soil.

采用田间小区试验研究了绿肥全部还田条件下不同施氮水平对烤烟生长发育以及烟叶产量、产值和品质的影响。

Without the application of manure, the inorganic nitrogen is the main pattern of the water-solution nitrogen loss, occupying about 60%.

不施用有机肥时，水溶性无机态氮为水溶态氮素流失的主要形态，所占比例在60％左右；

Simulated composting was carried out to study the changes of biochemistry and chemical characteristics of the organic manure compost using labelled organic material and inorganic nitrogen fertilizer.

通过室内模拟堆制和同位素交叉标记，研究了以稻草和禽畜粪为主体材料的堆肥制作过程中的生物化学变化特征。