The root vegetables were the worst, and the cabbage and green leaf vegetables were worse than other vegetables, and the onion garlic, kale and Legume vegetables were polluted by nitrate.
Wheat root activity and nitrate reductase of green manure in intercropping increased 57.95% and 87.56% than that in single cropping, resp., with the differences at significant level.
间作系统中小麦根系活力和绿肥硝酸还原酶分别较单作增加了57.95%和87.56%，差异达显著水平。
3
This paper has compared a green chemistry technology of ammonium eerie nitrate with the classical technology by atom economy.