Ammonia volatilization from paddy field and its affecting factors in zhenjiang hilly region 鎮(zhèn)江丘陵區(qū)稻田化肥氮的氨揮發(fā)及其影響因素
Characteristic of ammonia volatilization of percarbamide in different acidity and alkalinity soils 過碳酰胺在不同酸堿性土壤上的氨揮發(fā)特性研究
It is apparent that a high degree of ammonia volatilization and / or nitrate leaching can occur in cropping systems susceptible to previously described conditions 很明顯,高的氨揮發(fā)和(或)硝態(tài)氮的淋失會(huì)發(fā)生在符合上述條件的任何種植制度中。
In addition , the model of interaction of water and temperature between field water vaporization and soil water storage , temperature and millet weight is gotten by field trial . 2 . the ammonia volatilizing of fertilizer is suit to the dynamic equation as y = a + bt , the coefficients in the equation are related to the kind of fertilizer , temperature and water content of soil , and the dynamic equation about ammonia volatilization including water and temperature and the is developed 肥料氨累積揮發(fā)量符合零級(jí)反應(yīng)動(dòng)力學(xué)方程y = a + bt ,方程中系數(shù)與肥料種類、溫度和土壤含水量有關(guān),碳銨a 、 b值均比硫酸銨高,土壤含水量增大, a 、 b值降低,溫度升高, a 、 b值增大,并由此得到含溫度或土壤濕度因子的肥料氨揮發(fā)動(dòng)力學(xué)方程,并建立了含水、熱因子的肥料氨揮發(fā)水熱耦合效應(yīng)動(dòng)力學(xué)方程。