Study On The Effects Of Organic Material On Urea Ammonia Volatilization

The incubating experiments were conducted in laboratory to study the effects of organic material on soil of urea ammonia volatilization in black soil with different organic material application.To quantitatively investigate the relationship of temperature and the rate of urea ammonia volatilization,the total of urea ammonia volatilization and the volume of organic material application,under the condition of different temperature and organic material,The result showed:With the different application of organic material put into soil,the rate of urea ammonia volatilization is different.whether organic material is base fertilizer and urea fertilize as basal manure,or organic material is base fertilizer and urea fertilize as top dressing.,corn,rice,and soybean show the same trend:with the application of corn and rice increasing,the rate of ammonia volatilization is increasing.the trend of changes in rice fertilization is V shape change.With the type of organic material put into soil is different,the ammonia volatilization in soil is differernt.whether rganic material is base fertilizer and urea fertilizer as basal manure,or organic material is base fertilizer and urea fertilizer as top dressing.,ammonia volatilization rate is soybean>corn>rice.With the different time when organic material put into the soil,the rate of urea ammonia volatilization is different,organic material is base fertilizer and urea fertilize as basal manure,organic materials inhibit the ammonia volatile,and the total volatilization is obviously less than CK;organic material is base fertilizer and urea fertilize as top dressing.organic materials accelerate the ammonia volatile,and he total volatilization is significantly high than CK.The interaction of temperature and organic material application conformed to the function:Y=(a+bW)e^(KT).The decisive coefficient was very significant and it conformed to the practice very well.It could be shown by the analysis faction:the quantity of NH₃ released from soil would rise with increasing temperature and organic materials application.