|
|
Effect of Long-term,Fixed Position Nitrogen Application on Variation of Soil Fertility in Vegetable Field |
Ge Xiaoguang; Wang Xiaoxue; Liu Xiuru et al. |
Department of Vegetable Science; Shenyang Agricultural University; 110161 |
|
|
Abstract Under the condition of long-term and fixed position nitrogen application in vegetable field,the effect of nitrogen application treatments on variation of soil fertility was investigated. Results showed that long-term organic manure application could increase the content of organic matter in the soil,its variation process was observed. Inorganic fertilizer had no effect on organic matter increase,the slow process of soil organic matter degeneration was also proved. Although organic fetilizer could improve th...
|
Received: 01 January 1900
|
|
|
|
|
|
|