Soil ＆ Water Conservation Function and Comprehensive Benefits of Intercropping Forage in Eroded Fruit Garden
To solve problems of soil & water loss with soil degradation effects of long-term intercropping forage on erosion fruit garden was observed and studied. Results showed that runoff coefficient of intercropping plots was 0. 007 equivalent to 10% that of clean-tillage plots from 1 to 12 years. Soil erosion was not nearly found in intercropping plots. After 11 years intercropping, soil quality was obviously improved. The pH of soil (0~30 cm) in intercropping plots increased 0. 25-0.30 unit more than that in clean-tillage plots. The organic carbon content, available N content, available P content of soil (0-15 cm) in intercropping plots increased 7. 595~6. 728 g·kg-1, 26. 84~31. 89 mg·kg-1, 3. 57~4. 62 mg·kg-1 over that in clean-tillage plots, respectively. The organic carbon contents of both soil light fraction (0~30 cm layer) and soil heavy fraction (0~15 cm layer) in intercropping Arachis pintoi were higher than that in intercropping Chamaecrista rotundifolia, with the lowest in clean-tillage. Intercropping forage in erosion fruit gardens increase commercial fruit rate, fruit tasty value, and benefit forage comprehensive utilization, although it may cause slight yield loss of fruit trees.
Water and soil conservationEroded fruit gardenForageIntercrop
NETL
NSTL
万方数据
维普
