花生的不同耕作方式对土壤养分及酶活性的影响

Effect of Soil Nutrients and Enzyme Activity on Peanut Planting By Different Cropping Patterns

研究了江西红壤区花生4种不同耕作方式对土壤养分与酶活性的影响.结果表明:1)轮作有利于调节土壤酸性,该模式下种植年限长或轮作作物多能改善土壤酸性;2)不同的耕作方式对土壤有效养分的影响比较显著,西瓜、花生轮作方式下土壤有效养分含量较稳定;3)花生连作会明显降低土壤酶活性,轮作有利于提高土壤酶活性.

The nutrients and enzyme activity in soil are investigated in the four red soil fields with different cropping patterns of peanut in Jiangxi. The results indicate that： 1） rotating cropping pattern is advantage to improve the acidity of red soil, especially in long rotating cropping period and diversity planting; 2） advantages of different cropping patterns are obvious, watermelon and peanut rotating cropping pattern is benefit of keeping soll nutrients steadily; 3） the enzyme activity would be decreased with peanut cropping continuously, whereas be increased with crop rotation.