不同免耕栽培方式对水稻产量及土壤肥力的影响研究

为了探讨不同免耕栽培方式对水稻产量及土壤肥力的影响,龙岩市农技站在双季稻区进行了连续3年的不同免耕栽培方式试验。结果表明：半年免耕早、晚稻产量与习惯有耕相比无显著差异,且对土壤的物理性状及养分状况影响不明显,节本增收效果好,可作为水稻免耕的主要方式推广;全年免耕晚稻产量与习惯有耕相比产量减少,土壤容重增加;全年免耕、半年免耕与习惯有耕的土壤pH、有机质及主要养分含量无差异。

Study Concerning Effects on Rice Yield and Soil Fertility of Different No-tillage Cultivation Ways

In order to discuss effects on rice yield and soil fertility of different no-tillage cultivation ways, Agriculture Technology Promotion Station of Longyan City carried on the experiment with three years by different no-tillage cultivation ways in double cropping rice area. The result indicated that the difference about early-late season rice yield of both no-tillage cultivation in late season rice and normal cultivation was not remarkable, and the difference about the soil physical character and the nutrient condition of that was not obvious , so the no-tillage cultivation in late season rice will be promoted widely because the economic efficiency is obvious. The rice yield of no-tillage cultivation in early-late season rice was remarkable reduced than that of normal cultivation, but the soil bulk density was increased. However, the difference of the pH value, the organic matter and the primary nutrient content in soil by different tillage cultivation ways was not obvious.