施肥与耕作技术集成对土壤理化、生物性状及木薯产量的影响

Effects of Integrated Fertilization and Tillage Technologies on Soil Physical and Chemistry Property and Yield of Cassava

为了探讨施肥及耕作技术集成对木薯地土壤理化、生物性状及木薯产量的影响,本试验共设置5个处理,分别是生物有机肥+测土配方肥+盖膜集雨水+深耕(处理1)、生物有机肥+测土配方肥+盖膜集雨水(处理2)、生物有机肥+测土配方肥+深耕(处理3)、生物有机肥+测土配方肥(处理4)、施通用高浓度复合肥(处理5常规施肥及种植方式作为对照),通过大田试验研究他们对木薯地土壤理化、生物性状及木薯产量的影响。结果表明:与常规施肥及种植方式相比,不同施肥及耕作栽培技术集成处理均可提高木薯地土壤养分含量和含水量,改善土壤理化性状和土壤微生物区系组成。处理1的木薯产量增幅达到35.81%,差异极显著。本试验条件下,木薯最优的施肥及耕作栽培模式是技术综合集成生物有机肥+测土配方肥+盖膜集雨水+深耕(处理1)。

In order to discuss the effects of integrated fertilization and tillage technologies on soil physical and chemistry property and yield of cassava, the author designed with 5 different treatments, namely,biological organic fertilizer ＋ formula fertilizer for examining soil ＋ cover film collecting rainwater ＋ deep plowing（treatment 1）, biological organic fertilizer ＋ formula fertilizer for examining soil ＋ cover film collecting rainwater（treatment 2）, biological organic fertilizer ＋ formula fertilizer for examining soil ＋deep plowing（treatment 3）, biological organic fertilizer ＋ formula fertilizer for examining soil（treatment4）, general high concentration compound fertilizer（treatment 5 conventional fertilization and planting pattern as control）. Effect of different treatments on soil physical and chemistry feature, biological characters and yield of cassava by field experiment was discussed in this paper. The results showed that compared with the conventional fertilization and planting mode, the integrated treatment of different fertilizations and cultivation technologies can improve the soil nutrient content and water content, the soil physical and chemical properties and soil microbial flora composition can be aslo improved. Cassava yield under treatment 1 increased 35.81%. The difference is very significant. The optimal fertilization and cultivation model of cassava is treatment 1 under the condition of this experiment.