玉米110 cm垄合理耕整地方式比较

目的]研究不同耕整地方式对土壤物理性质和玉米产量的影响。方法]在110 cm垄栽培模式下,对5种不同整地方式的土壤田间持水量、容重、孔隙度、饱和含水量和玉米产量进行分析。结果]深翻、深松和旋耕均对各处理垄台土壤进行了扰动,土壤容重降低,孔隙度增大,田间持水量增加。垄台土层容重等物理性质的影响程度为秋灭茬旋耕+秋深翻秋灭茬旋耕+秋深松秋深翻春灭茬旋耕+春深松春旋耕;对垄沟容重等物理性质的影响程度为秋灭茬旋耕+秋深松秋灭茬旋耕+秋深翻春灭茬旋耕+春深松秋深翻春旋耕;产量表现为秋灭茬旋耕+秋深翻秋灭茬旋耕+秋深松秋深翻春灭茬旋耕+春深松春旋耕。结论]综合分析不同耕整地方式对土壤物理性质的影响、玉米产量及生产成本,秋灭茬旋耕+秋深松、秋深翻为玉米大垄合理的耕整地方式。

Comparison on 110 cm-ridge Reasonable Plough and Soil Preparation in Maize

Objective]To research the effect of different tillage methods on soil property and maize yield.Method]In 110 cm-ridge cultivation patterns,the soil field capacity,unit weight,porosity,saturation moisture content and maize yield of five different land preparations were analyzed. Result]Deep plowing,deep scarification and rotary tillage disturbed the soil of riddles,so these treatments had the lower soil unit weight,bigger porosity,and more soil field capacity.The impact of the physical properties,such as ridge soil unit weight were as followed,rotary tillage and deep plowing in autumn>rotary tillage and deep scarification in autumn>deep plowing in autumn>rotary tillage and deep scarification in spring>ro-tary tillage in spring.The impact of the physical properties,such as furrow soil unit weight were rotary tillage and deep scarification in autumn>rotary tillage and deep plowing in autumn>rotary tillage and deep scarification in spring>deep plowing in autumn>rotary tillage in spring.Maize yield performance were rotary tillage and deep plowing in autumn>rotary tillage and deep scarification in autumn>deep plowing in autumn>ro-tary tillage and deep scarification in spring rotary>tillage in spring.Conclusion]Comprehensivly analyzing the effects of different tillage methods on physical properties of soil,maize yield and cost of production showed that rotary tillage and deep scarification in autumn and deep plowing in autumn were the most reasonable manner for maize big ridge tillage and soil preparation.