土壤深松对玉米产量及其构成因素的影响

Effect of Deep Tillage of Soil to Maize Yield and Its Component Factors

摘要:

全方位土壤深松打破传统翻地留下坚实的犁底层,使20～40cm土层松散,增加深层土壤透水能力。玉米田深松试验,可改善深层土壤水分状况,提高玉米产量,对其产量构成因素及生物指标,如根系分布和根活力、地上和地下干物质积累、叶绿素含量、养分吸收量、穗粒数和千粒重等有一定的促进作用。

Abstract:

Not only did substantial plough pan break though traditional ploughing pattern but also loosened the soil layer of 20-40 cm and enhanced the capacity of seeping water in deep soil through entire deep tillage of soil. From the experiment of deep tillage of maize field, we found that water condition of deep soil was improved and increased maize yield it has some effect on component factors of yield and biological index. such as distribution of root system, vitality of root, accumulation of dry matter of root system and other parts of ground surface chlorophyll concentration, nutrition absorption, kernel numbers per spike and 1000 grain effect.