Study on the Yield and Economic Benefits of Millet and Mung Bean Rotation Mode
[Objective]To study the effects of mung bean and millet rotation on yield,economic benefits and soil physicochemical properties under fallow land conditions.[Method]Using different varieties of summer millet and mung beans as materials,a two crop planting experiment was conducted once a year.The growth period,agronomic traits,yield related traits and soil physicochemical traits of mung beans and millet at maturity were recorded and analyzed.[Result]The growth duration of early sowing of mung beans(T1,T2,T3 treatments)was lower than that of the control,shortened by 6,10 and 12 days,respectively.The growth duration of late sowing of millet(Y1,Y2,Y3 treatments)was shorter or equal to that of the control.In the annual two crop planting mode of mung beans and foxtail millet,the rotation mode T2Y2 treatment(Jilv 19+Jigu 45)was better.Under this mode,the yield of mung beans was 2 286.0 kg/hm2,and the yield of foxtail millet was 2 431.5 kg/hm2,with an annual income of about 30 441.0 yuan/hm2,which was higher than the control millet(conventional time sowing)of 6 924.0 yuan/hm2.After maturity,the content of NH4+and NO3-in the soil decreased compared to before planting,and the content of NO3-reached a significant difference.The yield and economic benefits of mung beans were significantly correlated with growth duration,single pod weight,single grain weight,plant height and dry weight.The single pod weight and single grain weight of mung beans were significantly posi-tively correlated with their yield,and were significantly negatively correlated with growth duration,plant height and dry weight.The yield of foxtail millet was significantly positively correlated with growth duration,single spike weight,single spike grain weight and grain yield.[Con-clusion]Mung beans were suitable for sowing in early May,while millet was suitable for sowing in early July,and should not exceed August,which increased income,facilitated the integration of land use and nutrients,and promoted sustainable land use.
国家科技期刊平台
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