Abstract
The present study was conducted for the study about the effect of different rotations on physical properties in a Mollisol. The study area was located at Norman E. Borlaug Crop Research Centre, G. B. Pant University of Agriculture and Technology, Pantnagar, which lies at 290N latitude, 790 3’ E longitude and 243.84 m above the mean sea level altitude. The crop rotation selected for study were T1 (Rice- Wheat-Fallow) T2 (Rice- Vegetable pea- Summer Rice) T3 (Maize- Wheat- Cowpea) T4 (RiceWheat- Sesbania) T5 (Maize- Toria- Urd) T6 (Rice- Yellow Sarson- Grain Cowpea) T7 (Multi-Cut Sorghum- Barseem + Oat- Maize + Cowpea) T8 (Napier + Fodder cowpea- Barseem- Fodder cowpea) T9 (Basmati rice- Potato- Maize Cob) T10 (Maize- Broccoli- Okra) T11 (fallow (uncultivated land)). The soil sample was collected from 20cm depth for the study of soil physical properties (soil color, soil texture, bulk density, particle density, porosity, and water holding capacity). Among the different crop rotations, T4 treatment was obtained a significantly high value (except bulk density) of soil texture, particle density, porosity, and water holding capacity. T11 (except bulk density) treatment was obtained a significantly lowest value of soil texture, particle density, porosity and water holding capacity Results indicated that soil under Sesbania rotation was found superior with respect to soil physical properties followed by other crop rotation and the uncultivated land. By taking a crop for a long time on same and using chemical fertilizers that are decrease of soil physical properties. Therefore, in this experiment taking different crop rotations. under the different crop rotations, soil physical properties influenced positively and especially the green manure cycle has had the greatest positive impact. According to experimental data concluded that incorporation of green manure crop rotations was effect more positive an effect on soil physical properties. Crop rotations and green manure crops are improved soil physical properties and soil health.
Published Version
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