India 's Fields Of Rai Block Of Sonepat District

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A study was conducted in farmers’ fields of Rai block of Sonepat district, Haryana, India to study the long term impact of two widely adopted resource conservation technologies (RCT’s) namely bed planting and zero tillage on structural properties of soils of recent alluvial plains of the river Yamuna. Aggregate mean weight diameter by dry sieving and wet sieving (DS-MWD and WS-MWD) under different RCT’s were studied to compare structural condition of the soils under continuous use of these technologies. Other important structural indices such as dispersion ratio (a measure of ease of dispersion; DR), colloid moisture equivalent ration (a measure of ease of percolation; CMER), erosion ratio (ER), stability index (SI), soil organic carbon (SOC), clay ratio (CR) were also studied to monitor the susceptibility of soil to erosion in the study area. Results revealed that in the surveyed villages under conventional tillage (CT), the mean (of 6 samples) magnitude of DR and ER were 0.58 and 0.82, respectively, and CMER was <1, which indicated the erodible nature of these soils. Analysis of data of bed and conventional systems revealed that on an average, there was about 19.08 % increase in SOC in bed planted system compared to conventional system. The decrease of DR, ER and CR from 0.66, 0.52 and 4.25 under CT to 0.42, 0.28 and 2.38 under beds indicated reduced eroding tendency of these soils under bed planting. Comparison of soil data of ZT and CT showed improvement (33.19
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