Vol. 5 (6) : November-December 2014 issue
Green Farming Vol. 5 (6) : 1127-1130 ; November-December, 2014
Study of productivity, runoff, soil and nutrient loss in cotton under contour cultivation practices
S.M. TALEY1*, S.C. VILHEKAR2, S.M. PONGDE3
Agro-ecology and Environment Centre, Dr. Panjabrao Deshmukh Agriculture University, Akola-444 104 (M.S.)
Designation : 1Director *(smtaley@rediffmail.com) , 2,3SRF
Subject : Water and Natural Resource Management, Water Conservation Engg., Water Harvesting, Farm Pond, Sewage Water, Irrigation
Paper No. : P-1590
Total Pages : 4
Received : 01 March 2014
Revised accepted : 08 November 2014
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Citation :
S.M. TALEY, S.C. VILHEKAR and S.M. PONGDE. 2014. Study of productivity, runoff, soil and nutrient loss in cotton under contour cultivation practices. Green Farming Vol. 5 (6) : 1127-1130 ; November-December, 2014
ABSTRACT
The study was undertaken at Agro-ecology and environment Farm, Dr. PDKV, Akola to find the impact of contour cultivation practices on runoff, soil & nutrient loss and physico-chemical properties of soil. The study area was divided into three plots (T1, T2 and T3) under cotton (AKA - 07). The experiments were designed in Randomized Block Design with 4 replications. The land slope was maintained at 1.6 per cent in shallow soil. Each plot was treated with different cultivation practices viz., T1- Along the slope cultivation with opening of the tide, T2 – contour cultivation with opening of alternate furrows and T3 – contour cultivation with opening of furrows (R& F). Runoff was measured by H' flume with automatic stage level recorder installed at outlet of each plot. Amount of soil in runoff samples was determined by oven dry method. The analysis of soil samples was done to find out the nutrient losses (N, P & K) in the soil. Moisture content at 20, 40, 80 DAS and at harvest upto the depth of 60cm was recorded. Changes in physico-chemical properties of soil were studied during the crop period. Cotton was sown on 2nd July 2012 and harvested by four picking (duration of crop – 152 days). The results of the study showed that the runoff, soil & nutrient loss was found lowest (0.79%) in T3 followed by T2 (4.09 %) and T1 (30.70 %). The moisture levels were also found to be better in T3 followed by T2 and T1. The bulk density was found to be improved in T3 (1.35) followed by T2 (1.41) and T1 (1.54). Field capacity was also found to be increased under T3 compared to other treatments. While, Organic carbon and soil resistance was found to be reduced in T3 followed by T2 and T1. From the study it reveals that the treatment T3 - contour cultivation with opening of furrows (R& F) is effective in controlling runoff, soil & nutrient loss and improving physico-chemical properties of soil compared to other treatments.
Key words :
Contour, Cotton, Furrow, Nutrient loss, Runoff, Soil loss, Soil properties.