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Effect of Depth of Tillage on Yield of Upland Paddy and on Associated Weeds

Published online by Cambridge University Press:  03 October 2008

H. K. Pande  and
V. M. Bhan
H. K. Pande
Affiliation:
Agricultural Engineering Department, Indian Institute of Technology, Kharagpur, India
V. M. Bhan
Affiliation:
Agricultural Engineering Department, Indian Institute of Technology, Kharagpur, India
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Summary

Four depth of tillage treatments were given by ploughing to 7 cm. depth by bullock-drawn plough and 14, 21 and 28 cm. depth with a tractor-drawn mouldboard plough in 1962–63. A significant decrease in bulk density was observed with the 21 and 28 cm. ploughing, negatively correlated with dry matter of crop roots and yield of grain. The effectiveness of 28 cm. tillage in reducing the population and dry matter of weeds was significant when compared to tillage at 7 and 14 cm. and there were significant relations between dry matter of weeds and yield of grain. Crop roots under tractor tillage were significantly greater than with 7 cm. tillage. Grain yield was maximum under 28 cm. tillage followed by 21, 14 and 7 cm. deep tillage in that order. The higher grain yields were associated with a greater number of fertile tillers per metre of row and higher yields per tiller.

Type
Research Article
Information
Experimental Agriculture , Volume 2 , Issue 3 , July 1966 , pp. 225 - 232
Copyright
Copyright © Cambridge University Press 1966

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