Journal of FARM SCIENCES, Vol 27, No 4 (2014)

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Effect of insitu moisture conservation practices in deep clay soils on growth and yield of maize (Zea mays L.) under rainfed condition

Vivek S. Devaranavadagi, S. Santhana Bosu

Abstract


A field experiment was conducted at the Cotton Research Station, Veppanthattai, Perambalur district of Tamil Nadu between October 2012 to March 2013 to study the effect of different insitu moisture conservation practices. The main plot treatments (4) comprised summer ploughing + harrowing, chisel ploughing + harrowing, summer ploughing + chisel ploughing + harrowing and incorporating coir pith (5 tons/ha) by coir pith applicator. The subplot treatments (5) included broad bed furrow, ridges and furrow, random tied ridging, basin listing and conventional method. Significantly higher and consistent availability of soil moisture (12.6-33.5 %) was recorded by incorporating coir pith using coir pith applicator as compared to other main plot treatments and among subplots, broad bed furrow conserved higher soil moisture (33.5 %) followed by ridges and furrows (34.3 %). Maximum plant height (175.98 cm) and dry matter production (11545.0 kg/ha) was observed in coir pith application with broad bed furrow treatment. Broad bed furrow increased the yield by 23.38 % (5431kg/ha) over the control. Hence, coir pith application with broad bed furrow was found to be the best practice for enhanced soil moisture availability as compared to other conservation practices for deep clay soils.

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