Informatics Publishing Limited

C. Sudhalakshmi ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN

Abstract

Field experiments were conducted to bringout the impact of modified crop management options viz., modified planting/direct seeding, limited irrigation, conoweeding and green manuring over conventional planting, irrigation, weeding and nutritional strategies on the nitrogen productivity of rice hybrids CORH-2 and ADTRH-1. Planting of younger seedlings/direct seeding recorded higher nitrogen productivity over conventional planting during active tillering (AT) as well as panicle initiation (PI) in CORH-2 and from active tillering to 50% flowering in ADTRH-1. Irrigation methods lowered nitrogen productivity in ADTRH-1. Weeding and green manuring did not have much influence on nitrogen productivity of rice hybrids.

Keywords

Conoweeding, Green Manuring, Limited Irrigation, Nitrogen Productivity.

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