Informatics Publishing Limited

K. Ramamoorthy ¹, A. C. Lourduraj ¹, T. M. Thiyagarajan ¹, M. Prem Sekhar ², B. A. Steware ²

Affiliations
1 Directorate of Soil and Crop Management Studies, TNAU, Coimbatore- 641003, IN
2 Dryland Agriculture Institute, West Texas, US

Abstract

Most of the food and fibre production of the world is achieved under rainfed conditions. Among the various agronomic practices that could bring about immediate positive results in dryland areas, optimum and effective weed control is the first and foremost management practice. Hence, in this paper, an attempt has been made to review the weeds of dryland crops and cropping systems, factors influencing weed flora in dryland regions, critical period of crop weed competition, weed management in major dryland crops and cropping systems, tillage and weed management in dryland agriculture and future research priorities in the field of weed management in dryland agriculture.

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M. Vijaya Kumar ¹, P. Subbian ¹, A. C. Lourduraj ¹, R. Selvaraju ¹, S. Ramesh ¹

Affiliations
1 Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore - 641003, IN

Abstract

Sunflower is an important oilseed crop which ranks third in the world next to soybean and groundnut in the edible oil production. The productivity of sunflower can be increased with judicious use of inputs under higher plant population levels. Split application of N has been reported to favourably influence the nutrient uptake, growth, yield characters and seed yield of sunflower. In general, crop growth and dry matter accumulation of sunflower are higher at increased N and population levels. Reports of higher sunflower yield at higher plant population and N leve1s have been widely reported.

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