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Comparative efficacy of various weed control measures in weed dynamics, yield and profitability of direct seeded fine rice

Citation

Anjum, SA and Tanveer, M and Carrijo, D and Akbar, N and Ashraf, U and Ali, I and Zohaib, A and Manzoor, N, Comparative efficacy of various weed control measures in weed dynamics, yield and profitability of direct seeded fine rice, Pakistan Journal of Agricultural Science, 54, (1) pp. 129-134. ISSN 0552-9034 (2017) [Refereed Article]


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DOI: doi:10.21162/PAKJAS/17.5960

Abstract

Water and labour scarcity pushes researchers to explore alternate sowing methods for rice like aerobic direct seeding but weed infestation is the major hindrance to adapt this production system. In our study, mechanical, chemical and cultural approaches were employed as weed control measures. Weed dynamics and yield parameters were recorded and economic analysis was performed. All weed control measures significantly reduced the weed density and weed dry weight as compared to control and improved harvest index. Maximum control in total weed density and total weed dry weight was achieved by hoeing followed by chemical control. The order of treatment groups in decreasing total density, total weed dry matter production and increment in harvest index was as cultural, chemical and mechanical. However, substantially highest net returns (PKR 44,049/) and highest benefit cost ratio (BCR) (1.53) were obtained by post emergence application of Penuxsulam at the rate of 15 g a.i ha-1 followed by hoeing. Inter-culture, mulching technique and Sesbania drummondi intercropping scored 1.19, 1.13 and 1.21 BCR, respectively. Thus, hoeing with hoe (25 and 45 days after sowing) and post emergence application of Penoxsulamat the rate of 15 g a.i ha-1 were most effective, profitable and economical weed control options.

Item Details

Item Type:Refereed Article
Keywords:direct seeded rice, weed infestation, chemical control, hoeing, inter-culture, mulching
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Protection (Pests, Diseases and Weeds)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Agricultural and Veterinary Sciences
Author:Tanveer, M (Mr Mohsin Tanveer)
ID Code:125930
Year Published:2017
Deposited By:Agriculture and Food Systems
Deposited On:2018-05-16
Last Modified:2018-07-30
Downloads:0

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