Yield and weed density of Blackgram (Vigna mungo (L.) Hepper) as influenced by weed control methods.

Autor: Sahoo, S., Dhanapal, G. N., Goudar, Pavankumar, Sanjay, M. T., Lal, M. K.
Předmět:
Zdroj: Journal of Applied & Natural Science; Jun2017, Vol. 9 Issue 2, p693-697, 5p
Abstrakt: The study conducted with pre-emergent herbicides alone and with sequential application of postemergent herbicides at All India Co-ordinated Research Project (AICRP) on weed management, Gandhi Krishi Vignyan Kendra (GKVK), Bangalore in late rabi season of 2013 revealed the predominance of grasses over broad leaved weeds in blackgram. Interculture @ 20 days after sowing (DAS) and hand weeding @ 40 DAS resulted in higher yield (1182 and 5873 kg ha-1 seed and haulm yield, respectively) and least weed density of 41.33 m-2-2 during harvest. Uncontrolled weed growth recorded maximum population (70.00 m-2-2). During initial days pendimethalin 30 EC @ 0.75 kg a.i. ha-1 and alachlor 50 EC @ 1.0 kg a.i. ha-1 recorded significantly least weed population of 29.33 m-2-2 at p< 0.05 level of significance. Uncontrolled weed growth resulted in maximum reduction in yield of 65.64 per cent. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index