Nitrogen and Weed Management in Maize Intercropped with Upland Rice

Autor:	Aliyu D. Usman, S. M. Misari, S.T.O. Lagoke, K. A. Elemo, J. A. Adigun
Rok vydání:	2002
Předmět:	Renewable Energy Sustainability and the Environment business.industry Field experiment Sowing Development Biology Upland rice Weed control medicine.disease_cause Agronomy Productivity (ecology) Agriculture Infestation medicine business Weed Agronomy and Crop Science
Zdroj:	Journal of Sustainable Agriculture. 21:5-16
ISSN:	1540-7578 1044-0046
Popis:	A field experiment was conducted during the 1994 and 1995 wet seasons on the research farm of the Institute for Agricultural Research, Samaru (11°11'N, 0.7°E 680 m) located in the northern Guinea Savannah ecological zone of Nigeria. The experiment was laid out in split-plot design with three levels of nitrogen (0, 60 and 120 KgN/ha) in the main plot and ten periods of weed removal/infestation in the sub-plot. The productivity of both maize and rice was enhanced by increased application of nitrogen fertilizer in both years in all the plots that were kept weed free from the initial 6 weeks after sowing (WAS) up to harvest. Weed infestation for the initial 3 WAS enhanced the productivity of these crops. However, there was no significant response of nitrogen application in the plots that were kept weed-free for only the initial 3 WAS and those weeds infested throughout the crop cycle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3686c75189ef6259395de41cb28ebdd7 https://doi.org/10.1300/j064v21n01_03 Zobrazit plný text záznamu