Weed Interference Periods in Pre-Sprouted Sugarcane Seedlings
نویسندگان
چکیده
منابع مشابه
the influence of nitrogen and weed interference periods on corn
abstract in order to evaluate the influence of nitrogen application and duration of weed interference on corn (zea mays l.) yield and yield components, a field study was conducted in 2004 at the ferdowsi university of mashhad research field. the experimental design was a randomized complete block with a factorial treatment arrangement replicated three times. nitrogen fertilizer was applied at r...
متن کامل[Assessment of health-related quality of life of sugarcane cutters in the pre-harvest and harvest periods].
OBJECTIVE To assess health-related quality of life in sugarcane cutters. METHODS Longitudinal study conducted in a sugar and ethanol plant located in the western region of the State of São Paulo (Southeastern Brazil) from April (pre-harvest) to October (harvest) 2010. A total of 44 sugarcane cutters, smokers and non-smokers, was evaluated in three periods: pre-harvest, at the end of the third...
متن کاملDetermining Critical Weed Competition Periods for Black Seed
Effect of weed competition periods on weeds and yield of black seed was studied through field experiments conducted at Agronomic Research Area, University of Agriculture, Faisalabad during winter 2006-07 and 2007-08. Weeds were allowed to compete with the crop for 40, 50, 60, 70, 80 days after sowing and throughout the growth season along with a weed free treatment. The data on weed density and...
متن کاملEffects of Water on Recovery of Weed Seedlings Following Burial
Recovery of common agricultural weeds after burial by soil was studied in four greenhouse and three field experiments. Species studied included velvetleaf, Powell amaranth, common lambsquarters, barnyardgrass, and giant foxtail. Seedlings were bent over before burial to simulate the effect of the impact of soil thrown by a cultivator. Altogether, more than 35,000 seedlings were marked and obser...
متن کاملFactors Influencing the Numbers of Seedlings Obtained from Sugarcane Crosses
Reasons for low numbers of seedlings from crosses made in recent years were investigated. High temperature and low humidity at the time of pollination decreased seedling numbers in some years. Photoperiodism, time of flowering and nutrition could also have affected the numbers of seedlings obtained.
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ژورنال
عنوان ژورنال: Planta Daninha
سال: 2019
ISSN: 1806-9681,0100-8358
DOI: 10.1590/s0100-83582019370100105