Glyphosate is the most widely used herbicide for postemergence weed control in Florida citrus (Citrus spp.). Variation in susceptibility of certain weed species to glyphosate has been observed in last few years. Therefore, understanding the mechanism underlying such phenomenon is required. Experiments were conducted to evaluate differences in tolerance of four weed species to glyphosate by quan...

Introduction There is a vast data gap for the national and regional greenhouse gas (GHG) budget from different smallholder land utilization types in Kenya sub-Saharan Africa (SSA) at large. Quantifying soil GHG, i.e., methane (CH4), carbon dioxide (CO2), nitrous oxide (N2O) emissions types, essential filling gap. Methods We quantified GHG Western Kenya. conducted 26-soil sampling campaign types...

to investigate the effects of intercropping of basil (ocimum basiilicum l.) and cowpea (vigna unguiculata l.), different levels of nitrogen fertilizers on basil and cowpea yield, an experiment was carried out during 2010 and 2011. experimental factor were included weed treatment (weeding and unweeding), three levels of nitrogen fertilizer (0, 50 and 100 kg ha-1), different planting ratio, (p1: ...

Sorghum (Sorghum bicolor L.) is one of the globally important cereal crop after wheat, maize, rice and barley. Sorghum is a unique crop among the major cereals and the staple food and fodder crop of the world’s poor and most food-insecure populations, located primarily in the semi-arid tropics. Sorghum is grown on 43.81 million ha area in the world, producing about 65.42 million tonnes grain wi...

in order to study the weeds frequency and dry matter in corn and cowpea sole cropping and intercropping systems, an experiment using replacement and additive techniques was conducted using different combination of intercropping in seven levels with ratio of 1:1 (50% corn + 50% cowpea), 1:2 (33% + 67%), 2:1 (67% + 33%), (100% + 20%), (100% + 10%), 100% corn and 100% cowpea, two levels optimal an...

abstract in order to evaluate of yield and yield components of eight wheat cultivars against flix weed (descurainia sophia), an experiment was conducted using a factorial arrangement of treatments in a randomized complete block design with four replications during 2003-2004 growing season in varamin region. the wheat cultivars were tabasi, roshan, karaj2, azadi, niknejad, mahdavi, shiraz and pi...

Weed interference is a major threat to rice production, leading high yield reduction and reduced profitability. Therefore, field experiments were conducted evaluate the effect of different timings weed control on growth upland in 2015 2016 cropping seasons. The treatments consisted periods when crop was allowed be weed-infested for first 3, 6 9 weeks after sowing (WAS) weeds controlled WAS. Two...

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...

in order to evaluate the effects of intercropping of maize- peanut, weeding and their planting design on weed population dynamics, an experiment was conducted as a factorial experiment in the form of rcbd with three replications at the research farm of agriculture center of zabol university (iran) in 2012. the treatments including sowing system in four levels as first factor  (sole maize, sole ...