achieving the self-sufficiency in producing agricultural crops and decreasing the pressure on the available water resources need determining the fertile places for cultivation based on the suitable evaluating indices. in this research, the prioritization of different township in sistan and blouchestan province for onion cultivation, as one of the most important production in the province, was c...

in order to study the effects of planting systems on quantitative and qualitative characteristics of some onion genotypes, an experiment was conducted in a split plot arrangement in randomized complete block design with three replications in behbahan agriculture research station for two years (2012-2014). in this study two planting systems: onion set and transplant were assigned to main plots a...

An attempt was made to determine the overall farm-specific technical efficiency or inefficiency of onion farms of Bangladesh. Farm-level data were used for the estimation of the parameters of Cobb-Douglas stochastic frontier production function. The model for technical inefficiency effects in the stochastic frontier included age, experience, education, and farm size. The elasticity of output wi...

Onion maggot, Delia antiqua (Meigen) (Diptera: Anthomyiidae), is an important pest of onion, Allium cepa L., in northern temperate areas, especially in the Great Lakes region of North America Management of D. antiqua relies on insecticide use at planting, but insecticide resistance can cause control failures that threaten the long-term viability of this strategy. Delaying the time onions are pl...

This study was undertaken to evaluate natural mulches for weed control in organic onion (Allium cepa) production where current practices rely on hand-weeding or plastic mulch. Three experiments were conducted over 2 years, with two experiments conducted on-farm in different years and one experiment conducted on-station. Treatments consisted of hand-weeding or mulches of wheat (Triticum aestivum...

A field experiment was conducted at the `Research Farm` of Regional Seed Production Office of Lal Teer Seed Limited, Dinajpur, Bangladesh during November 2008 to April 2009. The study was conducted to investigate the effect of bulb size and planting spacing on seed production of cultivar Taherpuri onion. Three bulb sizes [small (5±2g), medium (10±2g), and large (15±2g)] and four planting spacin...

28 Research on threats to pollination service in agro-ecosystems has focused primarily on 29 the negative impacts of land use change and agricultural practices, such as insecticide use, on 30 pollinator populations. Insecticide use could also affect the pollination process, through non31 lethal impacts on pollinator attraction and post-pollination processes such as pollen viability or 32 pollen...

Bunching onion as well show great variability in seed yield among cultivars. Understanding the role of floral rewards and attractants to pollinator species is crucial improving crop yield. Nectar sugar concentration one most important factors affecting bee–flower interaction. The objective this work was determine differences nectar composition between bunching lines grown same location during t...