EFFICIENCY OF MINERAL FERTILIZER IN ONION SEED PRODUCTION
نویسندگان
چکیده
منابع مشابه
Indirect Effects of Field Management on Pollination Service and Seed Set in Hybrid Onion Seed Production.
Pollination in crops, as in native ecosystems, is a stepwise process that can be disrupted at any stage. Healthy pollinator populations are critical for adequate visitation, but pollination still might fail if crop management interferes with the attraction and retention of pollinators. Farmers must balance the direct benefits of applying insecticide and managing irrigation rates against their p...
متن کاملEffect of Bulb Size and Plant Spacing on Seed Production of Onion
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...
متن کاملInsecticide use in hybrid onion seed production affects pre - and post - pollination processes 21 22
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...
متن کاملPerformance of novel insecticide seed treatments for managing onion maggot (Diptera: Anthomyiidae) in onion fields
Management of onion maggot, Delia antiqua (Meigen), in onion requires the use of an insecticide applied at planting. Insecticide resistance and a dearth of available products have stimulated an effort to identify new insecticides for onion maggot control, especially chemistries that can be delivered as seed treatments. Onion seeds film-coated with fipronil, spinosad, clothianidin or thiamethoxa...
متن کاملScreening of Local and Exotic Onion (allium Cepa L.) Cultivars for Seed Production Potentiality
Onion (Allium cepa L., 2n=16) is a cross-pollinated and biennial short type vegetable and most of the important spice as well as vegetable crops throughout the world. Bulb is the main edible portion of onion plant, which is a modified organ and constituted by the thickened fleshy leaf sheaths and stem plate (Purseglove, 1988). The leading onion producing countries of the world are China, India,...
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ژورنال
عنوان ژورنال: Vegetable crops of Russia
سال: 2013
ISSN: 2072-9146
DOI: 10.18619/2072-9146-2013-4-35-38