weed control Tag

06 Nov

Posted at 05:47h in Organic farming

जैवशाकनाशी:  जैविक कृषि में खरपतवार प्नबंधन हेतू उपकरण   In irrigated agriculture, weed control through chemical herbicides, creates spray drift hazards and adversely affects the environment. Besides, pesticide residues (herbicides) in food commodities, directly or indirectly affect human health. These lead to the search for an alternate method of weed management, which is eco-friendly. In this regard the biological approach is gaining momentum. Utilization of plant pathogens for weed control was first reported in the early 1900s, but the concept of using bioherbicides to control weeds attracted wide interest among weed scientists and plant pathologists after the Second World War. The earliest experiments simply involved fungus Fusarium oxysporum against prickly pear cactus (Opuntia...

02 Mar

Posted at 04:36h in Soil & Fertilizers

मृदा सोलराईजेसन - खरपतवार प्रबंधन के एक अच्‍छी तकनीक The impact of pesticide use on the environment is now well documented, and a more wide spread adoption of integrated weed management strategies and tactics is recommended in sustainable agriculture systems. Soil solarization is a novel technique of controlling soil borne pests including weeds. This hydrothermal process occurs in moist soil which is covered by a transparent plastic film for 4-6 weeks and exposed to sunlight during the warm summer months. The practice was first reported from Germany in 1888 and was first used commercially by USA in 1897. Soil propagules, as weed seeds, offer a wide range of tolerance to high...