Bio-preparates support the productivity of potato plants grown under desert farming conditions of north Sinai: Five years of field trials

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• 作者：Mohammed T. Abbas ; Mervat A. Hamza ; Hanan H. Youssef ; Gehan H. Youssef ; Mohamed Fayez ; Mohamed Monib ; Nabil A. Hegazi
• 关键词：Potatoes ; Organic farming ; Rhizospheric microorganisms ; Biofertilizers ; Biocontrol ; North Sinai
• 刊名：Journal of Advanced Research
• 出版年：January, 2014
• 年：2014
• 卷：5
• 期：1
• 页码：41-48
• 全文大小：602 K

文摘

Organic agriculture as well as good agricultural practices (GAPs) intrigues the concern of both consumers and producers of agricultural commodities. Bio-preparates of various rhizospheric microorganisms (RMOs) are potential sources of biological inputs supporting plant nutrition and health. The response of open-field potatoes to the application of RMO bio-preparates, the biofertilizer 鈥淏iofertile鈥?and the bioagent 鈥淏iocontrol鈥? were experimented over 5 successive years under N-hunger of north Sinai desert soils. Both vegetative and tuber yields of a number of tested cultivars were significantly improved due to rhizobacterial treatments. In the majority of cases, the biofertilizer 鈥淏iofertile鈥?did successfully supply ca. 50% of plant N requirements, as the yield of full N-fertilized plants was comparable to those received 50% N simultaneously with bio-preparates treatment. The magnitude of inoculation was cultivar-dependent; cvs. Valor and Oceania were among the most responsive ones. Bio-preparate introduction to the plant-soil system was successful via soaking of tubers and/or spraying the plant canopy. The 鈥淏iocontrol鈥?formulation was supportive in controlling plant pathogens and significantly increased the fruit yields. The cumulative effect of both bio-preparates resulted in tuber yield increases of ca. 25% over control.