AZOLLA AS BIOFERTILIZER PDF

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Nitrogen Fixation with Non-Legumes pp Cite as. A field study was conducted to observe the effect of Azolla on rice yield, N uptake and its residual effect on subsequent wheat crop. Azolla developed into a thick mat due to the mild temperature prevailing during the rice season.

Azolla was grown as intercrop with rice in field conditions and was used as cover, and also as incorporated treatment alone and in combination with a low dose of urea. The grain yield of wheat, grown after rice harvest and without any fertilizer application, was significantly higher for Azolla than control and chemical-N treatments.

The results of this field study indicated that Azolla can successfully be used for increasing crop yield in a rice-wheat cropping system.

Unable to display preview. Download preview PDF. Skip to main content. This service is more advanced with JavaScript available. Advertisement Hide. Use of Azolla as biofertilizer to enhance crop yield in a rice—wheat cropping system under mild climate. This process is experimental and the keywords may be updated as the learning algorithm improves. This is a preview of subscription content, log in to check access. Choudhry M B Rice soils of Pakistan. In: IRRI, eds. Soil and Rice.

Google Scholar. IRRI Effect of Azolla as an organic source of nitrogen in rice-wheat cropping system. J Agro. Crop Sci.

CrossRef Google Scholar. An evaluation of some factors that limit the widespread use of Azolla in rice cultivation. Nitrogen Fixation with Non-Legumes. American University in Cairo Press, Cairo, — Kluwer, Dordrecht, p. Westview Press, Boulder, Co. Biological nitrogen fixation: an efficient source of nitrogen for sustainable agricultural production?

Plant Soil, , 3— Watanabe I In: IRRI eds. Azolla Utilization. Watanabe I, Ventura W Long-term effects of Azolla and Sesbania on rice yield and fertility of tropical wetland rice soils.

Chinese Academy of Science, Nanjing, China, — Potential role of Azolla as green manure for rice in Nile Delta under different levels of inorganic fertilization. Nitrogen Fixation with Non-legumes. Malik There are no affiliations available. Personalised recommendations. Cite chapter How to cite? ENW EndNote. Buy options.

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Biofertilizer

Celoria, Milan, Italy. Azolla is a floating pteridophyte, which contains as endosymbiont the nitrogen-fixing cyanobacterium Anabaena azollae Nostocaceae family. Widely cultivated in the Asian regions, Azolla is either incorporated into the soil before rice transplanting or grown as a dual crop along with rice. Of the herbicides tested, Propanil permitted the survival of growing Azolla. Azolla is a heterosporous pteridophyte, with seven species. It contains, as endosymbiont, Anabaena azollae Strasburger, a nitrogen fixing cyanobacterium Nostocaceae family.

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Azolla as a Biofertilizer in Coffee Plantations

Fertilizes add these to the soil and may be organic composed of organic matter or inorganic made of simple, inorganic chemicals or minerals. Inorganic nitrogen fertilizers are mostly synthesized by the Haber-Bosch Process and the high yields achieved by modern agriculture are only possible because of the worldwide use of inorganic nitrogen fertilizers. Almost million tons of nitrogen fertilizer per year are now needed every year to maintain this output — more than ten times the amount used in Less than half of the nitrogen provided by chemical fertilizers are utilized by plants and the remaining nitrogen leaches into the soil and freshwater bodes where causes enormous damage to wildlife.

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Azolla, A Biofertilizer to Improve Soil Fertility

Nitrogen Fixation with Non-Legumes pp Cite as. A field study was conducted to observe the effect of Azolla on rice yield, N uptake and its residual effect on subsequent wheat crop. Azolla developed into a thick mat due to the mild temperature prevailing during the rice season. Azolla was grown as intercrop with rice in field conditions and was used as cover, and also as incorporated treatment alone and in combination with a low dose of urea. The grain yield of wheat, grown after rice harvest and without any fertilizer application, was significantly higher for Azolla than control and chemical-N treatments. The results of this field study indicated that Azolla can successfully be used for increasing crop yield in a rice-wheat cropping system.

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