Wheat Productivity as Affected by Replacement of Mineral Fertilizers (NPK) With PGPR, as Biofertilizer in Combination with Compost as Organic Fertilizer under New Reclaimed Sandy Soil
Keywords:Plant Growth Promoting Rhizobacteria (PGPR), Biofertilizers, Organic fertilizer, wheat vegetate growth, yield and its components
A field experiment was carried out on a sandy soil at own farm at Ismailia Governorate, Egypt during two winter season of 2020/2021-2021/2022 and study the effect of applied both Bio and organic fertilizers in combination with different levels of mineral NPK fertilizer doses on growth yield and yield component as well as to replacement same amounts of mineral (chemical) NPK fertilizer, to reducing agricultural coast and reducing the environmental of pollutants. In this regard using some rhizobacteria namely B. ploymixa, B. megatrium and B. cerculans as plant growth promoting rhizobacteria (PGPR) as biofertilizertion and plant compost as organic fertilization. Mineral NPK fertilizers were applied at 4 levels100, 75, 50 and 25% from recommended fertilized doses and bio organic fertilizers were applied in combination with 75, 50, and 25% NPK mineral fertilizers levels. The experiment was laid out in
randomized complete block design (RCBD). The obtained results revealed that, application of both bio and organic fertilizers did support and had an activation effect on vegetative growth, yield and yield component of wheat plant and increased plant stimulation of biomass, nutrients uptakes under lower levels of mineral NPK fertilizers (75, 50 and 25%) as compared to the plant received 100% NPK mineral fertilizer dose alone. At vegetative growth stage, plant height, number of tillers and plant dry wight gave significant increases under treated with bio and organic fertilizers as compared to untreated ones as well as plant N, P and K content. In general, application of both bio and organic fertilizer led to scrod percentage increases at number of tillers (9%), N number of grain yield (24%), straw yield (13%) and grain yield (14%) as compared to applied mineral NPK fertilizer as such. On the other word, application of bio and organic fertilizer is a good agricultural practice for productivity of wheat crop in sandy soil, reduce the reliance on mineral NPK fertilizers and minimize environmental pollution.
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