Biogat-fert technique for maximizing water and fertilizer units productivity for potato crop

S. A. Ragab; A. M. Elgindy; M. S. Gaballah; H. M. Mehanna; Y. E.  Arafa

doi:10.53730/ijhs.v6nS2.5121

Authors

S. A. Ragab
nrc.samar@yahoo.com
Water Relations and Field Irrigation Dept., National Research Centre, Giza, Egypt
A. M. Elgindy Agric. Eng. Dept., Fac. of Agric., Ain Shams Univ., Cairo, Egypt
M. S. Gaballah Water Relations and Field Irrigation Dept., National Research Centre, Giza, Egypt
H. M. Mehanna Water Relations and Field Irrigation Dept., National Research Centre, Giza, Egypt
Y. E. Arafa Agric. Eng. Dept., Fac. of Agric., Ain Shams Univ., Cairo, Egypt

Keywords:

bio-fertilizers, azotobacter, bacillus circullans, bacillus megaterium, soil microbial characteristics, potato yield, drip irrigation

Abstract

Biogat-fert technique ensure to maximizing water and fertilizer unit productivity for potato crop, Two field experiments were carried out during growing seasons 2019-2020 and 2020-2021, at research farm of National Research Centre in Nubaria region, Egypt to study management of biogat-fert technique on potato crop under drip irrigation system in sandy soil conditions. Study factors were fertigation techniques (fertigation, biogat-fert and fertilizers). The following parameters were studied to evaluate the effect of study factors: (1) mineral and biological fertilizers effect of soil, (2) microbial number, (3) NPK ratio, (4) Yield of potato, (5) water use efficiency of potato, (6) Crop water production function. The results conducted that soil fertility was enhanced greatly in bio-fertilizer treatment. The average total N, total P and total K in 0–40 cm soil layers increased to 29.17, 26.67and 36.7% respectively. The average CFU of bacteria in soil layers increased by 15 Time. After drip irrigation, the CFU of bacteria had increased further, and reached more than 7.8× 10⁷CFU/g dry soil in the 0–40 cm soil layers. The results showed that the application of different bio-fertilizer along with fertilizers revealed significant positive impact on crop yield.

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