Effect of phosphorus with zinc and zinc solubilizer on the physical growth of pearl millet

Abstract

The physicochemical involvement of Zn in soil-plant systems. Zinc (Zn) is required for the metabolism of plants, enzyme function, and ion transport. Zinc-solubilizing rhizobacteria can convert insoluble zinc to an accessible form and increase Zn bioavailability in soil, which help mitigate Zn deficiency in crops. A field experiment was conducted during Kharif season of 2023 at Crop Research Farm Department of Agronomy. The soil was tasted in lab and contain pH range of 7.8, which is almost neutral and contain EC 0.41 (ds/m) of The treatments consisted of 3 levels of Zinc (0 kg/ha, 2.5 kg/ha and 5 kg/ha) with Zinc Solubilizer and 3 level of Phosphorus (20, 40 and 60 kg/ha). The experiment was laid out in a Randomized Block Design with 10 treatments and replication thrice. Application of Phosphorus 40 kg/ha with Zinc 2.5 kg/ha and Zinc Solubilizer (Treatment 5) recorded highest plant height (154.17cm), maximum plant dry weight (91.29 gm) However the highest CGR (42.80 g/m2/ day) and RGR (0.01270 g/g/days) are observed in (Treatment 7) Phosphorus 60 kg/ha+ Zinc 0 kg/ha + Zinc Solubilizer in between 40 to 60 DAS and in between 20 to 40 DAS accordingly.