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

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.

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Experimental Treatment MatrixClose ×

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Plant height (cm): Phosphorus 20 kg/ha +... vs Phosphorus 20 kg/ha +... vs Phosphorus 20 kg/ha +... vs Phosphorus 40 kg/ha +... vs Phosphorus 40 kg/ha +...Close ×

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Dry matter (g/plant): Phosphorus 20 kg/ha +... vs Phosphorus 20 kg/ha +... vs Phosphorus 20 kg/ha +... vs Phosphorus 40 kg/ha +... vs Phosphorus 40 kg/ha +...Close ×

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Introduction

Pearl millet Crop is a traditional name for Pearl Millet. It is an edible seed of the Pearl Millet plant species. Pearl millet crop cultivation is done in various varieties and is grown in various colours, such as white, yellow and grey. It is an important crop with many health benefits and is one of the most commercial crops. India is the largest Pearl millet -producing country, followed by the African country, Nigeria. Pearl millet [Pennisetum glaucum L.] is an important crop of rain fed areas of Africa India and Serves as staple food for West Africa. It is the most widely cultivated millet crop, occupying prominent position in global agriculture. India is the largest producer of pearl millets in world occupying about 9.4 million hector area with annual production 10.1million tones with average productivity of 1069 kg/ha. India is largest producer of pearl millets covering about 8.75 million ha of marginal and sub marginal lands primarily in the states of Rajasthan, Gujarat, Haryana, Uttar Pradesh and Maharashtra and ranking 3 rd after rice and wheat in acreage. In addition to its grain consumption as human feed, it is also as green fodder in India. Pearl millet may be an alternative crop that exhibits great advantages in physiological characteristics when compared to other cereals as it is resistant to drought, low soil fertility, high salinity and high temperature tolerance [Singh et al., 2019] [23] . Because of it drought escaping mechanism pearl millet can grow in areas that have extended dry periods. The balanced fertilization as shown in positive effects on various aspects of growth development and biological yield of the crop in comparison to nutrient use in single or in combination. In India, pearl millet is the fourth most widely cultivated food crop after rice, wheat and maize. During 2019-20, pearl millet was grown in 7.41 million ha with an average production of 10.3 million tonnes and 1391 kg/ha productivity (3rd advanced estimate from Directorate of Millets Development, 2020). Phosphorus (P) is an essential nutrient for growth and development of plant. Phosphorus plays a very important role in photosynthesis, respiration, energy storage cell division and other metabolic activities in plantlets and also it is very important for seed germination and root formation for plant growth and development (Hrinathan et al. 2016) [28] in plants, zinc plays a key role as a structural constituent or regulatory co-factor of a wide range of different enzymes in many important biochemical pathways. Zinc deficiency in the plant retards development and maturation of the panicles of grain crops. As in soils and plants, Zn deficiency is also a common nutritional problem in humans, predominantly in developing countries where diets are rich in cereal-based foods and poor in animal products. Enhancing Zn in plant derived food is one of the way to improve human health in developing countries where and when the local population cannot afford food sources from which zinc can be taken up easily in large enough quantities in the human gut. Therefore, present investigation 3 was undertaken on Effect of Phosphorus, Zinc and Zinc solubilizer on Growth, Yield and Economics of Pearl Millet (Pennisetum glaucum L.). To increase the availability of zinc for plants. zinc Solubilizer use to solubilize the fixed unavailable zinc into available form and that residue fertilizer can be utilize by succeeding crop. Therefore, an attempt was made to increase the productivity of pearl millet with different residual phosphorous and zinc levels, Kumawat et al.

[2018] [8] . Keeping an eye on the above aspects the present study entitled "Effect of Phosphorus, Zinc and Zinc solubilizer on growth of Pearlmillet." was carried out at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences. Prayagraj during 2023 Kharif Season.

Materials and Methods Experimental sites and soil

The experiment was conducted during the Kharif season 2023 at the Crop Research Farm, Department of Agronomy, Naini Agriculture Institute, Sam Higgin bottom University of Agriculture, Technology and Sciences, Prayagraj, U P. The Crop Research Farm is located at 250 24' 42"N latitude, 810 50' 56" E longitude and 98 m altitude from the sea level. This area is situated on the right side of the river Yamuna and by the opposite side of Prayagraj, Rewa Road about 5 km away from Prayagrajcity.

The soil been collected from the experimental site was tasted in laboratory and the results are been observed

Statistical analysis

All data were analyzed using the MS Excel software, and the results were expressed as the arithmetic mean value (±) standard deviation. The differences in the means were compared by the ANOVA. P <.05 was considered as statistically significant.

Result and Discussion

The maximum plant height was recorded with the application of Phosphorus 40 kg/ha with Zinc 2.5 kg/ha and Zinc Solubilizer (128.63 and 154.17 cm) at 60 DAS and at physiological maturity stages, respectively, followed by the application of Phosphorus

Conclusion

It is concluded that application Phosphorus 40 kg/h along with Zinc 2.5 kg/ha and Zinc Solubilizer (Treatment 5) recorded higher growth.

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