Agronomic bio-fortification of pearlmillet (Pennisetum glaucum L.) through integrated nutrient management
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Date
2023-05
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CCSHAU, Hisar
Abstract
The present investigation entitled “Agronomic bio-fortification of pearlmillet (Pennisetum glaucum L.) through integrated nutrient management” was carried out at the Research Farm Area, Department of Agronomy, Chaudhary Charan Singh Haryana Agricultural University, Hisar during Kharif 2022 containing 12 treatments i.e. T1: Control, T2: RDF (156.25:62.5:0) kg ha-1 N:P:K through inorganic source, T3: RDF + BIOMIX, T4: 50% RDN through inorganic source + 50% RDN through FYM + BIOMIX, T5: 50% RDN through inorganic source + 50% RDN through Vermicompost + BIOMIX, T6: 75% RDN inorganic source + 25% N through FYM+BIOMIX, T7: 75% RDN inorganic source + 25% N through vermicompost + BIOMIX, T8: RDF + 25 kg ha-1 ZnSO4 (soil application), T9: RDF + 0.5% ZnSO4 (foliar spray) at 25 DAS, T10: RDF + 0.5% FeSO4 (foliar spray) at 25 DAS, T11: RDF + 0.5% ZnSO4 + 0.5% FeSO4 at 25 DAS, T12: RDF + 0.5% ZnSO4 + 0.5% FeSO4 + BIOMIX. The experiment was conducted in randomized block design with three replications. The crop was sown on 12 July, 2022 using pearl millet hybrid „HHB 67 improved‟. Among the treatments T12 (application of RDF (156.25 N, 62.5 P2O5 Kg ha-1) + foliar spray of 0.5 % solution of each ZnSO4 and FeSO4 at 25 DAS + BIOMIX) closely followed by treatment T11 (RDF + 0.5% ZnSO4 + 0.5% FeSO4 at 25 DAS) was recorded with significantly higher grain yield (3002 kg ha-1), protein content (11.59 %), zinc content (67.47 ppm), iron content (73.48 ppm), net returns (₹ 25,716) and B:C (1.44), which were 7.1, 2.6, 5.7, 2.9, 9.4 and 4.3 per cent higher over RDF (156.25 N, 62.5 P2O5 Kg ha-1) might be due to significantly higher growth parameter viz., plant height (191.67 cm), leaf area index (2.67), number of effective tiller plant-1 (4.05), ear head length (23.37 cm), test weight (10.90 g). So, to get higher yield, economic return and better quality, pearlmillet growers may go for integrated nutrient management using RDF (156.25 N, 62.5 P2O5 Kg ha-1) + foliar spray of 0.5 % solution of each ZnSO4 and FeSO4 at 25 DAS + BIOMIX.