Agronomic management for maximising the productivity of late sown wheat
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Date
2022-07
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Chaudhary Charan Singh Haryana Agricultural University hisar
Abstract
A field experiment entitled “Agronomic management for maximising the productivity of late sown wheat” was conducted during Rabi season (2018-19 and 2019-20) at research farm, Department of Agronomy, CCS HAU, Hisar. The experiment consisted of six varieties in main plots i.e. WH 1124, WH 1105, HD 3059, HD 2967, WH 1021 and HD 3086, six seeding treatments in sub plots (T1- recommended seed rate (100 kg ha-1), T2- 25% higher seed rate (dry) than recommended with 18 cm row spacing, T3- 25% higher seed rate (dry) than recommended + reduced row spacing (15cm), T4- 25% higher seed rate (soaked) than recommended + reduced row spacing (15cm), T5- 25% higher seed rate (soaked) than recommended + reduced row spacing (15cm) + 25% higher NPK than recommended, T6- 25% higher seed rate (soaked) than recommended + reduced row spacing (15cm) + 25% higher NPK than recommended + 2.5% urea + 0.5% ZnSO4 spray at anthesis). The 36 treatment combinations were tested in split plot design with three replications. Based on research investigation, it was found that that HD 3086 and WH 1124 were best varieties for late sowing with T6 (25% higher seed rate (soaked) than recommended + reduced row spacing (15cm) + 25% higher NPK than recommended + 2.5% urea + 0.5% ZnSO4 spray at anthesis) seeding treatment being significantly at par with T5 (25% higher seed rate (soaked) than recommended + reduced row spacing (15cm) + 25% higher NPK than recommended). Among the varieties, WH 1124 recorded maximum plant height whereas, other growth parameters, NPK content and uptake were recorded maximum with HD 3086 variety and lowest with WH 1021.The straw yield and biological yield (69.7 and 117.3 q ha-1) was observed highest during 2018-19 compared to 2019-20 where it was recorded maximum with HD 3086 (68.5 and 118.4 q ha-1). Highest net returns were obtained under variety HD 3086 (₹. 50047 and 53293) with B:C of 1.86 and 1.89, respectively, which was statistically at par WH 1124. In case of seeding treatments, T6 recorded highest yield and yield attributes which were found at par with treatment T5.