Parveen KumarSandeep2024-03-272024-03-272023-06https://krishikosh.egranth.ac.in/handle/1/5810207733The present study entitled “Performance of pearl millet (Pennisetum glaucum L.) hybrids to fertility levels under treated sewage water application.” was conducted at Research Area, Vegetable Science, CCSHAU, HISAR during Kharif 2021 and 2022 with the objective to study the effect of hybrids and fertility levels on growth, yield attributes, yield, nutrient uptake and economics of pearl millet under treated sewage water application. In the experiment two pearl millet hybrids viz. HHB 67 (Improved) and HHB 299 were taken along with five different fertility levels. Between hybrids, various phenological events viz. boot stage, flowering stage, milking stage and physiological maturity differ significantly while emergence did not differ significantly. Different fertility levels, did not differ significantly in respect of various phenological events viz. emergence, boot stage, flowering stage, milk stage while a significant influence was observed in physiological maturity. The growth parameters viz. [Plant height, total number of tillers plant-1, dry matter accumulation] and yield attributing characters [effective tiller plant-1, ear head length, ear head girth, test weight] and grain, stover yield differed significantly between hybrids and among fertility levels. Between hybrids, HHB 299 recorded higher value of these attributes and yield over HHB 67 (Improved). Among fertility levels, application of 75 per cent RDN + vermicompost @2.5 t/ha + FYM @ 2.5 t/ha resulted in higher yield and yield attributes during both years of study. Hybrid HHB 299 recorded higher NPK content and their uptake over HHB 67 (Improved) in pearl millet grain and stover while integrated nutrient management practices and 100 per cent RDN performed better over control, among fertility levels. Heavy metal content in both pearl millet grain and stover recorded lower in HHB 67 (Improved) over HHB 299 while integrated nutrient management practices resulted in lower heavy metal content in pearl millet grain and stover over 100 per cent RDN and control, among fertility levels. In terms of economics, HHB 299 performed better than HHB 67 (Improved) while higher gross returns was recorded with the application of 75 per cent RDN + vermicompost @2.5 t/ha + FYM @ 2.5 t/ha and higher net returns and B:C was recorded with 75 % RDN + FYM @ 5 t/ha. Hence, for enhancing crop growth characters, yield attributes, yield and monetary returns integrated nutrient management practices should be adopted.EnglishThesis