Sharma, G. D.Rana, Akash2022-03-092022-03-092021-03-31https://krishikosh.egranth.ac.in/handle/1/5810183217To find out the suitable sowing time for achieving higher productivity and profitability under different nutrient management practices, a field experiment entitled “Studies on sowing time and nutrient management on performance of new genotype of Indian mustard (Brassica juncea (L.) Czernj. Cosson)” was conducted at Experimental Farm of Department of Agronomy, CSK, Himachal Pradesh Krishi Vishwavidyalaya Palampur during Rabi 2019-2020. The experiment was laid out in Factorial Randomized Block Design with two factors and was replicated thrice. The treatments consisted of two sowing dates (11th October and 26th October) and six nutrient management practices viz., application of recommended dose of fertilizers (RDF) through chemical fertilizers, Organic farming package, Natural farming, Natural farming + 5 t FYM/ha, Natural farming + 7.5 t FYM/ha and Natural farming + 10 t FYM/ha. The results so obtained revealed that the early sown crop i.e. on 11th October resulted in significant increase in growth and development ( plant height, dry matter accumulation, emergence count), yield attributes (number of siliquae/plant, number of seeds/siliqua, siliqua length and test weight) and grain and biological yield as compared to the late sown crop i.e. on 26th October. Similarly higher values of oil content, oil yield, gross return, net return and B: C ratios were also observed with early sowing. Among nutrient management practices, application of RDF through chemical fertilizers remained superior in terms of growth and development parameters, yield attributes (number of siliquae/plant, siliqua length, number of seeds/ siliqua and test weight), seed and biological yield, oil content and oil yield and various economic indices including gross return, net return and B: C ratios. Improvement in available nitrogen, phosphorus and potassium content in soil was observed under organic farming as well as in treatment where natural farming practices were supplemented with 10 t FYM/ha application. Soil pH, organic carbon and bulk density status of the soil was not influenced by nutrient management practices. Thus, early sowing along with the application of RDF through chemical fertilizers may be recommended for higher yield of Trombay Him Palam Mustard-1.EnglishThesis