Studies on sowing time and nutrient management on performance of new genotype of Indian mustard (Brassica juncea (L.) Czernj. Cosson)
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Date
2021-03-31
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Palampur
Abstract
To 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.