Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss] Influenced by Different Levels of Nitrogen, Phosphorous and Potassium in S-E Rajasthan
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Date
2020-12-08
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COLLEGE OF AGRICULTURE, UMMEDGANJ, KOTA
Abstract
A field experiment entitled “Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss] Influenced by Different Levels of Nitrogen, Phosphorous and Potassium in S-E Rajasthan” was conducted at, Agricultural Research Station, Ummedganj, Kota (Rajasthan) during Rabi season 2019-20 on clay loam soil. The experiment comprised 18 treatments combinations, having three levels of nitrogen viz., 80, 100 and 120 kg/ha, two levels of phosphorous viz., 40 and 50 kg/ha and three levels of potassium viz.,15, 30 and 45 kg/ha laid out in split plot design with three replications.
Results showed that application of 100 kg N/ha had significant effect on plant height, dry matter accumulation per meter row length at all growth stages, primary and secondary branches/plant, number of siliquae/plant, seeds/siliqua, length of siliqua, 1000-seed weight, seed yield (2764 kg/ha), biological yield (9772 kg/ha) oil and protein content in seed over 80 kg N/ha and observed at par with 120 kg N/ha. Significantly higher net return (₹ 109952/ha) and B: C ratio (4.17) were also recorded with the application of 100 kg N/ha and it was remained at par with 120 kg N/ha. The available nitrogen (306.33 kg/ha) in soil significantly increased under application 120 kg N/ha over 80 and 100 kg N/ha, whereas available phosphorous (53.61 kg/ha) recorded significantly higher with application of 100 kg N/ha and found at par with 120 kg N/ha. While available potassium did not significantly affected by varying levels of nitrogen application.Application of 50 kg P2O5/ha produced significantly higher plant height at 60 and 90 DAS except at harvest, dry matter accumulation per meter row length at all growth stages, primary and secondary branches/plant, number of siliquae/plant, seeds/siliqua, length of siliqua, 1000-seed weight, seed yield (2830 kg/ha), stover yield (6929 kg/ha), net return (₹ 112508/ha) and B: C ratio (4.23) over 40 kg P2O5/ha. While, oil content, protein content and available nitrogen, phosphorous and potassium in soil were not influenced significantly with application of phosphorous levels.
Among potassium levels, application of 30 kg K2O/ha was found significantly superior plant height at 60 DAS, dry matter accumulation per meter row length at harvest, primary branches/plant, number of siliquae/plant, seeds/siliqua, length of siliqua, 1000-seed weight, seed yield (2756 kg/ha), biological yield (9530 kg/ha) oil content, net return (₹ 109135/ha) and B: C ratio (4.14) over 15 kg K2O/ha and found at par with 45 kg K2O/ha. Whereas, secondary branches/plant and stover yield could not influenced significant by potassium levels, however protein content increased significantly up to 45 kg K2O/ha. Available nitrogen and potassium were significantly increased with application of 30 kg K2O/ha as compared to 15 kg K2O/ha and at par with 45 kg K2O/ha.
Description
Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss] Influenced by Different Levels of Nitrogen, Phosphorous and Potassium in S-E Rajasthan