Author(s):

BS Meena, BK Patidar, LK Meena, SN Meena and KC Meena

Abstract: A field experiment was conducted at Agricultural Research Station, Kota during the rabi seasons of 2017-18, 2018-19 and 2019-20 to find out suitable nutrient management practices for Indian mustard sown on clay loam soil after harvest of urdbean. The treatments consisted of 12 nutrient management practices viz.,T₁:control,T₂:100% P₄₀K₃₀ kg/ha,T₃:100% N₈₀P₄₀K₃₀ kg/ha,T₄:150% N₁₂₀P₆₀K₄₅ kg/ha, T₅:100% N₈₀P₄₀K₃₀+S₄₀ kg/ha,T₆:100% N₈₀P₄₀K₃₀+Zn₅ kg/ha, T₇:100% N₈₀P₄₀K₃₀+ B₁ kg/ha,T₈:100% N₈₀P₄₀K₃₀+ farm yard manure (FYM) 2.5 t/ha, T₉:100% N₈₀P₄₀ kg/ha,T₁₀: 100% N₈₀K₃₀ kg/ha,100% N₈₀P₄₀K₃₀+S₄₀+Zn₅+B₁ kg/ha+ FYM 2.5 t/ha,T₁₂:125% N₁₀₀P₅₀ K_37.5 kg/ha. Application of 100% RDF(N₈₀P₄₀K₃₀+S₄₀+Zn₅+B₁kg/ha) along with FYM 2.5 t/ha had significance influenced on branches/plant(16.36), siliquae /plant (230.77),seeds/siliqua (16.20), 1000-seed weight (5.32 g),seed weight/plant(15.00 g),seed yield(2517 kg/ha),oil content (39.30%), protein content(21.08%) and gross return(₹107774/ha) over control,100% P₄₀K₃₀ kg/ha,100% N₈₀ K₃₀ kg/ha and 100% N₈₀P₄₀ kg/ha and at par with rest of treatments. While the highest net return (₹82723/ha) and harvest index (32.47%) recorded under application of 125% RDF (N₁₀₀P₅₀K_37.5 kg/ha) which was significantly higher than control, 100% P₄₀K₃₀ kg/ha, 100% N₈₀P₄₀K₃₀ kg/ha, 100% N₈₀P₄₀K₃₀+ B₁ kg/ha, 100% N₈₀K₃₀ kg/ha and 100% N₈₀P₄₀ kg/ha and at par with rest of nutrient management treatments. The highest benefit cost ratio of 3.34 recorded under the same treatment, but it was significantly superior over control, 100% P₄₀ K₃₀ kg/ha, 100% N₈₀P₄₀ kg/ha and 100% RDF (N₈₀P₄₀K₃₀+S₄₀+Zn₅+B₁ kg+FYM 2.5 t/ha and at par with rest of treatments. Thus, the results showed that mustard fertilized with 100% RDF (N₈₀P₄₀K₃₀+S₄₀+Zn₅+B₁ kg/ha) along with FYM 2.5 t/ha was found beneficial for obtaining higher seed yield and net returns in irrigated areas of south-eastern Rajasthan.

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