Journal of FARM SCIENCES, Vol 33, No 1 (2020)

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Productivity of mungbean (Vigna radiata L. Wilczek) as influenced by organics (vermicompost and neem cake) and natural phosphate during summer

VEERESH *, LOKANATH H. MALLIGAWAD, MANJUNATH HEBBARA, S.A. GADDANAKERI

Abstract


A field experiment was conducted during summer 2018 to study the response of mungbean to the application of
organics [vermicompost (VC) and neem cake (NC)] and natural phosphate (rock phosphate) (RP). The experiment consisted
of ten treatments [Control (Absolute control), VC @ 1.00 t/ha, VC @ 1.50 t/ha, VC @ 2.00 t/ha, VC @ 1.00 t/ha + NC @
500 kg/ha, VC @ 1.50 t/ha + NC @ 500 kg/ha, VC @ 2.00 t/ha + NC @ 500 kg/ha, VC @ 1.00 t/ha + NC @ 500 kg/ha + RP
@ 243.33 kg/ha, VC @ 1.50 t/ha + NC @ 500 kg/ha + RP @ 232.50 kg/ha and VC @ 2.00 t/ha + NC @ 500 kg/ha + RP @
221.67 kg/ha] and laid out in Randomized Complete Block Design with three replications. Results indicated that application
of vermicompost alone (1.00, 1.50 and 2.00 t/ha) or vermicompost (1.00, 1.50 and 2.00 t/ha) + neem cake (500 kg/ha) or
vermicompost (1.00, 1.50 and 2.00 t/ha) + neem cake (500 kg/ha) + rock phosphate (221.67, 232.50 and 243.33 kg/ha)
improved growth parameters (total dry matter production/plant and leaf area index), number of nodules and nodule dry
weight; yield components (number of pods/plant, seed weight/plant and 100 seed weight), seed yield, harvest index, crude
protein yield and post harvest observations (seed germination and seedling vigour index) in mungbean over control.
Application of rock phosphate in addition to the application of vermicompost + neem cake did not exert significant
influence on yield components and seed yield of mungbean. Higher seed yield (1563 kg/ha) of mungbean and profitable net
monetary returns (` 53,418/ha) (without the premium price for organically produced seeds) were obtained with the supply
of 27.10 kg N, 6.20 kg P2O5 and 12.45 kg K2O/ha through the application of organics (VC @ 1.00 t/ha + NC @ 500 kg/ha)
under organic agriculture production system.


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