Effect of sources and levels of zinc on growth, yield and mineral composition of rice in alkali soil
2004
Singh, H.P. | Singh, T.N., Narendra Deva University of Agriculture and Technology, Faizabad (India). Directorate of Research)
Zinc application was found to have ameliorative effects on rice (Oryza.sativa L.) in alkali-soil. The increase in growth and yield attributes were dose-dependent. Soil application of 10 kg Zn ha-1 was adequate in partially reclaimed alkali soil with initial pH 10.3, exchangeable sodium percentage 85 and electrical conductivity of soil solution (1:2) 2.1 dS m-1. Zinc sulphate proved decidedly superior source of zinc over zinc frits. Zinc application increased chlorophyll and raised the tissue concentration of Zn, Ca, Mg, K and P, whereas Na content decreased. Thus, zinc modified elemental composition of plant tissues favourably and thereby accelerated plant growth and yield.
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