Journal of FARM SCIENCES, Vol 13, No 3 (2000)

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Fertigation and Its Influence on Biomass and Nutrient Uptake in Teak

S.M. Mutanal, A.S. Prabhakar, B.S. Nadagoudar

Abstract


A field trial on fertigation in teak was initiated during 1995 on medium black soils at Teak Farm' Murakatti, Dharwad under drip irrigated conditions. Teak was planted at 2 x 2 m spacing. Thafactorial experiment consisted of three fertilizer levels viz., D1-100:50:100, D2-200 : 100: 200, D3-300:150:300, N : P205: K20 kg ha-1 and five intervals of fertigation, viz., Frtwo, F2-three, F3-four, F4 - six splits a year. F5- soil application in two splits. Biomass of teak increased by 9.6 and 6.1 per cent in D2 and D2 level as compared to D1 level. Uptake of nutrients (NPK) was increased significantly under fertigation with D2 and D3 levels fertigation than the D1 level. The concentration of nutrients (NPK) was significantly higher during 1997 with application D3 and D2 level as compared to D1 levels. Uptake of nutrients was in order of N > K > P and increased with increase in levels of fertilizer dose. Total biomass of teak increased by 20 and 30 per cent with six splits of fertigation as compared that of soil application. Fertigation in six splits in a year resutled in higher amount of Nutrient uptake a copared to two splits of fertigation or soil application. Fertigation saved NPK by 33% as compared to soil application.

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