Effect of Teak on Yield and Yield Components of Field Crops

Abstract

An experiment consisting of teak, field crops, fodder crops was started during 1984 on red gravelly soil at Main Research Station UAS, Dharwad under rainfed condition. The objective of the experiment was to study the effect of teak on yield and yield comoponents on associated crops. Teak was planted at 10m apart with 2m between plants. Pastures were planted in 1m strip either side of teak rows. Sorghum and groundnut were grown in interspace of teak rows during 1996 and 1997. Sorghum grain yield, effective population, grain and straw yield and 1000 grain weight decreased significantly in agroforestry system as compared to sole crop. Similarly groundnut yield, pod/haulm yield per plant, pod number, 100 kernal weight and effective population were lower in agroforestry system as compared to sole groundnut. Teak growth (height and dbh) was higher teak with field crops as compared to teak+pastures with field crops. Based on net returns, benefit cost ratio, teak with sorghum/ groundnut is economically viable agroforestry system in transitional zone.