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The performance of coriander and fenugreek in Poplar plantation established in October, 2012-13 at 5 x 4 m, 10 x 2 m and 18 x2 x 2 m spacings was studied at CCS Haryana Agriculture University, Hisar. Results revealed that the rate of decrease in seed yield of coriander and fenugreek spices crops were more under 5 x 4 m spacing. On an average the seed yield decreased up to 65.44% and 65.21% under 5 m x 4 m spacing as compared to the sole coriander and fenugreek (1.36 and 1.84 t /ha). Yield of the crops increased with increasing spacing of poplar and minimum yield reduction was recorded in fenugreek under poplar based agroforestry system with 18 x 2 x 2 m spacing. Based on experimental data it can be concluded that fenugreek (variety HM-33) should be planted in wider spacing i.e. 18 x 2 x 2 m for better yield in poplar based agroforestry system. Between the spices crops highest net returns and cost benefit ratio were also observed in fenugreek under poplar based agroforestry system with 18 x 2 x 2 m spacing. The net returns for other spices were also higher in poplar based agroforestry system as compared to sole cropping, due to additional returns from poplar.
Keywords: Poplar, spices, Spacing, Coriander, fenugreek.