Efficacy of Different Organic Manures on Growth and Productivity of Radish (Raphanus sativus L.)

An experiment was conducted at Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from October 2006 to December 2006 to study the effect of different levels of cow dung manure on growth and yield of radish. Four levels of cow dung manure viz. M₁= control (no organic manure), M₂ = cow dung manure (40 t ha⁻¹), M₃ = vermicompost (20 t ha⁻¹) and M₄ = poultry manure (25 t ha⁻¹) were used in the experiment. The experiment was conducted in Randomized Complete Block Design (RCBD) with six replications. The maximum values of plants height (59.97 cm), number of leaves per plant (21.67), leaf size (37.26 cm long & 9.69 cm width), leaves weight per plant (151.81 g), leaves yield (13.36 t ha⁻¹), root size (22.76cm long and 5.72cm in diameter), individual root weight (349.75 g), root yield (31.07 t ha⁻¹), dry matter (11.03 g in leaves and 14.10g in root) were found in poultry manure application at 75 DAS. On the other hand, the minimum plant height (39.12cm), number of leaves per plant (13.01), leaf size (29.11 cm long & 7.19 cm width), leaves weight per plant (62.78 g), leaves yield (5.33 t ha⁻¹), root size (10.02 cm long and 3.30cm in diameter), individual root weight (74.11 g), root yield (6.46 t ha⁻¹), dry matter (4.38 g in leaves and 3.52 g in root) were recorded from control treatment at 45 DAS.