Response of grain amaranth (Amranthus gangeticus l.) to spacing and fertilizer levels under irrigated condition Nawlakhe S. M., Mankar D. D. Agronomy Section, College of Agriculture, Nagpur Dr. Panjabrao Desmukh Krishi Vidyapeeth, Akola, Maharashtra, India Online published on 19 March, 2018. Abstract A three-year field experiment was conducted to study the response of grain amaranth to spacing and fertilizer at Regional Agricultural Research Station Sindewahi District. Chandrapur (Maharashtra, India) during rabi seasons of 1993–94,1994–95 and 1995–96. The experiment was conducted in factorial randomized block design with four spacings (30 x 10, 45 x 10, 30 x 20 and 45 x 20 cm) and four levels of fertilizer (controi, 25: 12.5: 0 kg, 50: 25: 0 kg and 75: 37.5: 0 kg NPK/ha) in three replications on sandy clay loam soil under irrigated condition. Spacings 30 x 10 cm (plant population 3.33 lakh/ha), 30 x 20 cm (plant population 1.66 lakh/ha) and 45 x 20 cm (plant population 1.11 lakh/ha) were found to be the optimum spacings. From seed rate and possible intcrcultural point of view 45 x 20 cm spacing (plant population 1.11 lakh/ha) was the best. Fertilizer dose 75: 37.5: 0 kg NPK/ha recorded significantly higher yield over control and all other fertilizer treatments. There was 29.9, 63.1 and 104% increase in yield over control by fertilizer doses viz., 25: 12.5: 0 kg, 50: 25: 0 kg and 75: 37.5: 0 kg NPK/ha, respectively. Top Keywords Fertilizer dose, Grain amaranth, Grain yield, Spacing. Top |