Improving growth and productivity of chickpea (Cicer arietinum) of south eastern Punjab with optimal plant population and fertility level

The study aimed to investigate the impact of plant populations and fertility levels on growth and yield attributes of chickpea cultivars. For this, a field experiment was conducted with two cultivars (PBG 7 and GPF 2), two levels of plant populations (3.33 and 2.22 lakh plants/ha) and two fertility levels (20:40:20 and 30:60:30 kg NPK/ha) at south-eastern Punjab (Patiala) during the winter season of 2018-2019 following factorial randomized block design. Chickpea cultivar PBG 7 recorded significantly highest growth parameters (plant height, dry weight, branches/plant) and yield attributes (pods/plant, grains/pod, 1000-seed weight and grain yield/plant) and yield as compared to the cultivar GPF 2. The lower plant population (2.22 lakh plants/ha) resulted significant increase in plant height (3.13%), dry weight (22.56%), branches/ plant (25.44%), pods/plant (7.60%), grains/pod (15.62%) over the plant population of 3.33 lakh plants/ha, but considerably higher grain yield (1471 kg/ha) was recorded with 3.33 lakh plants/ha. Higher fertility level (30:60:30 kg NPK/ha) significantly increased growth, yield attributing parameters, grain yield (1476 kg/ha) and net return (INR. 45,036/ha) as compared to low fertility level (20:40:20 kg NPK/ha). Therefore, for obtaining higher yield of chickpea, PBG 7 can be sown at 3.33 lakh plants/ha with 30:60:30 kg NPK/ha under south-eastern Punjab.