Vol. 11, Issue 7 (2022)

Author(s):
Rohit Kumar Singh, GS Bhatnagar, Shivam Kumar Verma, Ajay Kumar Gaur and Vinay Kumar Singh

Abstract:
Quinoa (Chenopodium quinoa Willd.), is a pseudo-cereal crop and as a field crop it has a great potential in the improvement of food for humans and animals even under the conditions of marginal lands. For getting high crop yields, nutrients in balanced amount are a basic requirement. The experiment was laid out in Split Plot Design with four replications and there were 3 spacing parameters i.e. 30 cm, 45 cm and 60 cm and 3 nitrogen scheduling i.e. 40 kg, 80 kg and 120 kg. Data on growth parameters viz. plant height, leaf area index, dry matter content, crop growth rate and net assimilation rate were studied at three growth stages from 30 days after sowing (DAS), 60 DAS and at harvest. At harvest, S3 - 60 cm (150.52 g) had the highest dry matter content and Maximum dry matter content was obtained with N3-120kg (150.69g). At 30 DAS, the best crop growth rates were obtained under S3-60 cm (2.71) and maximum crop growth rate was computed using N3-120 kg (2.89). S3-60cm (5.33) had the greatest net assimilation rate at harvest. Under nitrogen scheduling, the greatest net assimilation rate was determined using N3 - 120 kg (5.32). At harvest maximum leaf area index under spacing was recorded with S3 - 60 cm (3.78) and under nitrogen scheduling maximum leaf area index recorded with N3 - 120 kg (3.53). S3 - 60 cm (114.72 cm) observed maximum plant height at harvest and under nitrogen scheduling maximum plant height depicted with N3 - 120 kg (113.38 cm).