Effect of Spacing and NPK Levels on Yield, Cost Economics, Nutrient Uptake and Soil Nutrient Status in Gaillardia (Gaillardia pulchella Foug.)

• Published in: Environment and ecology Vol. 39; no. 2; p. 346
• Main Authors: Divyashree, M S, Munikrishnappa, P M, Seetharamu, G K, Kumar, S Anil, Ramegowda, G K, Basavaraj, G
• Format: Journal Article
• Language: English
• Published: Kalyani MKK Publications 01.04.2021
• Subjects: Flowers; Flowers & plants; Gaillardia pulchella; Horticulture; Nutrient availability; Nutrient status; Nutrient uptake; Nutrients; Soil nutrients; Soils; Weight; Yield
• ISSN: 0970-0420

Investigations were carried out to study the effect of different spacing and NPK levels on yield, benefit cost ratio, total plant nutrient uptake and available soil nutrients in gaillardia (Gaillardia pulchella Foug.) at College of Horticulture, Bengaluru during 2015-16. Hundred flowers weight (395 g), flower yield per plant (408.52 g) were found to be statistically higher in 60 × 60 cm spacing. However, height flower yield per hectare (11.35 t) was found in 45 × 30 cm spacing. Among varied levels of NPK, F4 (125% RDF 225:120:90 NPK kg/ha) recorded highest 100 flowers weight (334.66 g), flower yield per plant (362.93 g) and flower yield per hectare (15.20 t). Highest cost benefit ratio (2.46) was observed in S1 F4 (45 × 30 cm, 225:120:90 kg NPK/ha) treatment combination. Maximum (99.25, 17.32 and 103.67 kg/ha) total plant uptake of N, P and K respectively was registered in plants spaced at 60 × 60 cm spacing (S3 ) and maximum total plant N, P and K uptake was observed (115.06, 19.57 and 119.64 kg/ha, respectively) in treatment F4 (225:120:90 kg/ha). Among different spacing levels maximum available soil N, P and K (292.45, 28.17 and 135.19 kg/ha, respectively) was registered in plants spaced at 60 × 60 cm spacing (S3 ). Among varied levels of NPK F4 (225:120:90 kg/ha) recorded higher available soil N, P and K (286.56, 23.29 and 126.98 kg/ha, respectively).