Studies on phosphorus and zinc efficacy with phosphate and zinc solubilising microbes in lentil (Lens culinaris L.) in tarai region of Uttarakhand
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Date
2021-12
Authors
Yaying, Monica
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Publisher
G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A field experiment was conducted at N. E. Bourlag Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) during rabi 2020 on Phosphorus and Zinc efficacy with phosphate and zinc solubilizing microbes in lentil (Lens culinaris L.) in tarai region. The soil of the field was sandy clay loam in texture, having high organic carbon (0.78 %), medium available nitrogen (259.2 kg/ha), available phosphorus (18.6 kg/ha), available potassium (194.7 kg/ha) and low zinc (0.45 ppm) contents with neutral in reactions (pH 7.4). Twelve different doses of phosphorus and zinc with phosphate and zinc solubilizing microbes viz. Absolute control (without P and Zn), RDP @ 48 kg per ha, ZnSO4 @ 25 kg per hectare, Biophos (5 ml per kg seed), Biozinc (5 ml per kg seed ), Biophos and Biozinc (5 ml per kg seed each ), 50% RDP @ 24 kg + Biophos (5 ml per kg seed ), 12.5 kg ZnSO4 + Biozinc (5 ml per kg seed ), 50% RDP@ 24 kg + Biophos + Biozinc (5 ml per kg seed each ), 50% RDP @24 +12.5 kg ZnSO4 + Biophos + Biozinc (5 ml per kg seed each), and RDP@ 48kg + nutrient mobilizer (LNm 43a) (20 g per kg seed) were tested in randomized block design taking three replications. Results showed that the growth parameters viz. ; plant height, number of branches per plant, number of compound leaves per plant, and dry weight of plant were highest with application of 50% RDP @ 24 kg per hectare +12.5 kg ZnSO4 + Biophos @ 5 ml per kg seed + Biozinc @ 5 ml per kg seed. Other yield characters such as the number of pods per plant, number of grains per pod, grain weight per plant, grain yield and B:C ratio were also highest with the application of 50% RDP @24 kg per hectare +12.5 kg ZnSO4 + Biophos @ 5 ml per kg seed + Biozinc @ 5 ml per kg seed. Yield obtained from 50% RDP @ 24 kg per hectare + Soil of 12.5 kg ZnSO4 per ha + nutrient mobilizer @ 20g per kg seed was the second highest. N, K, and Zn uptakes were highest with application of 50% RDP @24 kg per hectare +12.5 kg ZnSO4 + Biophos @ 5 ml per kg seed + Biozinc @ 5 ml per kg seed while the P uptake was highest in case of RDP @ 48 kg + nutrient mobilizer (LNm 43a) (20 g per kg seed). Protein uptake and yield were also highest in the case of the treatment that resulted in highest uptake of nitrogen. The lowest performer was the absolute control (without P and Zn) in most of the growth characters, yield attributes, grain and protein yields, P and Zn uptake etc.