EFFECT OF DIFFERENT PRODUCTION FACTORS ON PRODUCTIVITY, NPK UPTAKE AND QUALITY OF PEARL MILLET [PENNISETUM GLAUCUM (L.) R. BR.]
ARUN KUMAR, ANIL KUMAR, L.K. MIDHA AND B.S. DUHAN
Department of Genetics & Plant Breeding
CCS Haryana Agricultural University, Hisar, Haryana, India
(Email : email@example.com)
(Received : 05 March 2015; Accepted : 30 May 2015)
The experiment was conducted at Hisar during kharif season of 2011 with an objective to see the effect of different production factors on the NPK content and their uptake as well as quality of pearl millet in terms of protein content. Eight different treatments i.e. T1- Full Package & Practices [RDF (125 kg N + 62.5 kg P2O5 /ha) + ZnSO4 @ 25 kg /ha + biofertilizer biomix (Azospirillum + PSB) + thinning and gap filling + weeding and hoeing (20 and 35 DAS) + irrigation] , T2: T1-RDF (N and P), T3: T1- ZnSO4 @ 25 kg /ha, T4: T1- biomix, T5: T1- Thinning and gap filling (19 DAS), T6: T1- Weeding and hoeing (20 and 35 DAS), T7: T1- Irrigation and T8: Control were laid out in randomized block design with three replications. Non adoption of individual factors Recommended Doze of Fertilizer (T2), ZnSO4 (T3), biomix (T4), thinning and gap filling (T5), weeding and hoeing (T6) and irrigation (T7) caused a decrease in grain yield by 32.8, 12.2, 7.7, 16.7, 30.1, 20.2, 48.0 (control) per cent and stover yield by 22.7, 7.9, 4.0, 10.0, 18.9, 16.0 and 32.2 per cent (control) than T1 (FPP), respectively. Among all the treatments, T1 recorded significantly higher N, P, K and Protein contents and their uptake in grain as well as in stover. Nitrogen content in grain increased significantly from 1.66% under control (T8) to 1.84% in T1 and followed by T4 (1.82%), T3 (1.82%) and T5 (1.79%). The phosphorus content also increased from 0.24% (T8) to 0.31% (T1) in grain whereas potassium content in grain was lowest under T8 (0.53%) and highest under T1 (0.60%) treatment. The total N, P and K uptake was found highest in T1 (129.78, 26.47 and 308.77 kg ha-1, respectively). The protein content in grain also significantly increased from 10.4% (T8) to 11.5% in T1 and followed by T4 (11.4%) and T3 (11.3%) treatments. The present study clearly indicated that non adoption of individual factors i.e. recommended dose of N & P and weeding and hoeing caused a maximum decrease in grain yield by 32.8 and 30.1 per cent and stover yield by 22.7 and 18.9 per cent than full package practices, respectively. The adoption of full package & practices resulted in the higher N, P, K and content (%) and their uptake (kg/ha) in grain and stover.
Key words:N,P,K, Protein content, yield, pearl millet