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Accueil du site → Master → Inde → 2014 → STUDIES ON N, P AND BIOFERTILIZER MANAGEMENT PRACTICES ON GROWTH, YIELD AND NUTRIENT UPTAKE OF PEARL MILLET [Pennisetum glaucum (L.) R. Br.]

Acharya N G Ranga Agricultural University, Guntur (2014)

STUDIES ON N, P AND BIOFERTILIZER MANAGEMENT PRACTICES ON GROWTH, YIELD AND NUTRIENT UPTAKE OF PEARL MILLET [Pennisetum glaucum (L.) R. Br.]

NEERAJ YADAV

Titre : STUDIES ON N, P AND BIOFERTILIZER MANAGEMENT PRACTICES ON GROWTH, YIELD AND NUTRIENT UPTAKE OF PEARL MILLET [Pennisetum glaucum (L.) R. Br.]

Auteur : NEERAJ YADAV

Université de soutenance : Acharya N G Ranga Agricultural University, Guntur

Grade : Master of Science in Agriculture 2014

Résumé partiel
A field experiment entitled “Studies on N, P and Biofertilizer management practices on growth, yield and nutrient uptake of pearl millet [Pennisetum glaucum (L.) R. Br.]” was conducted during kharif, 2013 on sandy soil of the Agricultural College Farm, Bapatla The treatmental details were T1 : Control, T2 : Biofertilizer alone (Azospirillum and PSB), T3 : 20 kg N + 15 kg P2O5 ha-1, T4 : 40 kg N + 30 kg P2O5 ha-1, T5 : 60 kg N + 45 kg P2O5 ha-1, T6 : T2 + T3, T7 : T2 + T4 and T8 : T2 + T5. The experiment was conducted in a randomized block design (RBD) and replicated thrice. Increasing levels of inorganic N and P fertilizers in combination with biofertilizers had a significant influence in increasing plant height and drymatter production. Application of 60 kg N + 45 kg P2O5 ha-1 + biofertilizers (Azospirillum and PSB) recorded the highest plant height (78.9 cm) and drymatter production (12.0 q ha-1) at 30 DAS. Similar trends were also observed for plant height and drymatter production in pearl millet at remaining stages. Numbers of hills m-2 did not differ significantly among the treatments. Number of tillers per hill decreased from 30 DAS to 60 DAS and remained constant thereafter except for T1. At 30 DAS significantly highest number of tillers per hill was recorded in T5 treatment (3.97) which was at par with T4 (3.93). At 60 DAS and at harvest T8 treatment recorded significantly the highest number of tillers per hill (2.3). Days to 50% flowering of pearl millet was significantly reduced with increasing fertility levels along with biofertilizers. Control (T1) recorded maximum number of days to 50% flowering (52.7) whereas the lowest number of days to 50% flowering was recorded with T8 treatment (47.7) followed by T7 treatment (48.3). There was a difference of 5 days between the highest and the lowest number of days to 50% flowering within the treatments. All the yield attributes viz., number of earheads m-2, length of earhead (cm), number of grain rows earhead-1, number of filled grains row-1 and test weight (g/1000 grain) were significantly influenced by different treatments

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