EFFECT OF PHOSPHORUS AND SULPHUR ON DRY MATTER ACCUMULATION AND NUTRIENT UPTAKE IN CHICKPEA
VIKRAM SINGH* AND J. N. NARIYA
Department of Agricultural Chemistry & Soil Science
Junagadh Agricultural University,
Junagadh (Gujarat), India
*(e-mail : vikramshahpuria@gmail.com)
(Received : 29 April 2017; Accepted : 26 May 2017)
SUMMARY
The field experiment was conducted to study the effect of different levels of phosphorus and sulphur on growth, dry matter accumulation and nutrient uptake by chickpea at the Instructional Farm, Department of, Junagadh Agricultural University, Junagadh during rabi season of 2015-16. The results revealed that the dry matter accumulation increased significantly with the progressive increase in phosphorus levels up to 60 kg/ha at 45, 60, 75, 90 DAS and at harvest. Maximum dry matter accumulation per plant at 45 DAS (2.13 g/plant), 60 DAS (17.10 g/plant), 75 DAS (23.93 g/plant), 90 DAS (32.90 g/plant) and at harvest (34.05 g/plant) was recorded with the application of 60 kg P2O5/ha, which was significantly higher over control, 20 kg P2O5 /ha. Dry matter accumulation increased significantly with the progressive increase in sulphur levels up to 40 kg/ha at 45, 60, 75, 90 DAS and at harvest. Maximum dry matter accumulation per plant at 45 DAS (1.94 g/plant) , 60 DAS (15.59 g/plant), 75 DAS (20.92 g/plant) , 90 DAS (29.33 g/ plant) and at harvest (30.41 g/plant) was recorded with the application of 40 kg S/ha, which was significantly higher over control, 20 kg S/ha.. An increasing level of phosphorus up to 60 kg P2O5 /ha significantly resulted on phosphorus and sulphur content and uptake by stover. Further total uptake of nitrogen, potassium and sulphur by chickpea crop was significantly influenced by increasing levels of phosphorus up to 60 kg P2O5/ha and total phosphorus uptake by crop was significantly higher with application of 40 kg P2O5 /ha.
Key words: Dry matter accumulation, growth, nutrient uptake, chickpea