Article Dans Une Revue International Journal of Plant & Soil Science Année : 2025

Distribution of Potassium under Prominent Cropping Systems in Scarce Rainfall Zone of Andhra Pradesh, India

Résumé

Six prominent cropping systems in scarce rainfall zone of Andhra Pradesh viz., groundnut-horsegram, cotton-fallow, fallow-bengalgram, groundnut monocropping, paddy-paddy and paddy-groundnut cropping systems were selected to study the soil available potassium status and forms of potassium. Twenty soil samples from each cropping system were collected at 0-15 cm (surface soil) and 15-30 cm (sub-surface soil) depth. The available potassium content in the study area was varied from medium to high. The highest available K (216 and 148 mg kg-1), water soluble K (19.94 and 14.25 mg kg-1) and exchangeable K (196 and 133 mg kg-1) were recorded under paddy-paddy cropping system in both surface and sub-surface soils, respectively. The highest non-exchangeable K (609 and 441 mg kg-1) was recorded under paddy-groundnut cropping system in both surface and sub-surface soils, respectively. However, lattice K (34072 and 25614 mg kg-1) and total K (34666 and 26066 mg kg-1) were recorded highest under groundnut monocropping system in both surface and sub-surface soils, respectively.

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Dates et versions

hal-05016525 , version 1 (02-04-2025)

Identifiants

Citer

M. Rama Tulasi, Ch. Bhargava Rami Reddy, K. Madhuri, Y. Pavan Kumar Reddy, M. Naidu. Distribution of Potassium under Prominent Cropping Systems in Scarce Rainfall Zone of Andhra Pradesh, India. International Journal of Plant & Soil Science, 2025, 37 (3), pp.162-176. ⟨10.9734/ijpss/2025/v37i35356⟩. ⟨hal-05016525⟩
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