Role of Phosphate and Organic Matter in the Management of Lateritic Soils for Increasing Productivity
| Main Author: | S. K. GHOSH |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1982
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/6357638 |
Daftar Isi:
- Fertilizer Promotion & Agricultural Research Division, Hindustan Fertilizer Corporation Ltd., Calcutta-700 017 Laterites and lateritic soils occupy large areas in the states of West Bengal, Bihar and Orissa. The \(p\)H of these soils range from 5.0 to 6.5 or even less. They are poor in calcium, organic matter, available phosphate and exchangeable bases. Due to poor return many of these have gone out of cultivation and hence their proper management for increasing crop production has a vital bearing on the agricultural economy of the respective states. The utility of phosphates in crop production, when mixed with decomposing organic matter has been advocated. As such, a large number of field trials were conducted extending for over 3 to 10 years in the lateritic soils of West Bengal with phosphate and organic matter. It has been found that a mixture of all kinds of organic matter along with phosphatic fertilizers is best suited for the management of lateritic soils by enriching the soil nitrogen, decreasing their acidity, saving the leaching away of lime and supplying available pnosphate and calcium.