Potassium release potential of rubber growing soils in North-East India (Record no. 65370)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02107nam a2200181Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Mandal D |
| 245 #0 - TITLE STATEMENT | |
| Title | Potassium release potential of rubber growing soils in North-East India |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | Rubber Science |
| Year of publication | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 51-57 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Studies on potassium (K) release potential of rubber growing soils in three states of North-East (NE) India namely Assam, Meghalaya and Tripura was carried out. Results revealed that rubber growing soils of Meghalaya could supply K to plant at a higher rate than the other two States of NE India as indicated by its higher K releasing parameters viz constant rate K (1.38 mg 100 g-1), step K (101.8 mg 100g -1) and cumulative K release potential (113.4 mg 100 g-1). Rubber growing soils of Tripura with high content of low active kaolinite clay recorded lower values of various K releasing parameters vis-a-vis low plant available K. Significant positive relationship of silt+ clay with K release parameters suggested that finer fractions of soil played an important role in K release. Step K and constant rate K showed positive and significant relationship with exchangeable and non-exchangeable K, whereas, cumulative K showed significant relationship with non-exchangeable pool of K only. Data indicated that K releasing power of soils is the sum of exchangeable and non-exchangeable form of soil K and long term availability of soil K to plants depends mainly upon its on-exchangeable pool. Total K ranged from 0.67 to 1.51 per cent and did not record significant relationship with K releasing parameters indicating that the major share of mineral K is not available for plant uptake. Results also suggested that K supplying power under rubber growing soils of Meghalaya may exhaust quickly due to its higher K releasing parameters which necessitates constant monitoring of K fertility status of these soils. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Potassium availability |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Potassium-release potential |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Rubber growing soils |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Soil properties |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Baruah T C |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | Agronomy | 01/01/2021 | Volume 29, Issue 1 | Journals |