Chesney, H.A.D. (1973) Response of Digitaria setivalva to nitrogen, phosphorus, potassium, magnesium and calcium on Ebini sandy loam, Guyana. II. Effect on some chemical properties and nutrient status of soil. Tropical Agriculture, 50 (3). pp. 193-202.
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Abstract
The annual rates of application were 332, 200, 208, 28 and 1120kg/ha of N, P, K, Mg and Ca respectively. pH in the 0 to 15 and 15 to 30cm horizons was lowered by the application of N ((NH4)2SO4) and increased by Ca (calcitic limestone). Truog-P was increased in both horizons by P application and decreased by N application. Exchangeable K was increased in both horizons by the application of K (KCl), but the increase was small compared to the amount of fertilizer added. K was decreased by N application especially in the 15 to 30cm horizon. No changes in total N were observed.[116:22
| Item Type: | Article |
|---|---|
| Author Affiliation: | Central Agricultural Station, Ministry of Agriculture, Guyana |
| Subjects: | Plant Protection Soil Science and Microbiology Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | General |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 08 May 2012 02:57 |
| Last Modified: | 08 May 2012 02:57 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5141 |
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