Thomas, J.D. and Mathers, A.C. (1979) Manure and Iron Effects on Sorghum Growth on Iron-Deficient Soil. Agronomy Journal, 71 (5). pp. 792-794.
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Abstract
Iron deficiency in sorghum [Sorghum bicolor (L.) Moench] occurs in spots throughout the High Plains on calcareous soils. This greenhouse experiment was conducted to determine the effect of N, P, and K with and without Fe and the effect of manure with and without additional Fe on Fe-deficiency and dry matter yield of sorghum. Residual effects on a second and third crop also were measured. Pelleted manure and NPK (300-100-100 ppm) with Fe treatments were mixed with 3 kg of Arch fine sandy loam (Ustochreptic Calciorthid of the fine-loamy, mixed thermic family). The treatments were Check, NPK, 0.5, 1.2, and 4% manure with Fe added to supply 0, 5, 10, 20, and 40 ppm Fe to the soil. Soil moisture was increased to 20qb by weight periodically to maintain adequate soil moisture. Dry matter yield and observations indicated that manure effectively reduced Fe chlorosis and increased sorghum growth on Fe-deficient calcareous soil. Either ferrous sulfate alone at rates up to 40 ppm Fe or fertilizer without Fe did not increase yields. Although yields were increased by adding Fe with fertilizer increases from Fe were not as great as those from manure. Manure had a residual effect on yield in the second and third crops. This indicates that manure can be used to correct Fe deficiency of grain sorghum on calcareous soils
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Minor elements, Calcareous soil, Iron chlorosis |
| Author Affiliation: | Soil research technician, and soil scientist, USDA South-western Great Plains Research Center, Bushland, TX 79012 |
| Subjects: | Social Sciences |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 06 Jan 2012 05:31 |
| Last Modified: | 06 Jan 2012 05:31 |
| Official URL: | http://dx.doi.org/10.2134/agronj1979.0002196200710... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/2923 |
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