Exchangeable and Non-Exchangeable Potassium as Indexes to Yield Increases and Potassium Absorption by Corn in the Greenhouse
| dc.contributor.author | Schmitz, G.W. | |
| dc.contributor.author | Pratt, P.F. | |
| dc.date.accessioned | 2014-06-24T06:57:43Z | |
| dc.date.available | 2014-06-24T06:57:43Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | Samples of the Ap layer of 18 Ohio 'soils were subjected to greenhouse cropping with corn for 10 months. Yield response to K fertilization and total uptake of K were measured and correlated with soil analyses. Amounts of K extracted by HMOs provided a better index than did exchangeable K in predicting yield response to K fertilization. The best index to K removal from the soils that received no K we multiple regression in which K remc was calculated as a function of exchangeable K at the beginning of cropping and of K release from nonexchangeable forms to HNOs extraction. The best index to the K uptake on the check pots as a percentage of that on the K-freated pots was a multiple regression in which the uptake percentage was .calculated as a function of exchangeable K and K release to HNO3. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/3242 | |
| dc.language.iso | en | en_US |
| dc.title | Exchangeable and Non-Exchangeable Potassium as Indexes to Yield Increases and Potassium Absorption by Corn in the Greenhouse | en_US |
| dc.type | Article | en_US |