| dc.contributor.author | Rakkar, Manbir Kaur | |
| dc.description.abstract | A study was conducted at thirteen locations in North Dakota and Minnesota in 2013 and 2014 with the objectives of determining difference between the soil potassium (K) results based upon air-dried (KDry) and field-moist (KMoist) soil samples during the corn growing season and to evaluate corn response to applied K-fertilizer. Overall, KDry tests showed higher K levels in the soil test results compared to KMoist but the pattern of deviation was dependent upon various soil properties such as initial soil K level. Temporal variation of soil K levels indicated a need to consider time of soil sampling while making fertilizer recommendations. Potassium application significantly increased corn yields at only five out of 11 sites with soil K levels below critical K soil test levels (<150 ppm). Therefore, development of an improved soil testing strategy is required to improve the predictability of corn response to applied K fertilizer in this region. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU policy 190.6.2 | |
| dc.title | Evaluation of Soil Potassium Test to Improve Fertilizer Recommendations for Corn | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2018-03-16T13:27:53Z | |
| dc.date.available | 2018-03-16T13:27:53Z | |
| dc.date.issued | 2015 | |
| dc.identifier.uri | https://hdl.handle.net/10365/27767 | |
| dc.description.sponsorship | North Dakota Corn Council | en_US |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Agriculture, Food Systems and Natural Resources | en_US |
| ndsu.department | Soil Science | en_US |
| ndsu.department | School of Natural Resource Sciences | en_US |
| ndsu.program | Soil Science | en_US |
| ndsu.advisor | Chatterjee, Amitava | |
| ndsu.advisor | Franzen, Dave | |
