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Potassium Management during the Rotation from Alfalfa to Corn
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| Journal Title: | Agronomy Journal |
|---|---|
| Authors and Corporations: | , , , , |
| In: | Agronomy Journal, 103, 2011, 6, p. 1785-1793 |
| Type of Resource: | E-Article |
| Language: | English |
| published: |
Wiley
|
| Subjects: |
| author_facet |
Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. |
|---|---|
| author |
Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. |
| spellingShingle |
Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. Agronomy Journal Potassium Management during the Rotation from Alfalfa to Corn Agronomy and Crop Science |
| author_sort |
yost, matt a. |
| spelling |
Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. 0002-1962 1435-0645 Wiley Agronomy and Crop Science http://dx.doi.org/10.2134/agronj2011.0183 <jats:p>High K fertilizer prices in recent years have made it imperative for growers to apply optimum K rates to alfalfa (<jats:italic>Medicago sativa</jats:italic> L.). Current university fertilizer guidelines in the Corn Belt do not change for the last production year, when alfalfa stand persistence is not a major concern. Furthermore, little is known about carryover of K applied to alfalfa on first‐year corn (<jats:italic>Zea mays</jats:italic> L.) grain and silage yields. In 2008 to 2010, on‐farm research was conducted on 10 fields with medium soil test potassium (STK) to determine response to K for alfalfa yield and quality in the last production year, and to estimate K carryover to first‐year corn. Alfalfa yield and relative feed value (RFV) and quality (RFQ) did not improve with K fertilization. Herbage K concentration and K uptake increased with K fertilization across sites, indicating that applied K was available during the season of application. When corn relied on carryover K alone, each 100 kg ha<jats:sup>−1</jats:sup> increase in the index of available K increased corn grain yield by 0.5 Mg ha<jats:sup>−1</jats:sup>, decreased stover yield by 0.4 Mg ha<jats:sup>−1</jats:sup>, and did not affect silage yields. Regardless of K rate applied to alfalfa, additional K applied to corn increased corn stover and silage yields by 10 and 8%, respectively. This suggests that carryover K was less available than K applied to corn. On medium STK soils going into the last year of alfalfa, applying fertilizer K to first‐year corn rather than alfalfa may enhance economic return.</jats:p> Potassium Management during the Rotation from Alfalfa to Corn Agronomy Journal |
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10.2134/agronj2011.0183 |
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2011 |
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Agronomy Journal |
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49 |
| title |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_unstemmed |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_full |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_fullStr |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_full_unstemmed |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_short |
Potassium Management during the Rotation from Alfalfa to Corn |
| title_sort |
potassium management during the rotation from alfalfa to corn |
| topic |
Agronomy and Crop Science |
| url |
http://dx.doi.org/10.2134/agronj2011.0183 |
| publishDate |
2011 |
| physical |
1785-1793 |
| description |
<jats:p>High K fertilizer prices in recent years have made it imperative for growers to apply optimum K rates to alfalfa (<jats:italic>Medicago sativa</jats:italic> L.). Current university fertilizer guidelines in the Corn Belt do not change for the last production year, when alfalfa stand persistence is not a major concern. Furthermore, little is known about carryover of K applied to alfalfa on first‐year corn (<jats:italic>Zea mays</jats:italic> L.) grain and silage yields. In 2008 to 2010, on‐farm research was conducted on 10 fields with medium soil test potassium (STK) to determine response to K for alfalfa yield and quality in the last production year, and to estimate K carryover to first‐year corn. Alfalfa yield and relative feed value (RFV) and quality (RFQ) did not improve with K fertilization. Herbage K concentration and K uptake increased with K fertilization across sites, indicating that applied K was available during the season of application. When corn relied on carryover K alone, each 100 kg ha<jats:sup>−1</jats:sup> increase in the index of available K increased corn grain yield by 0.5 Mg ha<jats:sup>−1</jats:sup>, decreased stover yield by 0.4 Mg ha<jats:sup>−1</jats:sup>, and did not affect silage yields. Regardless of K rate applied to alfalfa, additional K applied to corn increased corn stover and silage yields by 10 and 8%, respectively. This suggests that carryover K was less available than K applied to corn. On medium STK soils going into the last year of alfalfa, applying fertilizer K to first‐year corn rather than alfalfa may enhance economic return.</jats:p> |
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| _version_ | 1792333165571866632 |
| author | Yost, Matt A., Russelle, Michael P., Coulter, Jeffrey A., Sheaffer, Craig C., Kaiser, Daniel E. |
| author_facet | Yost, Matt A., Russelle, Michael P., Coulter, Jeffrey A., Sheaffer, Craig C., Kaiser, Daniel E., Yost, Matt A., Russelle, Michael P., Coulter, Jeffrey A., Sheaffer, Craig C., Kaiser, Daniel E. |
| author_sort | yost, matt a. |
| container_issue | 6 |
| container_start_page | 1785 |
| container_title | Agronomy Journal |
| container_volume | 103 |
| description | <jats:p>High K fertilizer prices in recent years have made it imperative for growers to apply optimum K rates to alfalfa (<jats:italic>Medicago sativa</jats:italic> L.). Current university fertilizer guidelines in the Corn Belt do not change for the last production year, when alfalfa stand persistence is not a major concern. Furthermore, little is known about carryover of K applied to alfalfa on first‐year corn (<jats:italic>Zea mays</jats:italic> L.) grain and silage yields. In 2008 to 2010, on‐farm research was conducted on 10 fields with medium soil test potassium (STK) to determine response to K for alfalfa yield and quality in the last production year, and to estimate K carryover to first‐year corn. Alfalfa yield and relative feed value (RFV) and quality (RFQ) did not improve with K fertilization. Herbage K concentration and K uptake increased with K fertilization across sites, indicating that applied K was available during the season of application. When corn relied on carryover K alone, each 100 kg ha<jats:sup>−1</jats:sup> increase in the index of available K increased corn grain yield by 0.5 Mg ha<jats:sup>−1</jats:sup>, decreased stover yield by 0.4 Mg ha<jats:sup>−1</jats:sup>, and did not affect silage yields. Regardless of K rate applied to alfalfa, additional K applied to corn increased corn stover and silage yields by 10 and 8%, respectively. This suggests that carryover K was less available than K applied to corn. On medium STK soils going into the last year of alfalfa, applying fertilizer K to first‐year corn rather than alfalfa may enhance economic return.</jats:p> |
| doi_str_mv | 10.2134/agronj2011.0183 |
| facet_avail | Online |
| finc_class_facet | Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft |
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| format_de105 | Article, E-Article |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMjEzNC9hZ3JvbmoyMDExLjAxODM |
| imprint | Wiley, 2011 |
| imprint_str_mv | Wiley, 2011 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
| issn | 1435-0645, 0002-1962 |
| issn_str_mv | 1435-0645, 0002-1962 |
| language | English |
| last_indexed | 2024-03-01T14:08:24.471Z |
| match_str | yost2011potassiummanagementduringtherotationfromalfalfatocorn |
| mega_collection | Wiley (CrossRef) |
| physical | 1785-1793 |
| publishDate | 2011 |
| publishDateSort | 2011 |
| publisher | Wiley |
| record_format | ai |
| recordtype | ai |
| series | Agronomy Journal |
| source_id | 49 |
| spelling | Yost, Matt A. Russelle, Michael P. Coulter, Jeffrey A. Sheaffer, Craig C. Kaiser, Daniel E. 0002-1962 1435-0645 Wiley Agronomy and Crop Science http://dx.doi.org/10.2134/agronj2011.0183 <jats:p>High K fertilizer prices in recent years have made it imperative for growers to apply optimum K rates to alfalfa (<jats:italic>Medicago sativa</jats:italic> L.). Current university fertilizer guidelines in the Corn Belt do not change for the last production year, when alfalfa stand persistence is not a major concern. Furthermore, little is known about carryover of K applied to alfalfa on first‐year corn (<jats:italic>Zea mays</jats:italic> L.) grain and silage yields. In 2008 to 2010, on‐farm research was conducted on 10 fields with medium soil test potassium (STK) to determine response to K for alfalfa yield and quality in the last production year, and to estimate K carryover to first‐year corn. Alfalfa yield and relative feed value (RFV) and quality (RFQ) did not improve with K fertilization. Herbage K concentration and K uptake increased with K fertilization across sites, indicating that applied K was available during the season of application. When corn relied on carryover K alone, each 100 kg ha<jats:sup>−1</jats:sup> increase in the index of available K increased corn grain yield by 0.5 Mg ha<jats:sup>−1</jats:sup>, decreased stover yield by 0.4 Mg ha<jats:sup>−1</jats:sup>, and did not affect silage yields. Regardless of K rate applied to alfalfa, additional K applied to corn increased corn stover and silage yields by 10 and 8%, respectively. This suggests that carryover K was less available than K applied to corn. On medium STK soils going into the last year of alfalfa, applying fertilizer K to first‐year corn rather than alfalfa may enhance economic return.</jats:p> Potassium Management during the Rotation from Alfalfa to Corn Agronomy Journal |
| spellingShingle | Yost, Matt A., Russelle, Michael P., Coulter, Jeffrey A., Sheaffer, Craig C., Kaiser, Daniel E., Agronomy Journal, Potassium Management during the Rotation from Alfalfa to Corn, Agronomy and Crop Science |
| title | Potassium Management during the Rotation from Alfalfa to Corn |
| title_full | Potassium Management during the Rotation from Alfalfa to Corn |
| title_fullStr | Potassium Management during the Rotation from Alfalfa to Corn |
| title_full_unstemmed | Potassium Management during the Rotation from Alfalfa to Corn |
| title_short | Potassium Management during the Rotation from Alfalfa to Corn |
| title_sort | potassium management during the rotation from alfalfa to corn |
| title_unstemmed | Potassium Management during the Rotation from Alfalfa to Corn |
| topic | Agronomy and Crop Science |
| url | http://dx.doi.org/10.2134/agronj2011.0183 |