Is Tissue Testing Useful in Identifying Corn and Soybean Fields Responsive to Phosphorus and Potassium Fertilizers?

dc.contributor.author Mallarino, Antonio
dc.date 2018-02-16T15:21:01.000
dc.date.accessioned 2020-06-30T01:49:51Z
dc.date.available 2020-06-30T01:49:51Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2010
dc.date.embargo 2015-06-23
dc.date.issued 2010-07-01
dc.description.abstract <p>Producers often ask questions about tissue testing to decide "emergency" in-season phosphorus (P) and potassium (K) fertilization for corn and soybean. Previous articles(<a href="http://www.extension.iastate.edu/CropNews/2010/0629mallarino.htm">June 2010</a> and <a href="http://www.extension.iastate.edu/CropNews/2008/0703Mallarino.htm">July 2008</a>) have discussed the viability of post-emergence application of P and K fertilizers. A large application of granulated P or K fertilizer to soil during the very early crop growth stages may result in some grain yield increase although an economic benefit for the current crop is not likely. The probability of an economic response to foliar fertilization is likely with insufficient preplant fertilization or when soil and climate factors (other than drought) limit nutrient uptake. Traditionally, farmers and crop consultants have used soil sampling and testing of visually affected and seemingly unaffected field areas to determine if there is a nutrient deficiency. This is an effective practice when crop growth is limited by low soil nutrient supply, but will not be effective when soil or climatic factors other than low soil nutrient levels limit early nutrient uptake.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/cropnews/401/
dc.identifier.articleid 1405
dc.identifier.contextkey 7250394
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cropnews/401
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/19151
dc.language.iso en
dc.relation.ispartofseries Integrated Crop Management News
dc.source.bitstream archive/lib.dr.iastate.edu/cropnews/401/20100701_MallarinoAP_IsTissueTesting.pdf|||Sat Jan 15 00:07:51 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords Agronomy
dc.title Is Tissue Testing Useful in Identifying Corn and Soybean Fields Responsive to Phosphorus and Potassium Fertilizers?
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 6c8d0b1a-8ab6-4a4b-bfd0-00466ede7d16
File
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
20100701_MallarinoAP_IsTissueTesting.pdf
Size:
569.04 KB
Format:
Adobe Portable Document Format
Description:
Collections