Corn and Soybean Grain Phosphorus Content Relationship with Soil Phosphorus, Phosphorus Fertilizer, and Crop Yield

Autor:	Peter Anthony, Stephen D. Sparrow, Mingchu Zhang, Gary L. Malzer
Rok vydání:	2013
Předmět:	Crop yield Phosphorus food and beverages Soil Science chemistry.chemical_element Predictor variables engineering.material Crop Agronomy chemistry Soil phosphorus engineering Grain yield Fertilizer Agronomy and Crop Science Phosphorus fertilizer Mathematics
Zdroj:	Communications in Soil Science and Plant Analysis. 44:1056-1071
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103624.2012.750337
Popis:	Most fertilizer phosphorus (P) rate recommendations for the north-central United States are based on combination of a critical soil-test P value and a mass-balance calculation of fertilizer P required to maintain critical soil-test P. Accurate estimates of grain P removal are an essential component of P mass-balance calculation. Current north-central extension service guidelines recommend that estimates of corn and soybean grain P removal should be calculated using constant grain P concentrations. We reviewed research from the north-central region to determine the extent to which variation in grain P concentration accounts for differences in crop P removal and to determine whether predictions of grain P concentration can be improved through consideration of soil-test P, crop yield, and fertilizer P application. We found that soil-test P, grain yield, and fertilizer P are predictor variables that may significantly improve estimates of grain P concentration for corn and soybeans.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::541226082fa6e8b1dfec374217925246 https://doi.org/10.1080/00103624.2012.750337 Zobrazit plný text záznamu