Model Analysis of Response of Pensacola Bahiagrass to Applied Nitrogen, Phosphorus, and Potassium. I. Seasonal Dry Matter

Autor:	Allen R. Overman, K. H. Brock, F. M. Rhoads
Rok vydání:	2005
Předmět:	biology Physiology Chemistry Potassium Phosphorus chemistry.chemical_element Factorial experiment Cynodon dactylon biology.organism_classification Nitrogen Nutrient Agronomy Dry matter Agronomy and Crop Science Paspalum notatum
Zdroj:	Journal of Plant Nutrition. 27:1747-1756
ISSN:	1532-4087 0190-4167
DOI:	10.1081/pln-200026411
Popis:	The extended multiple logistic model has been used to describe seasonal dry matter and plant nutrient uptake in response to combinations of applied nitrogen (N), phosphorus (P), and potassium (K) for bermudagrass (Cynodon dactylon L) and tall fescue (F. arundinacea Schreb.). In this article, the model is used to analyze data for bahiagrass (Paspalum notatum Flugge) in an N × P × K = 3 × 3 × 3 factorial experiment at Quincy, FL. A procedure is illustrated for standardizing the model over two of the nutrients in order to focus on response to the third. Estimates are made of applied N, P, and K required to reach 50% of maximum potential yield. Similar calculations are included to achieve 50% of potential maximum plant P and K uptake. The strong sensitivity of plant P and K to applied levels of P and K is described as well.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a0dfa5ff4f7e3d23e85a9a5dffdffb0 https://doi.org/10.1081/pln-200026411 Zobrazit plný text záznamu