Response of winter wheat to N-fertiliser: Dynamic model

Autor:	Duncan J. Greenwood, R. A. Sutherland, Ann Draycott, L. M. J. Verstraeten
Rok vydání:	1987
Předmět:	Winter wheat Soil Science Soil science Agronomy Dry weight Yield (chemistry) Range (statistics) General Earth and Planetary Sciences Grain yield Soil horizon Statistical theory Agronomy and Crop Science General Environmental Science Mathematics
Zdroj:	Fertilizer Research. 12:139-156
ISSN:	1573-0867 0167-1731
DOI:	10.1007/bf01048914
Popis:	A concise computer simulation model is described for calculating the growth and N-content of winter-wheat. The validity of the model was tested by means of a new application of statistical theory against the results of nationwide fertiliser experiments having different designs. There was agreement within the limits of experimental error between the measured and simulated values of both total plant and of grain dry weight over the entire range of N-fertiliser treatments in the different experiments. The model also gave good estimates of the %N in the grain provided N-fertilizer levels were not high. Response curves, calculated from the model for grain yield, grain %N, are given for different combinations of potential yield, mineralisation rate and the distribution of inorganic-N down the soil profile.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0172349b7350974ad0bfe2bd813a63b https://doi.org/10.1007/bf01048914 Zobrazit plný text záznamu Full text from SpringerLink