Field Dissolution of Sulfur-coated Ureas in Turfgrass

Autor:	N. W. Hummel, D. V. Waddington
Rok vydání:	1986
Předmět:	Horticulture
Zdroj:	HortScience. 21:1155-1156
ISSN:	2327-9834 0018-5345
Popis:	A field study was conducted to characterize dissolution of sulfur-coated ureas (SCU) of different particle sizes. Five fine and 4 coarse SCU sources from the Tennessee Valley Authority (TVA) were selected to represent a range of 7-day dissolution rates. They were applied at a N rate of 122 kg·ha−1 to 324 cm2 plots. Undissolved, residual pellet weights were determined every 2 weeks for 12 weeks after application. In comparisons of fine and coarse SCU with similar laboratory dissolution rates, the fine materials dissolved significantly faster than the coarse materials. The 7-day laboratory dissolution rate correlated strongly to pellet recovery in the field when fine and coarse materials were compared separately. The correlation was not as strong when all SCU sources were compared jointly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c78ca9e82c7c47db4dbdd9dd099beb1c https://doi.org/10.21273/hortsci.21.5.1155 Zobrazit plný text záznamu