Yield response of barley and rapeseed to K fertilizer: Influence of soil test K level and method of placement

Autor:	M. Nyborg, Sukhdev S. Malhi, D. R. Walker, D. C. Penney, J. A. Robertson, L. Kryzanowski
Rok vydání:	1993
Předmět:	Rapeseed Soil test Field experiment Potash food and beverages Soil Science engineering.material Agronomy Soil water engineering Poaceae Hordeum vulgare Fertilizer Agronomy and Crop Science Mathematics
Zdroj:	Communications in Soil Science and Plant Analysis. 24:2271-2280
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103629309368954
Popis:	Field experiments were conducted in central Alberta to determine the yield response of barley and rapeseed to KCl on soils varying in soil test K levels and to evaluate three methods of K placement for effectiveness. The soil test K extractant was 1M ammonium acetate solution. Placement methods were incorporation, banding with the seed and banding beside the seed row. The percentage of sites that responded to K fertilizer significantly and yield increase of barley from K fertilizer decreased with increasing soil test K in the soil. Rapeseed responded less often to K than barley and K placement was more critical for barley than for rapeseed. Barley yields were greatest when the K fertilizer was banded in the seed row and least when incorporated into the soil. Rapeseed yields on K‐responsive sites were same when the K fertilizer was incorporated or banded beside the seed row, but tended to be greater when banded with the seed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d69d17b181416944950148cf3d025774 https://doi.org/10.1080/00103629309368954 Zobrazit plný text záznamu