Humic matter content vs. organic matter content for making herbicide recommendations

Autor:	A. J. Parsells, H. J. Strek, J. J. Dulka
Rok vydání:	1990
Předmět:	chemistry.chemical_classification Preemergent herbicide medicine.drug_class Soil organic matter Soil Science Soil classification Sulfonylurea Humus Agronomy chemistry Environmental chemistry medicine Bioassay Organic matter Extraction methods Agronomy and Crop Science
Zdroj:	Communications in Soil Science and Plant Analysis. 21:1985-1995
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103629009368352
Popis:	Because soil organic matter (OM) influences preemergent herbicide performance, many herbicide rates are based on soil OM content. Recent studies have found large inter‐laboratory differences in OM values whether determined by either similar or different methods. Making herbicide rate recommendations can therefore be difficult. A NaOH extraction method for determining humic matter (HM) is used by only a few laboratories but is gaining acceptance. Previous studies have shown that soil HM content also correlates with herbicidal activity. This study with several sulfonylurea herbicides found that both adsorption and herbicidal activity correlated more strongly with soil HM content than soil OM content.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::12b249b5212eab3ba7ea9705937ca4c7 https://doi.org/10.1080/00103629009368352 Zobrazit plný text záznamu