Phenolic acid content of soils from wheat-no till, wheat-conventional till, and fallow-conventional till soybean cropping systems
Soil core (0-2.5 and/or 0.10 cm) samples were taken from wheat-no till, wheat-conventional till, and fallow-conventional till soybean cropping systems from July to October of 1989 and extracted with water in an autoclave. The soil extracts were analyzed for seven common phenolic acids (p-coumaric, v...
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Veröffentlicht in: | Journal of chemical ecology 1991-06, Vol.17 (6), p.1045-1068 |
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