id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72927	Yli-Halla, Markku	Comparison of a bioassay and three chemical methods for determination of plant-available P in cultivated soils of Finland	1990	7	.pdf	application/pdf	3512	191	66	Also in Finnish soils, water and resin extractions have proved successful in predicting the uptake of soil P by plants in pot experiments (Aura 1978, Sippola& Jaak- kola 1980). The study showed that the plants were able to utilize only a small fraction of soil P. This suggests that the bulk of soil P is proba- bly of no practical significance in P nutrition of plants.	cache/afs-72927.pdf	txt/afs-72927.txt