id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71635	Kaila, Armi	Apparent recovery of fertilizer nitrogen	1965	12	.pdf	application/pdf	5689	258	59	It is likely that residual effect of nitrogen fertilizers plays its role in the irregular recovery of fertilizer nitrogen by the cereals and in the decrease of the level of the recovery in the third year. The relatively scanty information in the textbooks about the recovery of fertilizer nitrogen by crops is surprisingly conflicting.	cache/afs-71635.pdf	txt/afs-71635.txt