id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72922	Kurppa, Sirpa; Suonpää, Marja	Infestations and distribution of Rhopalosiphum padi (L.) on different varieties of barley and oats, effect of nitrogen fertilization and chemical control	1990	12	.pdf	application/pdf	5362	317	68	In the open field in 1988, significant differ- ences were found in aphid numbers per plant between varieties Pomo, Agneta and Ida at the lowest level of nitrogen fertilization (Fig. 3). Distribution of Rhopalosiphum padi (Homoptera: Aphididae) on spring barley plants.	cache/afs-72922.pdf	txt/afs-72922.txt