id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71517	Pessi, Yrjö	Fertilization of Sphagnum bogs, on the basis of certain field experiments at Leteensuo	1960	14	.pdf	application/pdf	4997	247	72	Increase .. ,yield yield yield yield Grain yield Straw yield Oats 0 650 1 680 1 000 2 900 350 1 220 PK 700 50 2 440 1 060 60 3 720 360 1 280 NPK 950 300 3 050 1 270 270 4 310 320 1 260 2NPK 1 120 470 3 670 1 460 460 4 940 340 1 270 3NPK 1 330 680 4 150 1 540 540 5 300 210 1 150 Significant differences: Artificial fertilization 41* 55** 75*** Stable manure 65* 88** 119*** Peas and oats 0 860 - 1 660 1 270 2 490 410 830 PK 1 680 820 3 250 1 780 60 3 740 100 490 NPK 1 880 1 020 3 930 2 060 790 3 990 180 60 2NPK 1 920 1 060 4 050 2 030 760 4 230 110 180 3NPK 2 150 1 290 4 500 2 110 840 4 540 -40 40 Significant differences: Artificial fertilization 159* 219** 301*** and Figs. 3 and 4; they, too, have been given separately for the period before and after 1949. Average hay crop yields, kg per hectare and year (17 years).	cache/afs-71517.pdf	txt/afs-71517.txt