id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71558	Pessi, Yrjö	The volume weight of the organic matter in the plough layer of peat lands cultivated by different methods	1961	8	.pdf	application/pdf	2865	133	60	Mineral soil Volume weight Increase caused Joint addition' Unfertilized Fertilized by soil impro- effect in3 per hectare ving 0 0.367 0.411 0.389 - - 200 clay 0.396 0.425 0.410 + 0.021 - 0.015 200 sand 0.360 0.413 0.386 - 0.003 + 0.009 400 clay 0.394 0.412 0.403 + 0.014 - 0.026 400 sand 0.396 0.406 0.401 + 0.012 - 0.034 600 clay 0.369 0.372 0.370 - 0.019 - 0.041 600 sand 0.412 0.413 0.412 + 0.023 - 0.043 800 clay 0.380 0.410 0.395 + 0.006 - 0.014 800 sand 0.415 0.450 0.432 + 0.043 - 0.009 Mean 0.388 0.412 - F values: Mineral soil 9.9o*** Fertilizing 43.77*** Joint effect 3.61* t-value, Fertilizing 4.478*** Table 2. Mineral soil Volume weight Increase caused addition, TT , .... , _ .... , ~ by soil improvingUnfertilized fertilized Mean ' r m 3 per hectare 0 0.399 0.351 0.375 200 fine sand 0.362 0.340 0.351 - 0.024 200 clay 0.385 0.400 0.392 + 0.017 Rean 0.382 0.364 F values: Mineral soil 0.24° Fertilizing o.oB° Joint effect 0.15° Table 5.	cache/afs-71558.pdf	txt/afs-71558.txt