Potash Shales of Illinois
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6 Peat soil as in No. 1, with Union county shale, sample No. 2 not ignited Excellent growth, equal in every re- spect to Nos. 4 and 5 This amount of potash represents the weight per acre that would be present in a normal soil which was deemed to have an adequate supply of that constituent. The results as presented in the table are also very clearly shown in the photographic reproduction.
Pot No. 1 is the check, with deficient potash. No. 2 has the standard equivalent of 1. 34 grams of K 2 added... in the form present in the Dixon shale, and No. 3 has the same addition in the form of acid-insoluble residue from the Union county shale. An exam- 234 BULLETIN No. 232 [March, ination of these three pots seems to warrant the conclusion that potash in any available form is lacking in each case. This, therefore, would seem to confirm the previous assumption that the potash present in Pots 2 and 3 is in the f eldspathic form.
FIG. 2. BUCKWHEAT PLANTS GROWING ON PEAT SOIL TO WHICH VARIOUS SHALE MATERIALS HAVE BEEN ADDED 1 Check 2 Dixon Shale Union Co.
What to read after Potash Shales of Illinois?
You can find similar books in the "Read Also" column, or choose other free books by S W Samuel Wilson Parr to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
6 Peat soil as in No. 1, with Union county shale, sample No. 2 not ignited Excellent growth, equal in every re- spect to Nos. 4 and 5 This amount of potash represents the weight per acre that would be present in a normal soil which was deemed to have an adequate supply of that constituent. The results as presented in the table are also very clearly shown in the photographic reproduction.
Pot No. 1 is the check, with deficient potash. No. 2 has the standard equivalent of 1. 34 grams of K 2 added... in the form present in the Dixon shale, and No. 3 has the same addition in the form of acid-insoluble residue from the Union county shale. An exam- 234 BULLETIN No. 232 [March, ination of these three pots seems to warrant the conclusion that potash in any available form is lacking in each case. This, therefore, would seem to confirm the previous assumption that the potash present in Pots 2 and 3 is in the f eldspathic form.
FIG. 2. BUCKWHEAT PLANTS GROWING ON PEAT SOIL TO WHICH VARIOUS SHALE MATERIALS HAVE BEEN ADDED 1 Check 2 Dixon Shale Union Co.
What to read after Potash Shales of Illinois?
You can find similar books in the "Read Also" column, or choose other free books by S W Samuel Wilson Parr to read onlineMoreLess
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