 CONCLUSION. A careful reading of the foregoing pages will show that no claim has been made that ground feldspar is an efficient substitute, under all circumstances, for potash salts. The effort has been to present all the evidence which could be collected,...  The Mineral Industry - Page 4531908Full view - About this book
 | Chemistry - 1907 - 452 pages
...evidence which could be collected, both for and against the use of ground felspar as a fertiliser. The question is still open, and systematic and long-continued...that under certain conditions and with certain crops felspar can be made useful if it is ground sufficiently fine. On the other hand, it is highly probable... | |
 | United States. Bureau of Plant Industry - Plants - 1907 - 812 pages
...feldspathic rocks completely available. CONCLUSION. A careful reading of the foregoing pages will show that no claim has been made that ground feldspar is an...substitute, under all circumstances, for potash salts. The effort has been to present all the evidence which could be collected, both for and against the use... | |
 | Agriculture - 1907 - 1006 pages
...feldspathic rocks completely available. CONCLUSION. A careful reading of the foregoing pages will show that no claim has been made that ground feldspar is an...substitute, under all circumstances, for potash salts. The effort has been to present all the evidence which could be collected, both for and against the use... | |
 | Harvey Washington Wiley - Agricultural chemistry - 1908 - 720 pages
...completely available." 445. Conclusion. — "A careful reading of the foregoing pages will show that no claim has been made that ground feldspar is an...substitute, under all circumstances, for potash salts. 18 Bui. 28, US Dept. of Agriculture, Office of Public Roads. The effort has been to present all the... | |
 | Georgia. Department of Mines, Mining, and Geology - Geology - 1915 - 244 pages
...depend upon many modifying conditions. The question is still open and systematic and long continued experimentation is the only possible method of obtaining conclusive information on the subject. APPENDIX III. CHERT DEPOSITS IN GEORGIA Chert is a variety of amorphous, or at least crypto-crystalline... | |
 | Sidney Longman Galpin - Feldspar - 1915 - 236 pages
...depend upon many modifying conditions. The question is still open and systematic and long continued experimentation is the only possible method of obtaining conclusive information on the subject. APPENDIX III. CHERT DEPOSITS IN GEORGIA Chert is a variety of amorphous, or at least crypto-crystalline... | |
 | Agriculture - 1916 - 680 pages
...quotation from the bulletin itself will show: "A careful reading of the foregoing pages will show that no claim has been made that ground feldspar is an...of obtaining conclusive information on the subject. * * * At the present stage of the im estigation it would be extremely unwise for anyone to attempt... | |
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