Chemical News and Journal of Physical Science, Tom 115Chemical news office., 1917 |
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Strona 32
... soil , location , and methods of cultivation has been completed , and the results are being prepared for publica- tion . The study of the composition of oranges from selected trees has been of great assistance to the Bureau of Plant ...
... soil , location , and methods of cultivation has been completed , and the results are being prepared for publica- tion . The study of the composition of oranges from selected trees has been of great assistance to the Bureau of Plant ...
Strona 59
... soil are discussed in outline with illustrative experiments . Most boys and girls would find the course of work described interesting , and the spread of the kind of knowledge it imparts is of vital importance at the present moment ...
... soil are discussed in outline with illustrative experiments . Most boys and girls would find the course of work described interesting , and the spread of the kind of knowledge it imparts is of vital importance at the present moment ...
Strona 60
... Soils , and Water - Alan Haythornthwaite , B.Sc. , A.R.C.S. ( Lond . ) , and Ernest Paul , B.Sc. ( Lond . ) . different theatres of operation had been largely increased , the total quantity of wine requisitioned by the Government of the ...
... Soils , and Water - Alan Haythornthwaite , B.Sc. , A.R.C.S. ( Lond . ) , and Ernest Paul , B.Sc. ( Lond . ) . different theatres of operation had been largely increased , the total quantity of wine requisitioned by the Government of the ...
Strona 69
... soil . In a country which still includes such large areas of untilled land , the problem is natu- rally less acute than in the countries of the old world . But the problem is still present , for it takes time to open up new land for ...
... soil . In a country which still includes such large areas of untilled land , the problem is natu- rally less acute than in the countries of the old world . But the problem is still present , for it takes time to open up new land for ...
Strona 70
... soil , are acted upon by bacteria in the soil and converted into soluble nitrates , which then exercise manurial properties and are taken up by vegetation . The vegetable foodstuff is again eaten , assimilated , and the nitrogen ...
... soil , are acted upon by bacteria in the soil and converted into soluble nitrates , which then exercise manurial properties and are taken up by vegetation . The vegetable foodstuff is again eaten , assimilated , and the nitrogen ...
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