Soil Science, Količina 2Williams & Wilkins Company, 1916 A monthly journal devoted to problems in soil physics, soil chemistry and soil biology. |
Iz vsebine knjige
Zadetki 1–5 od 100
Stran iii
... Plants in Sand Cultures . Arthur G. McCall .... Some Bacteriological Studies on Agar Agar . Carl Raymond Fellers . The Organic Phosphorus of Soil . R. S. Potter and T. H. Benton .................. .. Does Vanadium Interfere with the ...
... Plants in Sand Cultures . Arthur G. McCall .... Some Bacteriological Studies on Agar Agar . Carl Raymond Fellers . The Organic Phosphorus of Soil . R. S. Potter and T. H. Benton .................. .. Does Vanadium Interfere with the ...
Stran vi
... thyrium Fuckelii ( ? ) Spores ( x 600 ) . Fig . 13. - Cladosporium epiphyllum . Portion of fruiting hyphae and fructifications ... PAGE 156 156 156 156 PHYSIOLOGICAL BALANCE OF NUTRIENT SOLUTIONS FOR PLANTS IN SAND CULTURES vi SOIL SCIENCE.
... thyrium Fuckelii ( ? ) Spores ( x 600 ) . Fig . 13. - Cladosporium epiphyllum . Portion of fruiting hyphae and fructifications ... PAGE 156 156 156 156 PHYSIOLOGICAL BALANCE OF NUTRIENT SOLUTIONS FOR PLANTS IN SAND CULTURES vi SOIL SCIENCE.
Stran vii
PHYSIOLOGICAL BALANCE OF NUTRIENT SOLUTIONS FOR PLANTS IN SAND CULTURES PLATE I. Wheat cultures about 20 days old , showing form of pot and ar- rangement for renewing the solutions ... PAGE 253 SOME BACTERIOLOGICAL STUDIES ON Agar Agar ...
PHYSIOLOGICAL BALANCE OF NUTRIENT SOLUTIONS FOR PLANTS IN SAND CULTURES PLATE I. Wheat cultures about 20 days old , showing form of pot and ar- rangement for renewing the solutions ... PAGE 253 SOME BACTERIOLOGICAL STUDIES ON Agar Agar ...
Stran viii
... PLANTS IN SAND CULTURES Fig . 1. Dry weights of wheat grown for 20 days in sand cultures , with a three - salt solution varying from 0.1 atmosphere to 5.0 atmos- pheres total osmotic concentration 217 Triangular diagrams showing areas ...
... PLANTS IN SAND CULTURES Fig . 1. Dry weights of wheat grown for 20 days in sand cultures , with a three - salt solution varying from 0.1 atmosphere to 5.0 atmos- pheres total osmotic concentration 217 Triangular diagrams showing areas ...
Stran 2
... plants are dependent in a large measure upon soil microorganisms for their food . Studies then , of the conditions which affect the activity of these organisms are highly desirable . HISTORICAL RESUMÉ The history of the general subject ...
... plants are dependent in a large measure upon soil microorganisms for their food . Studies then , of the conditions which affect the activity of these organisms are highly desirable . HISTORICAL RESUMÉ The history of the general subject ...
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Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
absorption active protozoa activity of soil added agar agar agar ammonia Ammonia Accumulation Lab ammonifying power ammonium amount Aspergillus niger Average bacteria bacterial numbers calcium calcium nitrate carbon cent Centbl chemical chloride Colony color conidia Conidiophores containing cottonseed meal depression determined diameter dried blood dry weight effect experiment fertilizers flasks floccose fungi fungus gram growth humus hyphae inches increase incubation influence Inoculation Isolated Lipman loam magnesium manganese manganese sulfate medium method moisture content Mucor mycelium NaOH nitrate nitrification nitrogen optimum organic matter oxidation Peat Penicillium phosphate phosphoric acid pigment plants plot potassium pounds per acre present produced protozoa ratio reaction Rhizopus Rhizopus tritica salts samples sand cultures Shive sodium soil fungi soluble solution cultures species spores sterile subtilis sulfate sulfur sulphate Table temperature tion toxic Trichoderma Trichoderma Koningi tubes Zygorhynchus Vuilleminii
Priljubljeni odlomki
Stran 4 - State, which is being conducted by the Bureau of Soils of the United States Department of Agriculture...
Stran 290 - WF 1910. The analysis of silicate and carbonate rocks. US Geol. Survey Bui. 422.
Stran 523 - The solvent action of soil bacteria upon the insoluble phosphates of raw bone meal and natural raw rock phosphate.
Stran 441 - The comparatively insoluble salts — calcium carbonate, calcium sulphate, etc. — were carefully weighed and intimately mixed with the soil. The arranging of the work in this order gives us as nearly absolute results as can be obtained by the present bacteriological methods, and at the same time gives us' directly comparable results, which after all is what we have to look for in this work. The salts tested were the chlorides, nitrates, sulphates, and carbonates of sodium, potassium, calcium, magnesium,...
Stran 241 - Harris, FS: Effect of alkali salts in soils on the germination and growth of crops.
Stran 574 - CAMERON, FK, and BELL, JM 1905. The mineral constituents of the soil solution.
Stran 495 - Oxidation of Sulfur in Soils as a Means of Increasing the Availability of Mineral Phosphates.
Stran 433 - Some of these soils contain such large quantities of these so-called "alkalis" that no vegetation is found upon them. Other soils contain only a medium amount of soluble salts, and the vegetation is composed chiefly of alkali-resisting plants. Still other soils contain much smaller quantities of soluble salts, and they become injurious only when the soil is improperly handled. The reclaiming of the heavily charged soils and the maintaining of the others in a productive condition can be carried on...
Stran 101 - Use the fertilizers nature is storing beneath your 6-inch farms. Send a postal request today for Vertical Farming Booklet 376-F. Be sure to state the acreage of the farm you own. EI du Pont de Nemours & Co. POWDER MAKERS SINCE 1802 Wilmington, Delaware Agricultural Apparatus 9190.
Stran 495 - By the deficiency or absence of one necessary constituent, all the others being present, the soil is rendered barren for all those crops to the life of which that one constituent is indispensable.