Annual Report - Glasshouse Crops Research InstituteThe Institute., 1957 - Greenhouse management |
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Page 70
... manganese status of soils Manganese occurs in the soil in different forms with widely varying solubilities . Therefore it is necessary to distinguish between total and available manganese . Total manganese is of secondary importance for ...
... manganese status of soils Manganese occurs in the soil in different forms with widely varying solubilities . Therefore it is necessary to distinguish between total and available manganese . Total manganese is of secondary importance for ...
Page 74
... manganese was observed in 16 out of the 18 soils . This increase did not , however , exceed 2 p.p.m. in soils with pH values greater than 6. Appreciable increases in exchange- able manganese were produced on steaming in the majority of ...
... manganese was observed in 16 out of the 18 soils . This increase did not , however , exceed 2 p.p.m. in soils with pH values greater than 6. Appreciable increases in exchange- able manganese were produced on steaming in the majority of ...
Page 75
... manganese in soils can be brought about by biological agencies15 . The rapidity with which the exchangeable manganese content of an acid soil can fall after liming has been shown by Heintze16 . A similar effect was observed in the ...
... manganese in soils can be brought about by biological agencies15 . The rapidity with which the exchangeable manganese content of an acid soil can fall after liming has been shown by Heintze16 . A similar effect was observed in the ...
Contents
Dr W F BEWLEY C B E D Sc V M H An Appreciation | 9 |
OBITUARY | 16 |
PLANT PATHOLOGY | 27 |
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acaricides acre Agric analysis applied axillary shoots Biol block blotchy fruit blotchy ripening buffer solutions calcium sulphate carnation Cheshunt compost concentration correlation crop yields cucumber cucumber mildew date of sampling diazinon disease dry matter effect experimental experiments expressed sap fertilizer formaldehyde fruit walls fungus glasshouse Glasshouse Crops grade green growers growth Horticultural Immuna increased infection inoculated Institute investigation July layer leaf levels lycopersici magnesium manganese manure Mean mushroom mycelium nitrogen normal nutritional obtained pC values percentage phosphate plots potash Red Spider Mite roots sap solids Sciarids season showed shown soil soil pH soluble salts spores stages of ripeness steaming sterilized studies sugars superphosphate Table temperature tensiometers tests tissue titratable acidity tomato fruit tomato plants total solids treatments trials truss U/F ratio urea urea-formaldehyde urea-formaldehyde compounds variety Potentate water-soluble water:soil ratio weeks weight WINSOR