A Manual for Citrus Growers1947 - 141 páginas |
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Página 28
... method will result in a consid- erable fluctuation in the amount of fertilizer carried by the water . A more accurate method is to dissolve a definite amount of fer- tilizer in a tank of known capacity . The solution can then be ...
... method will result in a consid- erable fluctuation in the amount of fertilizer carried by the water . A more accurate method is to dissolve a definite amount of fer- tilizer in a tank of known capacity . The solution can then be ...
Página 37
... methods have been developed to give these available percentages rather than the total amounts present . The results ... method . A trained observer can determine more of the tree condition by its appearance than may be obtained in many ...
... methods have been developed to give these available percentages rather than the total amounts present . The results ... method . A trained observer can determine more of the tree condition by its appearance than may be obtained in many ...
Página 52
... methods of controlling insect pests of citrus trees is the introduction of other insects that prey upon them ... method of control . Two parasites , Coccophagus gurneyi and Tetracnemus pretiosa , were introduced later and now are ...
... methods of controlling insect pests of citrus trees is the introduction of other insects that prey upon them ... method of control . Two parasites , Coccophagus gurneyi and Tetracnemus pretiosa , were introduced later and now are ...
Índice
Chapter Page 1 SOILS CLIMATE WATER | 2 |
CITRUS TREES | 4 |
IRRIGATION PRACTICES | 11 |
Direitos de autor | |
18 outras secções não apresentadas
Palavras e frases frequentes
100 gallons acid alkaline ammonia amount applied areas black scale boxes per acre brown rot carbon cause chemical chlorosis Citrus Diseases Citrus Experiment Station citrus fruits citrus growers Citrus Leaves citrus trees copper COST PER ACRE County cover-crops crop cultivation Cultural Cost damage dust effective fertilizer field boxes foliage fumigation fungus furrows grapefruit grove growth heavy inches injury insects irrigation irrigation water juice leaf lemons lime manganese deficiency manures material mealybug method mixture moisture Mutual Orange Distributors navel navel oranges nitrate nitrogen oil spray orchard organic matter packed boxes parasites percent pest control phosphate phosphorus plow-sole potash pounds production profitable pruning red scale red spider rind root zone rootstock Rough lemon scaly bark Septoria soil sucker sulphate sulphur symptoms temperature thrips treatment trifoliate orange trunk usually Valencia orange virus weeds windbreak wood young trees zinc deficiency zinc oxide zinc sulfate