A Manual for Citrus Growers1947 - 141 páginas |
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Página 10
... spring and again in the fall is sufficient . ( Where thrips are serious several applications are necessary ) . If red or black scales get started , spray with oil during the fall or early spring . A hand duster and sprayer are two ...
... spring and again in the fall is sufficient . ( Where thrips are serious several applications are necessary ) . If red or black scales get started , spray with oil during the fall or early spring . A hand duster and sprayer are two ...
Página 17
... spring until the soil has had a chance to dry out . This is particularly true with heavy and poorly drained soils . In the fall it is also advisable to permit heavy and poorly drained soils to go into the winter on the dry side so that ...
... spring until the soil has had a chance to dry out . This is particularly true with heavy and poorly drained soils . In the fall it is also advisable to permit heavy and poorly drained soils to go into the winter on the dry side so that ...
Página 31
... spring application of fertilizer is not desirable , but rather that one spring application of fertilizer will not assure a heavy crop that same year . The surest method is to main- tain a satisfactory soil fertility at all times so the ...
... spring application of fertilizer is not desirable , but rather that one spring application of fertilizer will not assure a heavy crop that same year . The surest method is to main- tain a satisfactory soil fertility at all times so the ...
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