A Manual for Citrus Growers1947 - 141 páginas |
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Página 87
... green veins against a lighter colored background . All shades grading , from light green to a cream color may be seen , depending upon the degree of deficit . As the de- ficiency becomes more acute , the green coloration of the veins ...
... green veins against a lighter colored background . All shades grading , from light green to a cream color may be seen , depending upon the degree of deficit . As the de- ficiency becomes more acute , the green coloration of the veins ...
Página 91
... green veins with a band of green along the midrib and main veins . The interveinal areas are lighter colored , giving the leaf a characteristic mottled appearance . One important distinction from manganese de- ficiency is that the ...
... green veins with a band of green along the midrib and main veins . The interveinal areas are lighter colored , giving the leaf a characteristic mottled appearance . One important distinction from manganese de- ficiency is that the ...
Página 113
... green or half - ripe oranges and grapefruit at 27 ° . On cold nights following cool days ( highest temperature 59 ° or lower ) with a very slow temperature fall near danger point : Fire ripe oranges or grapefruit at 27 ° ( sheltered ...
... green or half - ripe oranges and grapefruit at 27 ° . On cold nights following cool days ( highest temperature 59 ° or lower ) with a very slow temperature fall near danger point : Fire ripe oranges or grapefruit at 27 ° ( sheltered ...
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