A Manual for Citrus Growers1947 - 141 páginas |
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Página 33
... alkaline reaction of the soil , the calcium carbonate or caliche in them , and the chemical form or combination in which this phosphate exists . By reducing the pH , or alkalinity of the soil , by heavy applications of sulphur or animal ...
... alkaline reaction of the soil , the calcium carbonate or caliche in them , and the chemical form or combination in which this phosphate exists . By reducing the pH , or alkalinity of the soil , by heavy applications of sulphur or animal ...
Página 35
... alkaline Alkaline Moderately Alkaline pH VALUES 9 8.5 8 Slightly alkaline Neutral Slightly acid Moderately acid Acid Very acid Table of Comparisons 7.5 most favorable for citrus trees . 7 6.5 6 5.5 5 In the table on Page 36 , ordinary ...
... alkaline Alkaline Moderately Alkaline pH VALUES 9 8.5 8 Slightly alkaline Neutral Slightly acid Moderately acid Acid Very acid Table of Comparisons 7.5 most favorable for citrus trees . 7 6.5 6 5.5 5 In the table on Page 36 , ordinary ...
Página 90
... alkaline culture solutions favor the development of manganese deficiency in citrus . With other plants in many parts of the world it has been found that manganese is often unavailable on alkaline soils . There seems little doubt ...
... alkaline culture solutions favor the development of manganese deficiency in citrus . With other plants in many parts of the world it has been found that manganese is often unavailable on alkaline soils . There seems little doubt ...
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