A Manual for Citrus Growers1947 - 141 páginas |
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Página 23
... organic material ( usually called humus ) . Broadly and briefly stated , organic material needs to be added to open up heavy soils so they will take water and permit easy root growth and expansion . It is needed in light , sandy soils ...
... organic material ( usually called humus ) . Broadly and briefly stated , organic material needs to be added to open up heavy soils so they will take water and permit easy root growth and expansion . It is needed in light , sandy soils ...
Página 100
... organic material they add to the soil ; their nitrogen content ; and their prevention of soil erosion . Growing winter cover - crops has a double purpose - prevention of soil washing and addition of organic matter to the soil . It is ...
... organic material they add to the soil ; their nitrogen content ; and their prevention of soil erosion . Growing winter cover - crops has a double purpose - prevention of soil washing and addition of organic matter to the soil . It is ...
Página 137
... Organic material 23 Manures 23 Organic materials , analysis of ...... 36 Manures , computing value of and potash need 24 McGeorge , W. T. , on phosphate Р 32 Peas Canada field , cow ) 101 Mealybug , citrophilus 52 Pectin 119 Mealybug ...
... Organic material 23 Manures 23 Organic materials , analysis of ...... 36 Manures , computing value of and potash need 24 McGeorge , W. T. , on phosphate Р 32 Peas Canada field , cow ) 101 Mealybug , citrophilus 52 Pectin 119 Mealybug ...
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