A Manual for Citrus Growers1947 - 141 páginas |
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Página 25
... nitrogen while the manure is breaking down . Observations indicate that more efficient use of the spring applica- tion of chemical fertilizer may result if it is put on early enough to be carried by the rains into the root zone ...
... nitrogen while the manure is breaking down . Observations indicate that more efficient use of the spring applica- tion of chemical fertilizer may result if it is put on early enough to be carried by the rains into the root zone ...
Página 34
... nitrogen down below the root zone . " The transformation of unavailable nitrogen in the soil is a func- tion of certain soil bacteria and the activity of these bacteria is great- ly influenced by soil temperatures . Therefore , it is ...
... nitrogen down below the root zone . " The transformation of unavailable nitrogen in the soil is a func- tion of certain soil bacteria and the activity of these bacteria is great- ly influenced by soil temperatures . Therefore , it is ...
Página 38
... nitrogen , 8 percent phosphoric acid ; 4 percent potash . However , the tag may show the sources of the nitrogen content by means of other figures such as 2-2-4 . This means that the mixture consists of 2 percent nitric nitrogen derived ...
... nitrogen , 8 percent phosphoric acid ; 4 percent potash . However , the tag may show the sources of the nitrogen content by means of other figures such as 2-2-4 . This means that the mixture consists of 2 percent nitric nitrogen derived ...
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