The Potato ...Judd, 1905 - 185 páginas |
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Página 100
... covered as soon as possible to prevent loss of mois- ture . Frequently the rows plowed out before the noon meal hour and left open for this time show the injuri- ous effect of the loss of moisture , especially if the seed is cut ...
... covered as soon as possible to prevent loss of mois- ture . Frequently the rows plowed out before the noon meal hour and left open for this time show the injuri- ous effect of the loss of moisture , especially if the seed is cut ...
Página 113
... covered with a white downy mildew . In dry weather this may be difficult to detect . Later the leaves appear as though burnt , and finally the whole plant , and in some cases the whole field , will become a putrid , offensive mass of ...
... covered with a white downy mildew . In dry weather this may be difficult to detect . Later the leaves appear as though burnt , and finally the whole plant , and in some cases the whole field , will become a putrid , offensive mass of ...
Página 115
... covered with a thin film of some copper compound , we either prevent the entrance or injure the vitality of the ger- minating spore tubes , so that the potatoes enjoy a certain degree of immunity from the disease . This is the ...
... covered with a thin film of some copper compound , we either prevent the entrance or injure the vitality of the ger- minating spore tubes , so that the potatoes enjoy a certain degree of immunity from the disease . This is the ...
Página 116
... covered with an armor of Bordeaux mixture . Plants half sprayed are not secure , as the disease can spread rapidly inside the plant . The plant must be com- pletely coated all the time to be immune . This may be impos- sible when a ...
... covered with an armor of Bordeaux mixture . Plants half sprayed are not secure , as the disease can spread rapidly inside the plant . The plant must be com- pletely coated all the time to be immune . This may be impos- sible when a ...
Página 117
... after the vines die . 8. Getting potatoes out of the field as soon as dug , and never covering piles of potatoes with spore - laden haulm . EARLY BLIGHT , ' OR LEAF SPOT DISEASE ( Macro- OBSTRUCTIONS TO DEVELOPMENT 117.
... after the vines die . 8. Getting potatoes out of the field as soon as dug , and never covering piles of potatoes with spore - laden haulm . EARLY BLIGHT , ' OR LEAF SPOT DISEASE ( Macro- OBSTRUCTIONS TO DEVELOPMENT 117.
Otras ediciones - Ver todas
The Potato: A Practical Treatise on the Potato, Its Characteristics ... Samuel Fraser Vista completa - 1913 |
The Potato: A Practical Treatise on the Potato, Its Characteristics ... Samuel Fraser Vista completa - 1913 |
The Potato: A Practical Treatise on the Potato, Its Characteristics ... Samuel Fraser Vista completa - 1911 |
Términos y frases comunes
amount applied Arsenate of Lead Arsenite average barrel beetles better blight Bordeaux mixture bushels per acre Carman cellar cents per bushel copper sulphate Cornell Bul cost covered crop cultivation deaux mixture depth digger disease dry matter Early Ohio early potatoes early varieties Experiment Station eyes farmer fertilizers foliage gallons of water Geneva Bul germinate grower growing grown growth harrow haulm hence inches deep influence insects kainit land late varieties leaf leaves lime loam loss manure Mark Catesby mature moisture muriate of potash nitrate of soda nitrogen nozzles ounces Paris green phosphate phosphoric acid Phytophthora infestans pile plant-food planter plats plow pollen pota potassium ferrocyanide potatoes planted produce profitable roots rows scab seed potatoes seed tubers Sir Walter Raleigh soil soluble solution spores spraying sprouts starch stem stomata storage surface temperature tillage tion tubers vary vigorous weight