The Potato ...Judd, 1905 - 185 páginas |
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Página 36
... nitrogen of farm manures is taken up by the crop ; thus , with an annual manuring of 15.5 tons per acre , containing 200 pounds of nitrogen , continued for twelve Courtesy R. I. Exp . Sta . See Bul . 40 . FIG . IO - INFLUENCE OF LIME ...
... nitrogen of farm manures is taken up by the crop ; thus , with an annual manuring of 15.5 tons per acre , containing 200 pounds of nitrogen , continued for twelve Courtesy R. I. Exp . Sta . See Bul . 40 . FIG . IO - INFLUENCE OF LIME ...
Página 38
... nitrogen , 8 per cent . available phosphoric acid , and 10 per cent . potash has proven satisfactory . It is used in amounts varying from 500 pounds to 2,000 pounds per acre , and in many cases more potash is ap- plied than is ...
... nitrogen , 8 per cent . available phosphoric acid , and 10 per cent . potash has proven satisfactory . It is used in amounts varying from 500 pounds to 2,000 pounds per acre , and in many cases more potash is ap- plied than is ...
Página 39
... nitrogen , phos- phoric acid , or potash - in a more or less available form , and that the benefits received from their appli- cation is due to the addition of this plant - food to the soil . So deeply seated is this theory that all ...
... nitrogen , phos- phoric acid , or potash - in a more or less available form , and that the benefits received from their appli- cation is due to the addition of this plant - food to the soil . So deeply seated is this theory that all ...
Página 41
... nitrogen present in the air . ' ' Research has revealed the fact that soil or- ganisms can take plant - food from both of the above sources and furnish it to growing crops , and that a fertile soil is one in which these processes are ...
... nitrogen present in the air . ' ' Research has revealed the fact that soil or- ganisms can take plant - food from both of the above sources and furnish it to growing crops , and that a fertile soil is one in which these processes are ...
Página 42
... nitrogen - e.g . , dried blood , tankage , hoof meal , etc. Nitrogen as nitrates is immediately available as plant - food , is soluble in water , and if not taken up quickly by plants is liable to be lost in the soil water ; hence small ...
... nitrogen - e.g . , dried blood , tankage , hoof meal , etc. Nitrogen as nitrates is immediately available as plant - food , is soluble in water , and if not taken up quickly by plants is liable to be lost in the soil water ; hence small ...
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