Catechism of Agricultural Chemistry and Geology |
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... MANURES , price 3d . No. II . - RESULTS OF EXPERIMENTS IN PRACTICAL AGRICULTURE , MADE IN 1841 , price 3d . No. III . - RESULTS OF EXPERIMENTS IN PRACTICAL AGRICULTURE , MADE IN 1842 , with REMARKS AND ADDITIONAL SUGGESTIONS , price 10d ...
... MANURES , price 3d . No. II . - RESULTS OF EXPERIMENTS IN PRACTICAL AGRICULTURE , MADE IN 1841 , price 3d . No. III . - RESULTS OF EXPERIMENTS IN PRACTICAL AGRICULTURE , MADE IN 1842 , with REMARKS AND ADDITIONAL SUGGESTIONS , price 10d ...
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... MANURES , price 3d . WITH UNMIXED No. II . RESULTS OF EXPERIMENTS IN PRACTICAL AGRICUL- TURE , MADE IN 1841 , price 3d . No. III . RESULTS OF EXPERIMENTS IN PRACTICAL AGRICUL- TURE , MADE IN 1842 , WITH REMARKS AND ADDITIONAL ...
... MANURES , price 3d . WITH UNMIXED No. II . RESULTS OF EXPERIMENTS IN PRACTICAL AGRICUL- TURE , MADE IN 1841 , price 3d . No. III . RESULTS OF EXPERIMENTS IN PRACTICAL AGRICUL- TURE , MADE IN 1842 , WITH REMARKS AND ADDITIONAL ...
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... MANURES , price 7s . 6d . PART IV . - In course of publication — ON FEEDING of Stock , & c . " Unquestionably the most important contribution that has recently been made to popular science , and destined to exert an extensively ...
... MANURES , price 7s . 6d . PART IV . - In course of publication — ON FEEDING of Stock , & c . " Unquestionably the most important contribution that has recently been made to popular science , and destined to exert an extensively ...
Page 1
... manures which he applies to the land . I. OF THE NATURE OF THE CROPS HE RAISES . Q. Of what parts do all vegetable substances con- sist ? A. All vegetable substances consist of two parts , one which burns away in the fire , called the ...
... manures which he applies to the land . I. OF THE NATURE OF THE CROPS HE RAISES . Q. Of what parts do all vegetable substances con- sist ? A. All vegetable substances consist of two parts , one which burns away in the fire , called the ...
Page 18
... manure or of peat compost are given to it . Q. What purpose does this organic matter serve in the soil ? A. It supplies the organic food which plants draw from the soil through their roots . Q. Do plants draw much of their organic food ...
... manure or of peat compost are given to it . Q. What purpose does this organic matter serve in the soil ? A. It supplies the organic food which plants draw from the soil through their roots . Q. Do plants draw much of their organic food ...
Common terms and phrases
AGRICULTURAL CHEMISTRY ammonia animal require applied bone-earth bones burns called carbon and water carbonic acid gas CHEMISTRY AND GEOLOGY Chlorine clover common salt compost consist of carbon contain cow-dung crops cwts draining dung earth EDINBURGH employed fall to powder farm-yard manure farmer fattening fermentation fertile give gluten grass lands grow guano gypsum hydrogen inorganic kind of air large quantity leaves LECTURES ON AGRICULTURAL light lands lighted taper limestone liquid magnesia marl mixed nitrogen oats obtain oil of vitriol organic food organic matter oxide of iron oxygen gas phosphate of lime phosphoric acid plants require potash potatoes produced profit proportion pupils quicklime roots sea-weed shell sand Silica slaked smell soda soil consists sour starch straw subsoil substances sulphuric acid supply taste teacher may exhibit teacher may illustrate teacher will show turnip usually vegetable waste wheat white fumes wood woody fibre
Popular passages
Page 17 - Q. Whence is the organic part of the soil derived? A. It is derived from the roots and stems of decayed plants, and from the dung and remains of animals and insects of various kinds. Q. Does this organic part form a large proportion of the soil ? A. Of peaty soils it forms sometimes three-fourths of the whole weight; but of rich and fertile soils it does not usually form more than from a twentieth to a tenth of the whole weight. Q. Can a soil bear good crops which does not contain a considerable...