Bulletin of State Institutions, Volume 28,Edição 2Board of Control of State Institutions, 1926 |
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Página 109
... manure , green manures and the return to the soil of all crop residues . Farm manure has large beneficial effects when applied to soils . It increases their content of organic matter , improves their physical con- dition , adds plant ...
... manure , green manures and the return to the soil of all crop residues . Farm manure has large beneficial effects when applied to soils . It increases their content of organic matter , improves their physical con- dition , adds plant ...
Página 111
... manure . If only the seed of red clover is removed and the remainder of the crop is turned under in the soil , large benefits often occur . If the second crop is left on the land and plowed under , partial green manuring effects are ...
... manure . If only the seed of red clover is removed and the remainder of the crop is turned under in the soil , large benefits often occur . If the second crop is left on the land and plowed under , partial green manuring effects are ...
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acid phosphate acre adenoma Agent Anamosa applied average board of control Board of Parole body boy paroled breeding brook trout Bryson butter in seven cattle cent Chairman Butler child welfare clover Colby committed conference corn courts dairy herds deaf-mutism develop discussion ductless glands Eldora exophthalmic fact farm farmer Feebleminded Fort Madison give goitre in children green manures Holstein Hospital hyperthyroidism increase interested iodine iodine store Iowa soils judge land legumes lime limestone Member McColl Member Strief presiding mental milk production milked three mind Mitchellville Mount Pleasant nervous organic matter paper parent patient physical plowed Pontiac population possible pounds of butter pounds of milk Professor Stevenson profit proper record Rockwell City School for Boys Senator McColl sentence Sioux City soil management thoroughbred thyroid gland thyroxin tion tissue toxic goitre Training School treatment wayward boy Wisconsin worker