 | 1896 - 818 páginas
...same ; the chemical composition of useful plants at their different stages of growth ; the comparative advantages of rotative cropping as pursued under a varying series of crops ; the capacity of new trees or plants for acclimation ; the analysis of soils and waters ; the chemical composition of manures,... | |
 | Connecticut. State Board of Agriculture - 1888 - 648 páginas
...same ; the chemical composition of useful plants at their different stages of growth ; the comparative advantages of rotative cropping as pursued under a varying series of crops ; the capacity of new planls or trees for acclimation ; the analysis of soils and water ; the chemical composition of manures,... | |
 | United States. Bureau of Education - 1895 - 982 páginas
...same ; the chemical composition of useful plants at their different stages of growth; tho comparative advantages of rotative cropping as pursued under a...natural or artificial, with experiments designed to lest their comparative effects on crops of different kinds; tho adaptation and value of grasses and... | |
 | United States. Bureau of Education - 1889 - 1252 páginas
...same; the chemical composition of useful plants at their different stages of growth; the comparative advantages of rotative cropping as pursued under a...or trees for acclimation; the analysis of soils and wuter; the chemical composition of manures, natural or artificial, with experiments designed to test... | |
 | United States. Bureau of Education - 1889 - 1242 páginas
...same; the chemical composition of useful plants at their different stages of growth; the comparative advantages of rotative cropping as pursued under a...plants or trees for acclimation; the analysis of soils nnd water; the chemical composition of manures, natural or artificial, with experimenta designed to... | |
 | Pennsylvania. State Board of Agriculture - 1888 - 730 páginas
...same ; the chemical composition of useful plants at their different stages of growth ; the comparative advantages of rotative cropping as pursued under a...the capacity of new plants or trees for acclimation within the isothermal limits represented by the climate of the several stations and their vicinity... | |
 | John Michels (Journalist) - 1889 - 540 páginas
...experiments on ... the chemical composition of useful plants at their different stages of growth ; . . . the analysis of soils and water ; the chemical composition...manures, natural or artificial ; with experiments designated to test their comparative effects on crops of different kinds ; . . . the value of grasses... | |
 | Michigan. State Board of Agriculture - 1884 - 482 páginas
...same; the chemical compos! t ion of useful plants at their different stages of growth; the comparative advantages of rotative cropping as pursued under a...the capacity of new plants or trees for acclimation within the isothermal limits represented by the climate of the several stations and their vicinity;... | |
 | 1891 - 866 páginas
...same ; the chemical composition of useful plants at their different stages of growth ; the comparative advantages of rotative cropping as pursued under a varying series of crops ; the capacity of new trees or plants for acclimation ; the analysis of soils and water ; the chemical composition of manures,... | |
 | Michigan. State Board of Agriculture - 1884 - 504 páginas
...represented by the climate of the several stations and their vicinity; the analysis of soils and waters; the chemical composition of manures, natural or artificial,...with experiments designed to test their comparative values for raising crops of different kinds; the composition and digestibility of the different kinds... | |
| |
... to conduct original researches or verify experiments on the physiology of plants and animals ; the diseases to which they are severally subject, with the remedies for the same ; the chemical composition of useful plants at their different stages of... 
