 ... 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 plants or trees for acclimation ; the analysis of soils...  Biennial Report - 第73页1889全本阅读 - 图书信息
 | 1896 - 818 页
...new trees or plants for acclimation ; the analysis of soils and waters ; the chemical composition of manures, natural or artificial, with experiments designed...crops of different kinds ; the adaptation and value of forage plants and grasses ; the composition and digestibility of the different kinds of foods for domestic... | |
 | Connecticut. State Board of Agriculture - 1888 - 648 页
...new plants or trees for acclimation ; the analysis of soils and water; the chemical composition of manures, natural or artificial. with experiments designed...economic questions involved in the production of butter and cheese ; and such other researches or experiments bearing directly on the agricultural industry... | |
 | United States. Bureau of Education - 1890 - 372 页
...new plants or trees for acclimation ; the analysis of soils and water; the chemical composition of manures, natural or artificial, with experiments designed...economic questions involved in the production of butter and cheese ; and such other researches or experiments bearing directly on the agricultural industry... | |
 | United States. Bureau of Education - 1889 - 1252 页
...of new plants or trees for acclimation; the analysis of soils and wuter; the chemical composition of manures, natural or artificial, with experiments designed...and forage plants: the composition and digestibility ot I In- different kinds of food for domestic animals; the scientific and economic questions involved... | |
 | United States. Bureau of Education - 1889 - 1242 页
...analysis of soils nnd water; the chemical composition of manures, natural or artificial, with experimenta designed to test their comparative effects on crops...and forage plants; the composition and digestibility ol the different kinds of food for domestic animals; the scientific and economic questions involved... | |
 | United States. Bureau of Education - 1895 - 982 页
...artificial, with experiments designed to lest their comparative effects on crops of different kinds; tho adaptation and value of grasses and forage plants;...different kinds of food for domestic animals; the ecieutilic and economic questions involved in tho production of butter and cheese; and such other researches... | |
 | New Hampshire. Department of Agriculture - 1888 - 476 页
...new plants or trees for acclimation ; the analysis of soils and water ; the chemical composition of manures, natural or artificial, with experiments designed...economic questions involved in the production of butter and cheese; and such other researches or experiments bearing directly on the agricultural industry... | |
 | Pennsylvania. State Board of Agriculture - 1888 - 730 页
...several stations and their vicinity ; the analysis of soils and water ; the chemical composition of manures, natural or artificial, with experiments designed...economic questions involved in the production of butter and cheese; and such other researches and experiments bearing directly on the agricultural industry... | |
 | John Michels (Journalist) - 1889 - 540 页
...with experiments designated to test their comparative effects on crops of different kinds ; . . . the value of grasses and forage plants ; the composition...kinds of food for, domestic animals ; the scientific . . . questions involved in the production of butter and cheese ; and such other researches or experiments... | |
 | Michigan. State Board of Agriculture - 1884 - 482 页
...the several stations and their vicinity; the analysis of soils and water; the chemical composition of manures, natural or artificial, with experiments designed...economic questions involved in the production of butter and cheese; and such other researches or experiments bearing directly on the agricultural industry... | |
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