出版日期

结果 1-10 的 10

Growing and utilizing sorghums for forage 全文

1930

Vinall, H. N. (Harry Nelson) | Getty, R. E. (Robert Ellsworth)

National Agricultural Library - United States of America

Growing trees for forest planting in Montana and Idaho 全文

1930

Olson, D. S. (David Segrid)

National Agricultural Library - United States of America



Profits from farm woods 全文

1930

Mattoon, Wilbur R. (Wilbur Reed)

National Agricultural Library - United States of America


Relation of oragnic food reserves to the growth of some Kansas pasture plants 全文

1930

Aldous, A.E.

National Agricultural Library - United States of America

Lime-magnesia ratios in dolomitic limestones as influencing solution and soil reactions 全文

1930

MacIntire, W.H. | Shaw, W.M.

National Agricultural Library - United States of America

Effect of soil type and fertilizer treatment on the composition of the soybean plant 全文

1930

Austin, R.H.

National Agricultural Library - United States of America

Controlling perennial weeds with chlorates 全文

1930

Hulbert, H.W. | Remsberg, J.D. | Spence, H.L.

National Agricultural Library - United States of America