كتب ذات صلة

The influence of calcium, magnesium and potassium nitrates upon the toxicity of certain heavy metals toward fungus spores ...

Fungi and fungicides.

Dutch elm disease in Illinois

• The study of the evergreens in the public schools.
  المؤلفون: Weed, Clarence Moores
• Spraying crops why, when, and how
  المؤلفون: Weed, Clarence Moores
• The school garden book
  المؤلفون: Weed, Clarence Moores ,  Emerson, Philip

• The western fruit book; or, American fruit-grower''s guide for the orchard and fruit-garden. Being a compend of the history, modes of propagation, culture, & c., of fruit trees and shrubs, with descriptions of nearly all the varieties of fruits cultivated in this country: notes of their adaptation to localities and soils, and also a complete list of fruits worthy of cultivation.
  المؤلفون: Elliott, F. R.
• Tobacco culture. Practical details, from the selection and preparation of the seed and the soil to harvesting, curing and marketing the crop ...
  المؤلفون: Popenoe, Judson. [from old catalog]
• The Tim Bunker papers or, Yankee farming.
  المؤلفون: Clift, William