Inorganic Plant Poisons And...
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Fertilizer Sulfur and Food...
Mohinder Mudahar
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Crop Chemicals
H.A. Hughes,
Louis R. Hathaway (Volume editor)
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All about Fertilizers, Soils ...
A. Cort Sinnes,
Ortho Books
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Soil, Humus and Health: An...
W.E.Shewell- Cooper
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Improved use of plant...
Management and Conservation Service: Land and Water Development Division Food and Agriculture Organization: Soil Resources
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Organic Gardening and Farming
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Compost, fertilizer, and...
Michael McGarry,
Jill Stainforth
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Root Activity Patterns of...
D. A. Nethsinghe,
Hans Broeshart
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Fertilizing for Maximum Yield
George William Cooke
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Seaweed in Agriculture &...
Bargyla (Editor),
Gylver Rateaver (Editor)
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Organic Fertilizers: Which...
Organic Gardening & Farming Magazine Edi
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Fertilizer Recommendations:...
Agriculture,Fish.& Food,Min.of
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Sugar-Beet Nutrition
A P Draycott
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Soil Fertility and...
John L Havlin,
Samuel L Tisdale
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