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Roy Douglas Hockensmith

18 cilt bulundu.

Cilt sonuçları

Water and Agriculture

Roy Douglas Hockensmith · Yayınevi bilinmiyor

210 sayfa · 2012-05-01

Kategori yok

Classifying Land for Conservation Farming

Roy Douglas Hockensmith · Yayınevi bilinmiyor

48 sayfa · 1943

Agriculture

CiltWater and Agriculture. A Symposium Presented at the Washington Meeting ... December 29-30, 1958. Edited by Roy D. HockensmithAmerican Association for the Advancement of Science, Roy Douglas HOCKENSMITH

Water and Agriculture. A Symposium Presented at the Washington Meeting ... December 29-30, 1958. Edited by Roy D. Hockensmith

American Association for the Advancement of Science, Roy Douglas HOCKENSMITH · Yayınevi bilinmiyor

198 sayfa · 1960

Kategori yok

Soil erosionSoil ErosionRoy Douglas Hockensmith, John Gordon Steele

Soil Erosion

Roy Douglas Hockensmith, John Gordon Steele · Yayınevi bilinmiyor

16 sayfa · 1971

Soil erosion

AgricultureResources Survey Project, Ministry of Agriculture, Brazil, Review ReportRoy Douglas Hockensmith

Resources Survey Project, Ministry of Agriculture, Brazil, Review Report

Roy Douglas Hockensmith · Yayınevi bilinmiyor

Sayfa sayısı yok · 1966

Agriculture

BoxwoodCulture, Diseases, and Pests of the Box TreeCarl Rohwer, Charles Harvey Hadley, Clarice Louisba Scott Scott, Edgar Cecil Tullis, Freeman Albert Weiss, Roland McKee, Roy Douglas Hockensmith, Raymond Alexander St. George

Culture, Diseases, and Pests of the Box Tree

Carl Rohwer, Charles Harvey Hadley, Clarice Louisba Scott Scott, Edgar Cecil Tullis, Freeman Albert Weiss, Roland McKee, Roy Douglas Hockensmith, Raymond Alexander St. George · Yayınevi bilinmiyor

30 sayfa · 1940

Boxwood

West Indian ConferenceReport on Eleventh Meeting of Caribbean Commission and West Indian Conference (fourth Session) Held at Curacao, N.W.I. November 24 - December 11, 1950Roy Douglas Hockensmith, Caribbean Commission

Report on Eleventh Meeting of Caribbean Commission and West Indian Conference (fourth Session) Held at Curacao, N.W.I. November 24 - December 11, 1950

Roy Douglas Hockensmith, Caribbean Commission · Yayınevi bilinmiyor

18 sayfa · 1951*

West Indian Conference

Soil conservationConservation, Cooperative JobBilinmeyen yazar

Conservation, Cooperative Job

Bilinmeyen yazar · Yayınevi bilinmiyor

8 sayfa · 1962

Soil conservation

CiltEffect of Nitrate of Soda on the Yield, Protein Content, and Quality of Wheat Under Missouri ConditionsRoy Douglass Hockensmith

Effect of Nitrate of Soda on the Yield, Protein Content, and Quality of Wheat Under Missouri Conditions

Roy Douglass Hockensmith · Yayınevi bilinmiyor

88 sayfa · 1928

Kategori yok

CiltOur Land ResourcesR. D. Hockensmith

Our Land Resources

R. D. Hockensmith · Yayınevi bilinmiyor

Sayfa sayısı yok · 1949

Kategori yok

SoilsLand Classification in a Caribbean Land Improvement ProgramRoy Douglas Hockensmith

Land Classification in a Caribbean Land Improvement Program

Roy Douglas Hockensmith · Yayınevi bilinmiyor

18 sayfa · 1950

Soils

CiltReport on Fourth International Congress of Soil Science, Amsterdam, July 24 - August 1, 1950Roy Douglas Hockensmith

Report on Fourth International Congress of Soil Science, Amsterdam, July 24 - August 1, 1950

Roy Douglas Hockensmith · Yayınevi bilinmiyor

32 sayfa · 1950*

Kategori yok

Land use, RuralLand Inventory Basic to a Conservation ProgramRoy Douglas Hockensmith, United States. Soil Conservation Service

Land Inventory Basic to a Conservation Program

Roy Douglas Hockensmith, United States. Soil Conservation Service · Yayınevi bilinmiyor

9 sayfa · 1949

Land use, Rural

Agricultural conservationThe Scientific Basis for Conservation FarmingBilinmeyen yazar

The Scientific Basis for Conservation Farming

Bilinmeyen yazar · Yayınevi bilinmiyor

16 sayfa · 1947

Agricultural conservation

Land use, RuralThe Concept and Principles of Classifying Land According to Its CapabilityRoy Douglas Hockensmith, United States. Soil Conservation Service

The Concept and Principles of Classifying Land According to Its Capability

Roy Douglas Hockensmith, United States. Soil Conservation Service · Yayınevi bilinmiyor

18 sayfa · 1949

Land use, Rural

Land useClassification of Land According to Its Capability as a Basis for a Soil Conservation ProgramRoy Douglas Hockensmith

Classification of Land According to Its Capability as a Basis for a Soil Conservation Program

Roy Douglas Hockensmith · Yayınevi bilinmiyor

16 sayfa · 1949

Land use

SoilsHow to Obtain Soil Samples for AnalysisRoy Douglas Hockensmith

How to Obtain Soil Samples for Analysis

Roy Douglas Hockensmith · Yayınevi bilinmiyor

7 sayfa · 1930

Soils