Gary R. Cline

Education

  • B.S., Forest Science, Ohio State University, 1975
  • M.S., Forest Science, Ohio State University, 1976
  • Ph.D., Forestry and Plant Nutrition, Colorado State University, 1983

gcline@gwmail.kysu.edu

 

Research Focus

Current research is examining and developing sustainable means of producing vegetables for limited-resource farmers with an emphasis on organic farming. Sustainable production methods under investigation include the use of winter cover crops, living mulches, and conservation tillage practices. Past research has examined effects of acid soils on legumes.

Current Projects

Use of Conservation Tillage, Living Mulch, and Cover Crops For Sustainable Vegetable Production:
    Limited-resource farmers in Kentucky and surrounding states need to adapt high-value crops such as vegetables to offset expected declines in tobacco production. Sustainable vegetable production methods need to be developed that minimize the use of agricultural chemicals and insure future agricultural productivity. These methods include the use of legumes, winter cover crops, living mulches, and conservation tillage. Organic vegetable production uses many sustainable practices and may be a niche market for small farmers.
    The abilities of winter cover crops (winter rye, hairy vetch, and a mix) and a living mulch (subterranean clover) to supply nitrogen to peppers and cabbage are being examined. Also, effects of living-mulch, no-tillage, and strip-tillage are being determined on peppers and cabbage production. Treatment effects are evaluated by measuring vegetable yields, weeds, foliar N, soil N, soil water, soil compaction, and soil temperature.

Support Staff

Student Involvement

Each year the project employs a K.S.U. student worker and a high school student participating in the Research and Extension Apprenticeship Program.

Covcrops.JPG (12563 bytes) NTplant.JPG (74750 bytes) NTpepper.JPG (32335 bytes) students.jpg (47055 bytes)
Cover Crops in May  No-till Vegetable Planter No-till Peppers  Students Recording  Data 

Recent Publications

Cline, G.R. and A.F. Silvernail. 1997. Effects of soil acidity on growth of sericea lespedeza. J. Plant Nutr. 20: 1657-1666.

Cline, G. R. and A. F. Silvernail. 1997. Effects of acidic minesoil on nodulation of sericea lespedeza (Lespedeza cuneata; Fabaceae) by the bacterium Bradyrhizobium. Trans. Ky Acad. Sci. 58:80-84.

Velagaleti, R.R. and G.R. Cline. 1995. Biological Nitrogen Fixation in Legumes and Nitrogen Transfer Crop Plants. In Pessarakli (Ed.) Handbook of Plant and Crop Physiology. Marcel Dekker, New York, NY.

Cline, G.R. and Z. Ngewoh Senwo. 1994. Tolerance of lespedeza Bradyrhizobium to acidity, aluminum, and manganese in culture medium. Soil Biol. Biochem. 26:1067-1072.

Cline, G.R. and Z. Ngewoh Senwo. 1993. Inhibitory effects of acidic minesoil on the sericea lespedeza/Bradyrhizobium symbiotic relationship. J. Plant Nutr. 16:1867-1880.

Links to Other Sites

Click here to return to the Plant & Soil home page.

Click here to return to the CRS home page.

Click here to return to the LGP home page.