I. Introduction A.The Greenhouse n n an environmentally controlled structure designed for the production of plants.

B.Greenhouse Advantages n n Control of Aerial Environment –Light intensity –Temperature –CO 2 –Day length –Humidity –Air circulation Root Environment –Growing media - air and water –Irrigation –Fertilization Insect and disease

n n Almost every factor required for plant growth regulated for maximum production. n n Growth rooms with optimum lighting in the future represent completely controlled environments. n n Production of 5 times the quantity of a product than can be grown in field environment.

C.Crops Produced in Greenhouses All Plants Flowering crops –Cut flowers –Pot plants –Bedding plants –Foliage plants

Vegetable and fruit crops –Lettuce –Cauliflower –Tomatoes –Strawberry –Broccoli –Cucumbers –Radish Nursery crops –Propagation –Overwintering –Growing

D.What Determines Greenhouse Location? 1.Market Developed and industrialized countries Large population Product Size Competitors Price Quality

2.Climate Light Temperature Weather Pollution

3. Transportation 4. Low production costs Fuel Labor Water Electricity Taxes Government support

5.Import restrictions 6.Site Air movement Drainage Soil Convenience Zoning

7.Funding Production credit Farmer's home Adm. Land bank Banks Entrepreneur

8.Abilities of owner Manage –People –Money –Production Market product Competitive ability

E.World Greenhouse Acreage United States Japan The Netherlands West Germany Great Britain Italy

F. U.S. greenhouse Industry -9,000-10,000 growers -3-4 billon $ industry -Acres: 10, polyethylene 2500-fiberglass & rigid plastics 2000-glass Shade 800 acres G. Kentucky Greenhouse Industry

U.S. Floriculture Production Acres Acres n California 2,866 n Florida 1,452 n Ohio 543 n Michigan 574 n New York 371 n Pennsylvania 383 n Texas 461 n Illinois 186 n New Jersey 236 n North Carolina 224 n Colorado 222 n Oregon 210 n Washington 156 n Hawaii 68 n Wisconsin 129 n Minnesota151 n Maryland130 n Indiana 142 n Missouri116 n Massachusetts 98 n Alabama 118 n Georgia 98 n Iowa 89 n Tennessee 99 n Kansas 58 n Virginia 45 n Connecticut 52 n Arkansas 34

G. G. Problems facing industry n n Fuel cost- heating, electricity, transportation n n Labor - availability & cost n n Pesticide use – availability & restrictions n n Water - quality & available n n No runoff

n n H. Future-increase protected crop production Increasing ultraviolet radiation on plants Decreasing fresh water supplies and quality Increasing erosion of top soil and degradation Increasing problems with insect pests and diseases Global climate changes