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1、,1, ,Principle + Crop + Production, + + ,“ ”, , (Principles of Crop Production), ,AGRICULTURAL DISCIPLINES AND RELATED SCIENCES,+ + + + + , ,DEFINITION OF AREAS OF AGRICULTURAL DISCIPLINES,Agriculture - (agri L. = field, cultura L.=cultivation) - the science and technology of growing and raising pla
2、nts and animals. Crop Production -,Crop Husbandry - (husband-man),1) Forestry,AREAS OF AGRICULTURE,2) Agronomy,3) Horticulture,1) Forestry - - - the science and technology of culturing, utilizing and improving forest trees and their products.- ex. pulp, resins, oils, etc.,AREAS OF AGRICULTURE,AREAS
3、OF AGRICULTURE,2) Agronomy - - the science and technology of culturing, utilizing and improving field crops.- grain, fiber and forage crops,AREAS OF AGRICULTURE,3) Horticulture - ,(hortus L. = garden, cultura L. = cultivation) - the science, technology and art of culturing, utilizing and improving f
4、ruit, vegetable, flowering and ornamental plants,AREAS OF HORTICULTURE,4) Turf - grasses for lawns, landscapes, sport facilities and golf courses (in Agronomy in many Universities),1) Olericulture - vegetable culture and production,2) Pomology - fruit and nut culture and production,3) Ornamental Hor
5、ticulture - plants grown for aesthetic uses, improvement of quality of life and our environment, and functional uses (ex: energy conservation).,AREAS OF ORNAMENTAL HORTICULTURE,1) Floriculture - flowering and foliage plant culture and production,4) Landscape Horticulture - exterior and interior desi
6、gn, construction and maintenance of landscapes,3) Nursery Production - tree, shrub and vine culture and production,2) Floristry - floral design and retail floristry operation,Principle + Crop + Production,1. 2. 3. 4. ,Principle + Crop + Production,?,(Crop Plants), ,CLASSICAL GUIDELINES FOR PLACEMENT
7、 OF A CROP IN HORTICULTURE, AGRONOMY OR FORESTRY,3) Tradition or Custom - example sweet vs. field corn, or tobacco,1) Intensity of Production - example strawberries vs.cotton,2) Purpose Crop is Grown - example oak or pecan trees in forest vs. landscape, (Field Crops VS Horticulture Crops), : : : - ,
8、 Malthus (Multhusthian Theory) (Arithmetic Progression) (Geometric Progression), ,18, (arithmetic series) , vs., , 6 , ( ?,1. 1.1 1.2 (Multiple Cropping) - Sequential Cropping - Intercropping - Relay cropping - Ratoon Cropping 1.3 ,-?,1.3 , New Variety Cultural Practices Crop rotation Fertigation Plant density Plant Growth Regulators Plant Herbicides Pest and Disease Controls, . 2388 “( Late blight)” Phytophthora infestans (Stem rust) 2,4-D ,2., - (-) “” 30-50 ,
