رياض خليل عبدالرحمن Admin
عدد المساهمات : 419 نقاط : 10234 تاريخ التسجيل : 19/01/2012 العمر : 31 الموقع : أم درمان / الصالحة
| موضوع: مقدمه فى الزراعه المحاضرة الثانية 2012-05-02, 7:41 am | |
| Agriculture As Science
1-cytology دراسه الخليه 2-morphology دراسه الخليه 3-plant anatomy التشريح 4-plant physiology وظائف الاعضاء 5-biochemistry الكيمياء الحيويه 6-plant biophysics الفيزياء الحيويه 7-plant ecology
Horticulture: Pomology:(fruit production) (oranges,lemon,mangoes,dates,guava,bananas….)
Vegetables:tomatoes,potatoes,okra,jews,mallow,purslane,cucumber,melons,pumpkin…
Omamentals
Forestry: Is the art and science of managing forests tree plantations, and related natural resources. The main goal of forestry is to create and implement systems that allow forests to continue a sustainable continuation of environmental supplies and services.
Forestry also includes the development of better methods for the planting, protecting, thinning, controlled burning, extracting, and processing of timber in includes:
Production of timber and other construction materials,
Production of fuel
Production of gum Arabic
Conservation of soil
Changing or influencing climate
Land scaping
Reforestation:is where trees are planted and tended in a given area.
Afforestation is planting seeds or trees to make a forest on land which has not been a forest recently.
Deforestation:is the clearance of naturally occurring forests by logging and burning.
Meat technology: meat production and processing. Fish rearing: Wild life:
Animal Production
Dairy farming: production of milk & its products. Poultry: production of chickens, pigeons and their products.
The Origin Of Crop Plant The center of origin is a geographical area where a group of organisms, either domesticated or wild, frist developed its distinctive properties. Many authorities belive centres of origin are also centres of diversity
Two kinds of evidence help determining the origins of agriculture and crop plant: 1-Archaeological evidence of the remains of primitive agricultural communities (provides information about time and place of early agiculture) 2-Genetics: distribution of genetic diversity of crops and their wild relatives.
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