تأثير العوامل الجغرافية البشرية على متوسط إنتاجية محصول القمح في منطقة تبوك بالمملكة العربية السعودية ، في الفترة من 1970 إلى 1990م

This research studied the human geographical factors that affect crop yield of wheat in Tabouk area of the Kingdom of Saudi Arabia. The study was conducted in a sample of 71 farms randomly chosen from a total of 713 wheat farms distributed in Tabouk area. The data were collected through personal contacts with the farmers who answered the questions submitted to them in the forms that were mainly designed for this purpose. The results showed ownership type, agricultural experience of the labors, method of farming system, soil type, quantity of fertilizer applied, farm area and period of farm utilization had significantly affected average wheat yield in Tabouk area. The results also showed that the costs of production per unit farming area was inversely proportional to the farm area and that farm area had a positive effect on the average income.