Bitki Su-Verim (Üretim) Fonksiyonları

Yıl 1989, Cilt: 2 Sayı: 2, 33 - 49, 01.12.1989

Ruhi Baştuğ

Öz

Etkin ve yüksek verimli bitkisel üretim için önemli bir girdi olan suyun en iyi biçimde kullanılması gerekir. Bu ise, farklı yetişme koşullarında yağış ve sulama yoluyla sağlanan suyun bitki gelişimi ve verimi üzerindeki etkilerinin anlaşılmasıyla mümkündür.
Günümüzde su ekonomistleri ve mühendisler, sulanan başlıca bitkilerin eksik(kısıntılı) sulama koşullarındaki verimlerini ve sağlayacakları gelirleri kestirebilen su-verim(üretim) fonksiyonlarına gereksinim duymaktadırlar.
Verim ve su kullanımı arasındaki ilişki; sulamanın ekonomik değerinin belirlenmesi, farklı sulama rejimlerinin değerlendirilmesi ve optimum sulama düzeylerinin saptanması açısından oldukça önemlidir.
Bu makalede, bitki su-verim fonksiyonu kavramının açıklanması, günümüze değin geliştirilen bazı su-verim fonksiyonlarının gözden geçirilmesi ve kullanılan yaklaşımların özetlenmesi amaçlanmıştır.

Anahtar Kelimeler

Bitki Su, Verim, irrigation

Crop Water-Production Functions

Öz

For high yielded crop production, as an important input, water must be use effectively. This İs possible, when we learn the effects of the water supplied by means of rainfall and irrigation, on the crop growth and yield, under different cropping conditions.
Today, water economists and engineers require methods for developing water- production functions useful in estimating yield and profits, for main irrigated crops under water-deficit conditions.
Crop yield vs. water use relationships can provide a basis for assessing the economic value of irrigation, the relative performance of alternate scheduling methods, the optimum levels of irrigation.
The purpose of this article were to describe the concept of the water- production function, to review some of the water-production functions which developed until now and to summarize the main approaches.

Anahtar Kelimeler

Crop, Water, irrigation

Kaynakça

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