Bahattin AKDEMIR, Simon BLACKMORE

Verim Haritası Hazırlama Üzerine Bir Araştırma

Bu çal ışmada; bir tar ı m iş letmesinde biçerdöverle hasat edilen ürünler için verim de ğerlerinin elde edilmesi, verim haritalar ı n ı n nas ı l elde edildiğ i ve nas ı l değerlendirildiğ i aç ı klanmaya çal ışı lm ışt ı r. Araşt ı rma 2001 y ı l ı nda Danimarka'da Royal Veterinary and Agricultural University'de yürütüldü. Bu üniversiteye ait olan 4 çiftlikte ki 40 tarlan ı n 1998, 1999 ve 2000 y ı l ı veriler' incelenerek verim haritalar ı oluşturuldu. Verim haritalar ı oluşturulurken; öncelikle biçerdöver üzerinde bulunan konum belirleme ve verim ölçme sistemleri arac ı l ığı ile elde edilen veriler bilgisayara aktarı ld ı . Bu dosyalar içindeki konum verileri enlem ve boylam dereceleri ve verim de ğerleri kg/ha ile ilgili veriler al ı nd ı . Enlem ve boylam değerleri derece cinsinden Universal Transverse Mercator olarak tan ı mlanan koordinat sistemine göre çevrildi. Yeni koordinat veriler' ile verim de ğerleri birle ştirildi. Bu verilerden yararlan ı larak haritalama program ı ile tarla s ı n ı rlar ı dijital olarak tan ı mlanmış , say ı sal olarak kaydedilmi ş ve verim haritalar ı elde edilmiştir.

Anahtar Kelimeler:

verim haritalama, hassas tar ı m, coğ rafik bilgi sistemi

A Methodology for Production of Yield Mapping

In this study, preparation methodology of the yield map will be explained. The yield data was collected from Royal Veterinary and Agricultural University Research Farms for three years by Agro Technology Department. Four farms were included in the study and each farm had 10 fields. The data was collected for different growing crops for the years of 1998, 1999 and 2000. The yield mapping system located in a combine includes differential global positioning system DGPS and yield measuring system. The DGPS and yield measurement system send data to the computer for each 1.2 second for determined position of the combine. Columns in the file include longitude; latitude and yield values for a field. Only coordinate values were converted from longitude/latitude projection to Universal Transverse Mercator UTM projection datum of which was World Geodetic System.1984 WGS 1984 . These new coordinates were put in the file used to get yield map.

Keywords:

yield mapping, precision farming, geographical information system,

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