Yazar
Robin Bortnem
20 cilt bulundu.
Cilt sonuçları
Cultivar Tests in South Dakota, 1987 Report
Kevin D. Kephart, Edward Keith Twidwell, Robin Bortnem, South Dakota State University. Plant Science Department · Yayınevi bilinmiyor
23 sayfa · 1987
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Cultivar Tests in South Dakota, 1991 Report
Edward K. Twidwell, Kevin D. Kephart, Robin Bortnem, South Dakota State University. Plant Science Department · Yayınevi bilinmiyor
15 sayfa · 1991*
Alfalfa
Cultivar Tests in South Dakota, 1988 Report
Kevin D. Kephart, Edward Keith Twidwell, Robin Bortnem, South Dakota Agricultural Experiment Station · Yayınevi bilinmiyor
15 sayfa · 1989
Alfalfa