Yazar
h somsen
5 cilt bulundu.
Cilt sonuçları
Yearbook of European Environmental Law
H. Somsen · Oxford University Press, USA
856 sayfa · 2002
Environmental policy, europe / Environmental law, europe
Hessian fly biotype distribution, resistant wheat varieties and control practices in hard red winter wheat
H. W. Somsen · Agricultural Research Service, U.S. Dept. of Agriculture, North Central Region
Sayfa sayısı yok · 1975
Agriculture
The wheat curl mite, Aceria tulipae Keifer, in relation to epidemiology and control of wheat streak mosaic
H. W. Somsen · Agricultural Experiment Station
24 sayfa · 1970
Control / Plant mites as carriers of disease / Wheat curl mite / Wheat streak mosaic disease / Wheat streak mosaic virus