خيارات البحث
النتائج 1 - 10 من 1,208
Cotton production under irrigation in Ethiopia. Proceedings of the symposium
1982
Institute of Agricultural Research, Addis Ababa (Ethiopia) eng | Symposium on Cotton Production under Irrigation in Ethiopia eng Oct 1982 Melkawerer (Ethiopia)
Zoohygienic investigations in two types of cowsheds for fatstock. Part 1. Physical and chemical properties of air [temperature; humidity; chemical contamination; Poland]
1982
Rokicki, E. | Maslowska, I. | Roga-Franc, M. | Kosla, T. | Kolbuszewski, T. (Warsaw Agricultural Univ., Warsaw (Poland). Dept. of Zoohygiene and Prophylaxis in Animal Production)
Zoohygienic investigations were done in two types of cowsheds for fatstock on a state farm "S" in winter and summer 1977. The investigations were carried out in Opole type building with walls made of brick and Bialystock type building with walls made of wooden elements. Once a week in January and February and also in July and August the following physical and chemical properties of air were examined: temperature, absolute and relative humidity, speed of air movement, cooling and CO2, NH3 and H2S concentrations
اظهر المزيد [+] اقل [-][Agricultural production of fish (in Switzerland)]
1982
Rohrer, E.
[Agricultural production improvement project in Democratic Yemen]
1982
Batahir, A.S.
Farmwomen's participation in United States agricultural production
1982
Ross, Peggy Johnston
Commercial egg and broiler production
1982
Bastien, R.W.
Computer applications in food production and agricultural engineering
1982
Kálmán, Róbert | Martínez, Jesús
Agricultural production in the United States by county
1982
Shor, R. W. | Baes, Charles F. | Sharp, R. D. (Ron D.)
Die landwirtschaftliche Produktion in Indien | Agricultural production in India
1982
Laping, Johannes
