Ecological and production aspects of plant protection against weeds
2002
Rola, H. (Institute of Soil Science and Plant Cultivation, Pulawy (Poland). Branch in Wroclaw. Dept. of Ecology and Weed Control)
Quantitative and qualitative determination of segetal flora composition is the base on which a right strategy of crop protection against weeds should be determined. Based on 120 thousand of analyses the condition and degree of weed infestation of crops dependence on a type of farms was shown. 35-year's phytosociological researches on occurrence of weeds allowed to determine the status and degree of weed infestation of field crops in Poland by 18 dominant species of weeds, which influence crop yielding. Methods of plant protection were reviewed
显示更多 [+] 显示较少 [-]