This paper introduces a software specially in calculating the contribution rate of machanization in agriculture by usng economy math method ,computer technology
Nitrate Reductase (NR) is a rating-limit and key enzyme of nitrate assimilation in plants ,so ,NR activity is important for growth,development and the dry matte
Physiological meturity stage,kel water content in physiological maturity and natural drydown rate of 42 maize inbred lines and 8 hybrids were studied in field t
Physiological studies of soybean [Glycine max(L.)Merr.]genotypes with wide differences in seed protein concentration may permit detection of important yield-rel