5Basedow V T. Susceptibility of different spring wheat varieties to infestation by the two wheat blossom midge species[J]. Bulletin for Pest Research and Environment Protection, 1977,50:129-131. 被引量:1
6Cambardella C A, Moorman A T, Novak J M,et al. Field-scale variability of soil properties in central Iowa soils[J]. Soil Science Society of America Journal, 1994,58 : 1501-1511. 被引量:1