1Davis J M, Ester E A. Spacing and pruning affect growth, yield,and economic returns an staked fresh-market tomato [J].Journal of the American Society for Horticultural Science, 1993, 118 (6):719 -725.
2Hemandez, Gonzalez V M, F Sanchez del Castillo. Response to planting distance and pruning system in tomatoes growing in hydroponic culture in a basic greenhouse [J] .Revista Chapingo, 1992, 15(73-74): 23-25.
9Davis J M,Ester E A.Spacing and pruning affect growth, yield,and economic returns on staked fresh_market tomato. Journal of the American Society for Horticultural Science . 1993
10Hemandez,Gonzalez V M,F Sanchez del Castillo.Response to planting distance and pruning system in tomatoes growing in hydroponic culture in a basic greenhouse. Revista Chapingo . 1992
