大棚西红柿三茬连作效益高丰南市银丰镇张恩庄村王秀增，在０．７５亩大棚内种西红柿，三茬连作创收入１４７００元（折合亩产值１９６００元）。扣除种子、农药、化肥等项开支５０００元，纯收入９７００元。他的主要做法是：一、上茬西红柿品种为佳粉２号。头年１２月２... Greenhouse tomato three stubble even for the benefit Gao Feng Nan Yin Fengzhen Zhang En Zhuang Village Xiuzeng increase in 0.75 acres of greenhouses planted tomatoes, crop stubble for a record income 14,700 yuan (equivalent to 19,600 yuan per mu output value). Excluding seeds, pesticides, fertilizers and other expenses 5000 yuan, net income 9700 yuan. His main approach is: First, the crop on the good varieties of pink powder No. 2. The first year of December 2 ...