There is more than 67 300 hectares saline-alkali and in North of Ningxia Yinchuan Area.Xinghai town in the worst places for saline,farmers build stair-fields greenhouse,and cultivate vegetables with sand instead of saline soil,achieve the saline-alkali land utilization.Technicians straw biological reactor technology experiment was carried out since 2011,vegetable yield and benefit further improved.To reflect the technology in the main variety of tomato in winter and spring crop specific effect,and choose the corn stover optimum dosage，the technical personnel to carry out the straw different dosage of contrast test in October 2012 to July 2013,with corn stalk，straw fermentation ditch rotten agent and urea as the materials，using straw under the built-in line type.The experimental results showed that applying the technology of straw biological reactor greenhouse than ordinary cultivation greenhouse，20 cm ground temperature increased by 2.4℃ from November to February，in the same greenhouse，the warming effect of straw using 3 500 kg/667m2 treatment was the most obvious.Straw reactor treatment plot comprehensive index were higher than the ordinary cultivation techniques.It’s advised to choose every 667 m2 to 4 000 kg dosage promotion in production.