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宁夏银川以北地区盐碱地面积67 300hm~2,低洼重盐碱地区星海镇通过用风沙压碱建设台田温室、采用沙培方式种植蔬菜等措施,实现了盐碱地高效利用。2011年引进秸秆生物反应堆技术,蔬菜产量效益进一步提高。为体现该技术在主栽品种番茄冬春茬上具体效果,确定主要农作物玉米秸秆具体用量,2012年10月至2013年7月,以玉米秸秆、秸秆发酵沟腐熟剂和尿素为材料,采用秸秆内置式行下式方式,开展了秸秆不同用量对比试验。结果表明:应用秸秆生物反应堆技术温室较普通技术栽培温室,11—2月20cm地温提高2.4℃;在同一试验温室内,秸秆用量3 500kg/667m~2增温效果最明显,秸秆反应堆处理小区综合指标均高于普通栽培技术,T2处理效果最显著,建议大面积推广秸秆生物反应堆宜选择4 000kg/667m~2用量。
In the area north of Yinchuan in Ningxia, the area of saline-alkali soil is 67 300hm ~ 2. In Xinghai town of low salinization area, the saline-alkali land is utilized efficiently by means of sand-bed planting of vegetables in Taichu greenhouse. In 2011, straw bio-reactor technology was introduced to further increase the yield of vegetables. In order to reflect the specific effect of the technology on the winter and spring tomato varieties of the main cultivars, the specific amount of corn stover for the main crops was determined. From October 2012 to July 2013, corn stalks, straw fermentation ditch composting agent and urea were used as raw materials, Built-in line under the style, carried out a different amount of straw comparative test. The results showed that straw greenhouse was cultivated in the greenhouse by conventional techniques and the soil temperature increased by 2.4 ℃ at 20cm in November-February. In the same experimental greenhouse, the effect of increasing the temperature of straw by 3 500kg / 667m 2 was the most obvious, Indicators are higher than the average cultivation techniques, T2 treatment effect is most significant, it is recommended to promote large-scale straw bioreactor should choose 4 000kg / 667m ~ 2 dosage.