Shandong Qingyun: "The new road" of saline-alkali land

In the golden autumn of October, 3,000 mu of paddy in a row in Yanwu Township, Qingyun County, Shandong Province, welcomed a bumper harvest, and when you look closer, it looks like a natural oil painting.

Qingyun County is adjacent to the Bohai Sea, a typical sea encroachment area, the land is alkaline, the water is salty, and food production was not high in the past.In recent years, Qingyun County has taken the opportunity of comprehensive land improvement in the whole area, introduced modern high-tech agricultural technology, built 6,000 mu of high-standard farmland on the original saline-alkali land, and opened a new chapter in the development of special products.

"We buried suction pipes underground, so that the saline-alkali water in the soil seeps into the suction pipes and then drains away via impermeable ditches, thus achieving the purpose of turning saline-alkali land into good land." Yu Litao, general manager of Zhongtian Water and Soil Management Technology (Shandong) Joint Stock Company, which is involved in the treatment of saline-alkali land in Qingyun County, said that by replacing above-ground pipes with underground suction pipes, a 20% land saving rate is achieved; the water saving rate of 30% is achieved through pipeline water recycling and reuse.

Qingyun County promoted the new model of "two-season rotation of rice and wheat", and carried out comprehensive land management through physical improvement, water conservancy improvement, chemical improvement, biological improvement and other ways, which not only improved land productivity, but also promoted the stability of the ecosystem.Qingyun County also cooperated with agricultural research institutions to test plant more than 40 different varieties of rice, from which the most suitable varieties for planting in Qingyun were selected for promotion. After yield testing, the mu yield of rice in the trial field has exceeded 750 kg, achieving a bumper rice harvest.

齐鲁网·闪电新闻10月28日讯 金秋十月，山东省庆云县严务乡3000亩连片水稻喜迎丰收，走近一看，宛如一幅浑然天成的油彩画。

庆云县地邻渤海，是典型的海侵区，地碱水咸，以前粮食产量并不高。近年来，庆云县以全域土地综合整治为契机，引进现代高新农业技术，在原来的盐碱地上建成6000亩高标准农田，开启特色产品发展新篇章。

“我们在地下埋设吸水管，使土壤里的盐碱水渗入吸水管，再经防渗沟排走，由此达到盐碱地变良田的目的。”参与庆云县盐碱地治理的中天水土治理科技（山东）股份公司总经理于利涛说，用地下吸水管代替地上管道，实现节地率20%；通过管道水循环再利用，实现节水率30%。

庆云县推广“稻麦两季轮作”新模式，通过物理改良、水利改良、化学改良、生物改良等方式进行土地综合治理，既提高了土地生产力，又促进了生态系统的稳定。庆云县还与农业科研机构合作，试种40多种不同品种的水稻，从中筛选出最适宜庆云种植的品种进行推广。经过测产，试验田水稻亩产已经超过750公斤，实现了水稻大丰收。

闪电新闻记者 赵宇 通讯员 杨坤 解青媛 德州报道