论文部分内容阅读
环渤海地区盐碱滩涂地面积广阔,淡水资源紧缺现状制约着该地区土地资源开发和农业利用。新型海冰水资源的开发和利用有望打开这种尴尬局面。实验结果表明:海冰水灌溉下台田土壤耕作层平均盐分含量为2.45 g/kg,可以保障土壤耕层安全;3 g/L海冰水灌溉与无灌溉处理相比,油葵增产31.3%、甜高粱总糖量增产21.2%、紫花苜蓿增产27.0%。可见以海冰水为水源的“台田-浅池”综合利用模式对环渤海地区改良和利用盐碱地具有重要的参考价值。
The broad area of saline-alkali beach in the Bohai Rim region and the shortage of fresh water resources restrict the development of land resources and agricultural utilization in this area. The development and utilization of new sea ice water resources is expected to open this awkward situation. The experimental results showed that the average salt content of soil tillage layer under the sea ice water irrigation was 2.45 g / kg, which could ensure the safety of soil tillage. Compared with the non-irrigation treatment, the oil sunflower yield increased 31.3% The total sugar yield of sweet sorghum increased by 21.2% and that of alfalfa increased by 27.0%. It can be seen that the “Taitian-Shallow Pool” comprehensive utilization mode using sea ice as the water source has an important reference value for improving and utilizing saline-alkali soil in the Bohai Rim region.