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保水剂农业节水、保水、增产新技术一直是国内外学者重点研究的对象之一，但目前缺少一些基础性研究数据，本文着重就保水剂物理保水特性及对作物出苗的影响进行探讨。结果表明保水剂具有良好的膨胀性、吸水快和减少蒸发的特性，特别是改变水分特征曲线，大幅度增加土壤有效水，促进作物出苗作用尤为突出，可成为未来人工调控土壤水分的重要手段，应用前景非常广阔。
Water-holding agent Agriculture Water-saving, water-holding and new technology for increasing production have always been one of the focuses of scholars at home and abroad. However, some basic research data are lacking at present. This paper focuses on the physical water-holding characteristics of the water-holding agent and its impact on crop emergence. The results show that the water-retaining agent has good expansibility, fast water absorption and reduced evaporation characteristics, especially changing the water characteristic curve, greatly increasing soil effective water and promoting crop emergence. It is an important means to control soil moisture in the future, Application prospects are very broad.