西北旱作区施用保水剂对土壤水分及作物生长的影响

为了探明海瑞达保水剂在西北干旱半干旱地区施用对土壤水分含量和对作物生长的影响，以马铃薯和玉米为研究对象，在13个试验点进行试验。结果表明，施用保水剂（a2）较露地（a1）相比，可明显提高马铃薯和玉米的出苗率、株高、茎粗、土壤水分含量，其使用效果较地膜（a3）相比，差异不大；a2处理下较a3相比，马铃薯产量最大增产率为29.2%，玉米产量最大增产率为27.1%。研究为进一步推广保水剂替代地膜技术奠定基础。

Effect of Hairuida Super Absorbent Polymers on Water Retention and Maize Growth in Northwest China

In order to ascertain the impact of Haruida''s water retaining agent on soil moisture content and maize growth in arid and semi-arid areas in Northwest China, potatoes and maize were used as the research objects and experiments were conducted at 13 test points. The results showed that the application of water-retaining agent (a2) could significantly increase the emergence rate, plant height, stem thickness, and soil moisture content of potato and maize compared with open field (a1). Compared with mulching film (a3), the effect of its use was different,but not obvious; Compared with a3 treatment, the maximum increase rate of potato output was 29.2%, and the mximum increase rate of maize output was 27.1%.This study lays a foundation for the further promotion of super absorbent polymers instead of plastic film technology.