通过试验观测石膏基盐碱土调理剂对饲料玉米产量、土壤pH和全盐含量的影响，结果表明，石膏基盐碱土调理剂施用量为9 000 kg/hm2时，饲用玉米的生物产量最高，同时显著降低土壤pH和土壤全盐含量。河西走廊盐碱土改良及增加饲料玉米产量，以施用石膏基盐碱土调理剂9 000 kg/hm2为宜。

The effects of gypsum-based saline-alkali soil conditioner on yield， soil pH and total salt content of feed corn were observed. The results showed that the lower feed maize with the dosage of 9 000 kg/hm2 of gypsum-based saline-alkali soil conditioner had the highest biological yield and significantly reduced the soil pH and total soil salt content. In order to improve the saline-alkali soil in Hexi Corridor and increase the yield of feed corn， it is advisable to apply gypsi-based saline-alkali soil conditioner of 9 000 kg/hm2.

S156.2

酒钢集团吉瑞再生资源开发有限责任公司项目“酒钢固废农业资源化利用技术研究”[2013(14)]。