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按玉米不同生育期施入不同量的高吸水性树脂(Super-absorbent resin简称SAR)进行正交试验,结果表明:在雨量过多的情况下,用SAR糊状拌种可提前出苗2天,用SAR粉状播种前撒施的,随着SAR的增加涝害越重;在后期干旱情况下,施用SAR的小区虽前期受涝,产量仍高于未施用SAR的小区;喇叭口期施用SAR多的小区产量优于施用量少的小区,也优于用等量分两次(播种期、喇叭口期)施用的小区,更优于没有施用的小区。
Orthogonal test was conducted with different amount of super-absorbent resin (SAR) applied at different growth stages of corn. The results showed that with the excessive rainfall, Before SAR sowing, the more severe the waterlogging was with the increase of SAR. In late stage drought, the area of SAR application was flooded in the early stage but the yield was still higher than that in the area without SAR; More plots yield better plots than those with less plots, and also better plots than those plots administered at equally divided doses (sowing, bolting), more favorably than plots that were not administered.