高分子树脂对玉米产量及生育指标的影响

Effect of high-hygroscopicity resin upon corn yields and growth indexes

在盆栽玉米上施用一定量的高分子树脂 ,可延迟玉米出现萎蔫的时间 ,改善玉米的经济性状。风沙土播种时的初始含水量在 1 5 %～ 2 0 % ,黑土播种时的初始含水量在 2 0 %～ 2 5 %时 ,施用树脂效果较好。每盆施用树脂 2 g～ 4g,可使盆栽玉米在风沙土上增产1 0 .63%～ 1 0 .95 % ,达 1 %显著水平 ;黑土上增产 5 .69%～ 9.78% ,接近或达到 5 %显著水平。在我国北方的旱作农业中 ,施用一定量的树脂 。

The results showed that the high hygroscopicity resin has the function of delaying the days of corn wilting, and improving economic properties. When the ranges of 20%～25% water content of wind blown sandy soil and 15%～20% water content of black soil, the effects are better. It can increase the corn yields of 10.63%～10.95% of wind blown sandy soil and 5.69%～9.78% of black soil by applying 2～4 g/pot resin.