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对内蒙古呼盟与乌盟旱作马铃薯优化栽培下的干物质积累状况进行了研究。结果表明 :马铃薯全生育期植株干物质积累量呈“S”型曲线变化 ,干物质积累速率呈单峰曲线 ,峰值出现在块茎快速增长期 ,干物质积累百分率以块茎增长后期至淀粉积累期较高 ;马铃薯生育期间不同器官干物质积累中心依次为叶片、地上茎、块茎 ;两地区不同品种优化栽培下的各项栽培生理指标均优于一般生产田和不施肥处理 ,其产量差异达显著或极显著水平
The accumulation of dry matter under potato cultivation in Hudu League and Wuhui League in Inner Mongolia was studied. The results showed that the dry matter accumulation of potato during the whole growth period showed a curve of “S” type, the dry matter accumulation rate showed a single peak curve, the peak appeared in the rapid growth stage of tubers, and the percentage of dry matter accumulation increased from late stage of tuber to starch accumulation High; the dry matter accumulation centers of different organs during potato growth were leaves, shoots and tubers in turn; all the cultivated physiological indexes under different cultivars were better than those under normal production and no fertilization treatments, and the differences were significant Significant level