干旱地区农业研究2011，Vol.29Issue(6)：152-156,5.
施肥与保水剂对半干旱区马铃薯增产效应的研究
Effects of fertilization and water retaining agent on yield of potato
摘要
Abstract
Effects of mixed use of fertilizer and water retaining agent on potato yield were studied in semi-arid area of central Gansu. The results showed that the water retaining agent or fertilizer alone could increase potato yield, while the coordinate application of water retaining agent and fertilizer could improve the yield of vegetable remarkably, arisen from interaction effect of water retaining agent and fertilizer. Water retaining agent could improve crown and photosynthesis area of potato. Mixed use of fertilizer and water retaining agent could improve photosynthetic rate and extend growth stage by 8 ~ 12 d in the leaf and stem of potato in flowering and tuber expansion stage. To sum up, mixed use of fertilizer and water retaining agent could improve high photosynthesis, increase photosynthesis area and prolong photosynthetic period, resulting in an increase in yield. Compared with control, treatment B had significant effect on potato yield, increased by 27.8% .关键词
保水剂/施肥/产量/马铃薯Key words
water retaining agent/ fertilization/ yield/ potato分类
农业科技引用本文复制引用
张朝巍,董博,郭天文,张东伟..施肥与保水剂对半干旱区马铃薯增产效应的研究[J].干旱地区农业研究,2011,29(6):152-156,5.基金项目
中加合作IPN1资助项目"甘肃省主要农业土壤养分管理与平衡施肥"(NMBF-Gansu-2008) （NMBF-Gansu-2008）
