摘要
通过种植密度与多种生长调节剂互作,对夏玉米‘淄单11’的叶面积指数、单株干物质积累量、籽粒灌浆速率与产量性状进行试验分析,探讨鲁中地区夏玉米‘淄单11’良种良法推广的合理种植密度及生长调节剂的选择使用。结果表明:‘淄单11’最大种植密度7.5万株/hm2,超过此密度会显著降低产量。密度增加不施用生长调节剂会减弱‘淄单11’秸秆的抗倒伏能力。6.75万株/hm2密度‘氨基酸水溶肥’处理可获得最佳的产量,成熟期延后可作为储藏玉米果穗生产,但不宜过迟收获;7.5万株/hm2密度‘30%氨酰酯·乙烯利’处理能以较低的叶面积指数、单株干物质积累量,较短的成熟期获得相对稳定的产量,且抗倒伏能力最佳,适宜鲁中平原地区‘淄单11’土地集约化模式的粮食生产。
Through the interaction between planting density and various of growth regulators,the leaf area index,dry matter accumulation per plant,grain filling rate and yield characters of summer maize‘Zidan11’were tested and analyzed,the reasonable planting density and the selection and use of growth regulators of summer maize‘Zidan11’in central Shandong were discussed.The results showed that the maximum planting density of‘Zidan11’was 75000 plants/hm2,and the yield would decrease significantly if the density exceeded this.When the density increased without the application of growth regulator,the lodging resistance of‘Zidan11’straw would be weakened.The best yield could be obtained by the treatment of 67500 plants/hm2 densityand‘amino acid water-soluble fertilizer’.The maturity period with the treatment was delayed and could be used as storage corn ear production,but it should not be harvested too late.The treatment with the density of 75000 plants/hm2 and‘30%aminoacyl ester and ethephon’could obtain relatively stable yield with low leaf area index,dry matter accumulation per plant and short maturity period,and had the best anti-falling ability,which was suitable for the grain production of‘Zidan11’land intensive mode in the central Shandong Plain.
作者
陈军
张海军
李晓宇
李文倩
CHEN Jun;ZHANG Haijun;LI Xiaoyu;LI Wenqian(Zibo Academy of Agricultural Sciences,Zibo 255033,Shandong,China)
出处
《农学学报》
2023年第7期12-19,共8页
Journal of Agriculture
基金
国家重点研发计划项目“黄淮海东部小麦-玉米周年光温水肥资源优化配置均衡丰产增效关键技术研究与模式共建”专项“粮食丰产增效科技创新”(2017YFD0301003)。
作者简介
第一作者:陈军,男,1975年出生,山东淄博人,高级农艺师,函授大学,研究方向:玉米减灾增效、籽粒机收栽培技术研究。通信地址:255033山东省淄博市张店区商场西街197号,Tel:0533-2865842,E-mail:cj0533@163.com;通信作者:张海军,男,1974年出生,山东淄博人,正高级农艺师,主要从事作物育种与栽培研究。通信地址:255033山东省淄博市张店区商场西街197号,E-mail:nkyzhanghaijun@zb.shandong.cn。
