摘要
以先玉335为试材,在大田条件下分别设0(CK)、50(C1)、100(C2)、150(C3)、200 kg/hm^2(C4)5个不同的钙肥(以Ca计)施用水平处理,探讨不同施钙水平对玉米干物质积累与转运、子粒产量和商品品质以及矿质元素含量的影响。结果表明,C2~C3处理可显著提高玉米植株干物质积累量、花前营养体干物质转运量和花后同化物输入子粒量,2016和2017年子粒产量分别较CK处理显著提高12.48%~17.15%和8.76%~11.58%,产量增加主要得益于单位面积有效穗数、百粒重的明显提高。同时,C2~C4处理下子粒粗淀粉含量增加7.0~13.5 g/kg,C2~C3处理下子粒容重提升7.7~35.7 g/L,子粒钾含量在C2~C3处理下提升0.32~0.83 g/kg,锌含量仅在C3处理下增加明显。
Maize variety of Xianyu335 was used as experimental material.Five calcium fertilizer application levels of 0 kg/ha(CK),50 kg/ha(C1),100 kg/ha(C2),150 kg/ha(C3)and 200 kg/ha(C4)were set under field condi⁃tions,and the effects of different calcium fertilizer application levels on dry matter accumulation and translocation,grain yield,product quality,and mineral element content of maize were investigated.The results showed that dry matter accumulation for whole plants,dry matter translocation and post-anthesis dry matter accumulation were sig⁃nificantly increased under C2-C3 treatments.Compared with CK treatment,grain yield under calcium fertilizer treatments in 2016 and 2017 were obviously increased by 12.48%-17.15%and 8.76%-11.58%,the increase of yield was mainly due to a dramatic improvement of the number of productive ears in per unit area and the 100-grains weight.Meanwhile,grain crude starch contents under C2-C4 treatments were increased by 7.0-13.5 g/kg,grain test weight under C2-C3 treatments were raised by 7.7-35.7 g/L,respectively,compared with CK treatment,and all the differences were significant.Furthermore,grain potassium contents under C2-C3 treatments were signifi⁃cantly increased,the increased amount of which were 0.32-0.83 g/kg,and only with C3 treatment,grain zinc con⁃tents was significantly higher than CK treatment.
作者
尹雪巍
张翼飞
杨克军
王玉凤
张鹏飞
杨丽
YIN Xue-wei;ZHANG Yi-fei;YANG Ke-jun;WANG Yu-feng;ZHANG Peng-fei;YANG Li(College of Agriculture,Heilongjiang Bayi Agricultural University,Daqing 163319;Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement,Daqing 163319;Anhui Fengda Seed Industry Co.,Ltd.,Hefei 230000,China)
出处
《玉米科学》
CAS
CSCD
北大核心
2020年第3期155-162,共8页
Journal of Maize Sciences
基金
国家重点研发计划项目(2017YFD0300502、2018YFD0300101-07)
国家科技支撑计划项目(2015BAD23B05-04)
黑龙江省农垦总局科技计划项目(HNK135-02-03、HNK125B-06-01)
高校学成、引进人才科研启动计划项目(XYB2014-03)
研究生创新项目(YJSCX2018-Y09)。
关键词
玉米
钙肥
干物质积累
产量
品质
Maize
Calcium fertilizer
Dry matter accumulation
Yield
Quality