叶面喷施5-氨基乙酰丙酸对不同密度春玉米生长特性和产量的影响
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唐会会,许艳丽,王庆燕,马正波,李光彦,董会,董志强
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Effects of Foliar Spraying 5-Aminolevulinic Acid on Spring Maize Growth and Yield under Different Planting Densities
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Huihui Tang,Yanli Xu,Qingyan Wang,Zhengbo Ma,Guangyan Li,Hui Dong,Zhiqiang Dong
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表2 ALA对不同密度春玉米SPAD值的影响（2016-2017年）
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Table 2 Effects of ALA on maize ear leaf SPAD value of three planting densities in 2016 and 2017
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| 年份 | 处理
Treatment | 生育时期Growth stage | | | V12 | VT | VT+20 | VT+40 | | 2016 | CK4.5 | 59.4±1.2 | 62.4±2.5 | 63.5±2.2 | 61.8±2.4 | | TR4.5 | 60.2±0.6 | 62.5±0.4 | 64.0±2.5 | 63.3±1.3 | | CK7.5 | 58.4±0.6 | 61.3±2.2 | 63.0±2.3 | 58.9±3.7 | | TR7.5 | 59.8±0.8 | 61.7±0.8 | 60.3±1.2 | 58.4±1.9 | | CK10.5 | 57.0±0.9 | 54.9±1.3 | 61.3±0.6 | 54.4±3.0 | | TR10.5 | 60.5±0.5 | 59.6±1.1 | 59.4±1.5 | 55.8±3.7 | | 2017 | CK4.5 | 58.2±4.2 | 63.5±2.4 | 67.4±3.4 | 60.9±1.8 | | TR4.5 | 62.5±1.6 | 59.9±3.3 | 65.0±3.7 | 59.8±2.5 | | CK7.5 | 54.4±3.6 | 60.4±1.5 | 61.6±4.5 | 57.1±5.9 | | TR7.5 | 54.6±5.0 | 56.4±5.1 | 60.6±1.7 | 60.7±2.7 | | CK10.5 | 51.2±4.5 | 53.0±3.3 | 55.7±3.8 | 49.2±3.7 | | TR10.5 | 52.0±5.7 | 57.1±3.5 | 56.9±3.8 | 52.0±2.5 |
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