钾肥袋控缓释对桃产量、品质及土壤氯离子含量的影响
张亚飞,彭福田,肖元松,罗静静,杜安齐

Effects of Potassium Fertilizers Being Bag-Controlled Released on Fruit Yield and Quality of Peach Trees and Soil Chloride Content
ZHANG YaFei,PENG FuTian,XIAO YuanSong,LUO JingJing,DU AnQi
表2 2017和2018年不同处理各时期的SPAD值
Table 2 SPAD values of different treatments at different stages in 2017 and 2018
处理
Treatment
2017 2018
S1 S2 S3 S4 S1 S2 S3 S4
对照Control 18.17d 38.63d 40.70d 41.10d 17.23c 37.47c 38.70d 40.03d
PC 0 20.00c 42.47b 45.73ab 48.30ab 21.03ab 42.33b 45.43b 48.03a
PC 30 20.23c 43.47a 46.47a 48.70a 22.00a 43.67a 46.40a 48.17a
PC 60 20.83b 43.70a 45.20b 47.50b 22.33a 43.77a 44.87b 46.80b
PC 100 21.97a 41.40c 42.77c 45.80c 21.77b 41.83b 42.63c 43.20c