长期施肥处理对双季晚稻叶绿素荧光特征及籽粒产量的影响

侯红乾,林洪鑫,刘秀梅,冀建华,刘益仁,蓝贤瑾,吕真真,周卫军

Influence of long-term fertilizer application on chlorophyll fluorescence characteristics and grain yield of double cropping late rice

Hong-Qian HOU,Hong-Xin LIN,Xiu-Mei LIU,Jian-Hua JI,Yi-Ren LIU,Xian-Jin LAN,Zhen-Zhen LYU,Wei-Jun ZHOH

表1 晚稻移栽前0~20 cm土壤养分含量

Table 1 Soil nutrition contents of 0-20 cm layer in experiment field before late rice transplanting

处理 Treatment 有机质 Organic matter (g kg-1) 全氮 Total nitrogen (g kg-1) 碱解氮 Alkaline-hydrolytic N (mg kg-1) 有效磷 Available P (mg kg-1) 速效钾 Available K (mg kg-1) PK 24.57±1.06 b 1.41±0.06 d 143.33±21.09 b 36.90±3.46 b 135.23±28.11 a NPK 26.67±0.51 b 1.75±0.08 c 158.33±32.24 b 39.64±19.77 b 69.43±12.37 b 70F+30M 31.83±2.51 a 2.03±0.24 bc 184.52±2.82 ab 53.00±6.82 ab 61.90±10.60 b 50F+50M 32.79±0.81 a 2.19±0.09 ab 209.76±18.83 a 59.00±4.14 a 53.53±11.62 b 30F+70M 35.52±2.32 a 2.36±0.13 a 229.29±28.75 a 78.67±14.85 a 61.93±7.31 b