施石灰和秸秆还田对双季稻田土壤钾素表观平衡的互作效应
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刘磊, 廖萍, 邵华, 刘劲松, 杨星莲, 王静, 王海媛, 张俊, 曾勇军, 黄山
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Interactive effects of liming and straw return on apparent soil potassium balance in a double rice cropping system
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LIU Lei, LIAO Ping, SHAO Hua, LIU Jin-Song, YANG Xing-Lian, WANG Jing, WANG Hai-Yuan, ZHANG Jun, ZENG Yong-Jun, HUANG Shan
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表1 施石灰(L)和秸秆还田(RS)对双季稻生物量和钾素吸收的影响(F值)
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Table 1 Effects of liming (L) and straw return (RS) on biomass and K uptake in the double rice cropping system (F-value)
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年份 Year | 变异来源 Source of variations | 生物量 Biomass | 钾素吸收 K uptake | 早稻 Early rice | 晚稻 Late rice | 早稻 Early rice | 晚稻 Late rice | 2015 | 石灰Liming (L) | 8.42* | 20.36** | 0.68 | 1.38 | | 秸秆还田Straw return (RS) | 11.92* | 18.49** | 33.23** | 61.16** | | 石灰×秸秆还田 L×RS | 0.87 | 11.01* | 5.10 | 1.36 | 2016 | 石灰Liming (L) | 6.60* | 24.93** | 0.05 | 13.50* | | 秸秆还田Straw return (RS) | 23.45** | 11.51* | 64.70** | 224.24** | | 石灰×秸秆还田 L×RS | 1.26 | 11.31* | 3.77 | 19.49* | 2017 | 石灰Liming (L) | 24.41** | 2.60 | 1.72 | 0.00 | | 秸秆还田Straw return (RS) | 79.05** | 0.09 | 265.32** | 13.75* | | 石灰×秸秆还田 L×RS | 0.45 | 1.26 | 3.47 | 0.82 | 2018 | 石灰Liming (L) | 0.25 | 1.56 | 2.10 | 0.32 | | 秸秆还田Straw return (RS) | 153.99** | 7.06* | 190.98** | 19.89** | | 石灰×秸秆还田 L×RS | 0.00 | 0.47 | 1.23 | 0.37 |
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