减源对不同密度春玉米开花后干物质及 氮、磷、钾积累转运的影响
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曹玉军,吴杨,刘志铭,崔红,吕艳杰,姚凡云,魏雯雯,王永军
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Effects of Sources Reduction on Accumulation and Remobilization of Dry Matter and Nitrogen, Phosphors and Potassium of Spring Maize Under Different Densities After Flowering
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YuJun CAO,Yang WU,ZhiMing LIU,Hong CUI,YanJie LÜ,FanYun YAO,WenWen WEI,YongJun WANG
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表5 不同处理籽粒氮磷钾积累及营养器官养分转运贡献率
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Table 5 Effects of source reduction on N, P and K accumulation and the contribution of remobilized N, P and K to grain under different treatments
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年份 Year | 种植密度 Planting density (×104 plants/hm2) | 处理 Treatment | 成熟期籽粒 氮积累 Grain N at physiological maturity (g/plant) | 营养器官 氮转运贡献 Proportion of remobilize N in grain from vegetative organs | 成熟期籽粒 磷积累 Grain P at physiological maturity (g/plant) | 营养器官 磷转运贡献 Proportion of remobilize P in grain from vegetative organs | 成熟期籽粒 钾积累 Grain K at physiological maturity (g/plant) | 营养器官钾 转运贡献率 Proportion of remobilize K in grain from vegetative organs | 2014
| 6.0 | CK | 2.13 | 41.12 | 0.38 | 43.45 | 0.69 | 55.40 | T1 | 1.56 | 59.11 | 0.35 | 47.24 | 0.57 | 60.74 | T2 | 1.79 | 54.89 | 0.36 | 43.61 | 0.60 | 58.63 | T3 | 1.85 | 50.60 | 0.36 | 43.47 | 0.64 | 60.41 | 9.0 | CK | 1.72 | 39.72 | 0.32 | 33.02 | 0.51 | 60.30 | T1 | 1.41 | 52.60 | 0.25 | 44.99 | 0.41 | 75.14 | T2 | 1.61 | 48.92 | 0.28 | 38.74 | 0.43 | 73.20 | T3 | 1.96 | 35.03 | 0.34 | 31.38 | 0.53 | 59.16 | 2015 | 6.0 | CK | 2.15 | 42.64 | 0.35 | 46.56 | 0.67 | 54.30 | T1 | 1.58 | 61.20 | 0.29 | 54.72 | 0.49 | 73.12 | T2 | 1.87 | 52.84 | 0.33 | 48.54 | 0.54 | 63.18 | T3 | 1.92 | 48.77 | 0.34 | 49.24 | 0.57 | 59.92 | 9.0 | CK | 1.72 | 45.75 | 0.32 | 31.41 | 0.49 | 62.91 | T1 | 1.35 | 57.39 | 0.24 | 41.51 | 0.39 | 70.20 | T2 | 1.50 | 53.83 | 0.26 | 37.84 | 0.41 | 73.31 | T3 | 1.92 | 40.32 | 0.34 | 29.58 | 0.52 | 58.88 | ANOVA | 年份 Year | ns | ns | ns | ns | ns | ns | 密度 Density | ** | ** | * | ** | ** | * | 处理 Treatment | ** | ** | * | ** | ** | ** |
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