磷肥运筹和试验品种对寒地粳稻干物质积累与转运的影响

发布时间：2018-08-09 11:57

【摘要】：试验采用随机区组设计的方法,研究了磷肥运筹和试验品种对寒地粳稻干物质累积与运转的影响。结果表明,不同磷肥运筹和试验品种在各生育时期干物质累积量均存在显著的互作效应。利用Logistic方程能够准确地拟合不同磷肥运筹下干物质积累的动态变化,试验品种对干物质增长速率峰值的影响高于磷肥运筹,磷肥运筹对干物质累积快增期影响占主导作用。相关分析表明,分蘖成穗率、高效叶面积指数、谷草比均与产量成显著正相关。抽穗后干物质累积量、茎秆物质转化率与产量呈显著的正相关。干物质累积量、干物质累积速率曲线和干物质累积曲线的分析表明,品种最佳的磷肥运筹与基因型密切相关,垦稻26、垦系169、垦稻24对应的最佳磷肥运筹方式分别为A1(磷酸二铵120 kg/hm~2100%基施)、A1和A2(磷酸二铵120 kg/hm~260%基施,40%调节肥施)。
[Abstract]:The effects of phosphorus fertilizer application and experimental varieties on dry matter accumulation and transportation of japonica rice in cold region were studied by random block design. The results showed that there was a significant interaction between the dry matter accumulation of different phosphate fertilizer and the tested varieties at different growth stages. Using Logistic equation, the dynamic change of dry matter accumulation under different phosphorus fertilizer operation can be accurately fitted. The effect of the test variety on the peak value of dry matter growth rate is higher than that on phosphorus fertilizer operation, and phosphorus fertilizer operation plays a dominant role in the rapid dry matter accumulation period. Correlation analysis showed that there was a significant positive correlation between tiller panicle percentage, high efficient leaf area index and ratio of grain to grass. There was a significant positive correlation between dry matter accumulation after heading and yield. The analysis of dry matter accumulation, dry matter accumulation rate curve and dry matter accumulation curve showed that the best phosphorus fertilizer was closely related to genotype. The optimum application of phosphorus fertilizer for cultivated rice 26, reclamation line 169 and cultivated rice 24 was A1 (120 kg / hmcu 2100% basal application) and A2 (120 kg / hm ~ (-1) N ~ (2) P _ (2) O _ (2) 路h ~ (2) 路h ~ (2) ~ (2) N ~ (2) 2 (120 kg / h ~ (-1) 路hm ~ (2) of ammonium phosphate and 40% basal fertilizer.
【作者单位】：黑龙江省农垦科学院水稻研究所;
【基金】：公益性行业(农业)科研专项经费项目(201303102) 国家科技支撑计划(2013BAD07B01-03)
【分类号】：S511.22;S143.2

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