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以先玉335为试验材料,在大田条件下设置4种耕作方式处理,研究耕作方式对春玉米产量及各器官磷含量、磷素吸收、积累和利用的影响。结果表明,苗带紧、行间松型耕作方式下玉米的产量最高,苗带松、行间紧型耕作方式次之,苗带、行间全松型耕作方式产量最低。开花期,苗带紧、行间松型耕作方式下根系磷含量和磷积累量均最高;成熟期,苗带紧、行间松型耕作方式下根系、茎秆和子粒的磷含量及磷积累量显著高于其他处理。苗带紧、行间松型耕作方式下玉米的磷素吸收效率、磷素偏生产力、磷素贡献率和磷素转移效率显著高于其他处理,磷素干物质生产效率和磷素子粒生产效率显著低于苗带、行间全松和苗带、行间全紧处理。相关分析表明,粒重与磷素子粒生产效率、磷素吸收效率、整株干物重、磷素收获指数显著正相关,与磷素偏生产力、磷贡献率极显著正相关。
Taking Xianxu 335 as test material, four tillage treatments were set up under field conditions to study the effects of tillage patterns on the yield, phosphorus content, phosphorus uptake and accumulation of spring maize. The results showed that the yield of maize was the highest with seedling belt tightness and loose pine tillage mode. The yield of maize seedlings was the second, followed by tight tillage cultivation. The phosphorus content and phosphorus accumulation of root system were the highest in flowering stage, seedling banding tightness and interplanting loose tillage. The phosphorus content and phosphorus accumulation in roots, stems and kernels in mature, The amount was significantly higher than other treatments. Seedlings with tight belt, loose pine tillage mode maize phosphorus absorption efficiency, partial phosphorus productivity, phosphorus contribution rate and phosphorus transfer efficiency was significantly higher than other treatments, phosphorus dry matter production efficiency and phosphorus production efficiency Significantly lower than the seedlings, the line between the whole pine and seedlings, all between the tight handling. Correlation analysis showed that grain weight had a significant positive correlation with phosphorus production efficiency, phosphorus absorption efficiency, whole plant dry matter weight and phosphorus harvest index, and had significant positive correlation with partial yield of phosphorus and contribution rate of phosphorus.