论文部分内容阅读
作物光温生产潜力指数的准确性直接影响着农用地质量分等成果的真实性。使用逐级订正模型先后从播种日期、插秧日期、育秧期间水稻所处气温、气候数据4个方面对富锦市水稻光温生产潜力指数进行修正,并对修正结果进行分析,以期为后续的农用地分等工作提供参考依据。研究结果表明:原插秧日期并不符合水稻生长的客观规律,接下来的农用地分等工作应该对水稻的播种日期、插秧日期进行修正更新;温室育秧技术通过提前水稻播种日期、插秧日期并增加育秧期间水稻所需积温,从而提高水稻光温生产潜力指数;温室育秧技术和气候变化均使水稻光温生产潜力指数增加,但温室育秧技术对富锦市水稻光温生产潜力指数影响程度较大。
The accuracy of the potential index of crop photothermal production directly affects the authenticity of the results of agricultural land quality grading. Using step-by-step correction model, the potential index of light and temperature production of rice in Fujin city was revised from four aspects: planting date, planting date, temperature and climate data of rice during seedling growing period, and then the correction results were analyzed, Grading work to provide a reference. The results showed that: the date of original planting did not meet the objective law of rice growth, the next classification of agricultural land should be sowing dates of rice, planting and planting date should be revised and updated; greenhouse seedling technology through advance sowing date, planting date and increase The accumulated temperature required for rice during seedling raising will increase the potential index of light and temperature production potential of rice. Both the greenhouse seedling raising technology and climate change will increase the light and temperature production potential index of rice, but the effect of greenhouse seedling transplanting technology has a greater influence on the potential productivity of light and temperature of rice in Fujin city .