充分利用热量资源适时早播夺高产

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摘要 通过对双鸭山市热量资源的分析，分析了近几十年气候变暖的趋势，提出合理利用热量资源，适时早播夺积温的建议；并根据对自然物候“杨树萌芽”与大田播期相关的分析，找出用杨树萌芽始期适时早播大田作物的指标，建立了预报方程，计算出可靠、客观的播种时间，以充分利用当地的温度资源，提高单位面积产量。

关键词 热量资源；早播；适播时间

中图分类号：S161.2+1 文献标识码：B 文章编号：2095–3305（2023）05–0055-03

Making Full use of Heat Resources and Sow Early in Time to Achieve High Yield

Liu Tian-yu et al（Jiamusi Meteorological Bureau， Jiamusi， Heilongjiang 154004）

Abstract Based on the analysis of heat resources in Shuangyashan City， the trend of climate warming in recent decades was analyzed， and suggestions were put forward to make rational use of heat resources， and timely and early sowing to capture accumulated temperature; According to the analysis of the correlation between the natural phenology “poplar sprout” and the field sowing date， the index of early sowing of field crops at the beginning of poplar sprout was found， the prediction equation was established， and the reliable and objective sowing time was calculated， so as to make full use of the local temperature resources and improve the yield per unit area.

Key words Heat resources; Early sowing; Suitable sowing time

双鸭山市位于黑龙江省东北部，处于完达山脉北麓的安邦河畔，属中温带季风气候，下属4县4区，分别为集贤、友谊、宝清、饶河县，尖山、岭东、四方台、宝山区。（剩余5671字）