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加强田间水肥管理正当时

2017-08-08 10:13:55   中国青年网

记者从省气候中心获悉,6月下旬以来持续的“低温阴雨寡照”气候对我省农业生产影响较大,预计8月降水滇东和滇南边缘地区正常略多,其余大部地区正常略少。在这种天气影响下,如何减少天气对秋粮生产的影响,促进增产,气象专家建议,当前应加强田间水肥管理并注意作物病害的防治。

据监测,7月我省平均气温21.5℃,较历年同期偏低0.3℃,其中昭通中北部、德宏、保山、临沧大部为持平至略偏高,其余地区为持平略偏低;月平均累积雨量275毫米,较历年同期偏多25%,其中滇中、滇西北南部、滇西南北部、滇东北中南部、滇东南北部及东部等偏多2成以上;月累积日照时数107小时,较历年同期偏少11%,大部地区均较历年同期偏少,其中文山北部、曲靖南部、玉溪局部等偏少3成以上,日照偏多的区域主要出现在昭通中北部及我省西部边缘地区。

气象专家分析,6月下旬以来我省持续的“低温阴雨寡照”气候不利于粮经作物光合积累,导致作物生育期偏晚、长势较差。预计8月降水滇东和滇南边缘地区正常略多,其余大部地区正常略少,气温全省大部地区正常略高。8月我省水稻大部为抽穗开花~灌浆成熟期,玉米为开花吐丝~乳熟成熟期,烤烟为成熟采收期,因此,要加强田间水肥管理,促进秋粮增产。同时,由于我省前期长时间持续“低温阴雨寡照”,作物抗病抗逆能力弱,因此要注意作物病害的防治。

本报记者 陈云芬

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