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机构地区:[1]宁夏气象防灾减灾重点实验室,宁夏银川750002 [2]宁夏西吉县气象局,宁夏固原756200 [3]宁夏西吉县农业技术推广中心,宁夏西吉756200
出 处:《安徽农业科学》2012年第32期15808-15811,共4页Journal of Anhui Agricultural Sciences
基 金:宁夏气象局2011年气象科技项目"西芹分期播种试验"
摘 要:应用宁夏西吉县国家基本站1981~2010年气候资料,对葫芦河流域3个区域自动气象站近年作物生长期气象资料进行回归分析后,对西芹产业带气候条件用SPSS进行分层聚类分析。结果表明,葫芦河流域西芹产业带划分为2个种植区:偏南部兴隆-硝河暖热多雨早熟区、偏北部吉强-新营温冷少雨晚熟区,4个亚区:兴隆暖热早产、硝河暖温偏早产、吉强冷温中产、新营冷凉晚产;每个种植亚区按气候层次结合生育期观测再聚类划分为积温播种期、低温出苗期、外叶适温生长期、心叶高温生长期、适时收获期5个不同阶段。这些工作,对市场经济条件下西芹覆膜压沙种植采取不同播期、水肥方案、病虫害防治、上市时间等具有参考价值。By using climate data in national station in Xiji County,Ningxia Province during 1981-2020,a regression analysis was carried out on weather data in crop growth season in three automatic weather station in Huluhe Basin.The results showed that celery belts of Hulu valley was divided into two groups: early-maturing region of south Xinglong-Xiaohe where is warm and rainy,serotinous region of north Jiqiang-Xinying where is warm and cold and rainless.Four subregions: Xinglong,Xiaohe,Jiqiang,Xinying.Each subregion was divided into five regions according to climate layer and observation in growth season: temperature accumulating planting period,low temperature seedling period,suitable temperature for external leaf growth stage,high-temperature for celery mulching-sanded plantation in different sowing time,water and fertilizer scheme,insect pest prevention,time to market sales.
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