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影响夏播小麦产量高低的是温度生态因子,不是土壤肥力因子。海拔每升高100公尺,日均温降低0.94℃,产量每亩提高24.4—26.5斤,千粒重增加0.92克,植株高度增长3.5厘米。通过方差分析初步确定,夏播小麦适宜的海拔高度在1200公尺以上;海拔1200公尺适宜播期在6月中下旬,适宜品种为中7606和涿城一号;海拔1400公尺适宜播期在6月中旬,适宜品种为中7606和公17;海拔1600公尺适宜播期在6月上中旬,适宜品种依次为公17、涿城一号、中7606;海拔1800公尺适宜播期在6月上旬或更早一些,适宜品种仍以中7606居首。最高产量出现在海拔1600公尺,品种公17每亩843斤,涿城一号每亩801斤,中7606每亩720斤。
Affect the level of summer sowing wheat yield is a temperature ecological factor, not a factor of soil fertility. Each elevation of 100 meters above sea level, the average daily temperature decreased 0.94 ℃, yield increased 24.4-26.5 kg per mu, 1000 grain weight increased 0.92 grams, the plant height increased by 3.5 cm. Through ANOVA, the suitable altitude of summer sowing wheat was more than 1,200 meters, the suitable sowing date at 1,200 meters above sea level was in mid-to-late June, the suitable varieties were 7606 and No. 1 Tancheng, and the elevation of 1,400 meters was suitable for sowing In mid-June, the suitable varieties for the 7606 and 17; elevation of 1600 meters suitable for sowing in mid-June in June, the appropriate varieties were male 17, Tancheng 1, 7606; 1800 meters above sea level suitable for sowing In early June or earlier, suitable varieties are still among 7606 in the first. The highest yield appears at an altitude of 1600 meters, the variety of public 84 84 kg per mu, Tancheng 801 kg per mu, 760 kg per mu in 7606.