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我场4～6月上旬≥0℃的积温为725.7℃,占全年积温的24.6%;日照为517.9小时,降水量为91.2毫米,分别为全生育期(4～9月份)的40%和19.6%。以上条件可以满足速
In the field from April to June, the accumulated temperature ≥0 ℃ was 725.7 ℃, accounting for 24.6% of the accumulated temperature in the whole year. The sunshine duration was 517.9 hours and the precipitation was 91.2mm, which was 40% of the whole growth period (April to September) 19.6%. The above conditions can meet the speed