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试验结果表明,晒种方法、播种期选择和土壤含水量是影响夏收菜用大豆秋繁出苗、成苗的三个主要因素。同时分析了夏收秋繁出苗障碍的生理原因,提出了提高秋繁出苗率的方法和主要技术指标:1.脱粒阴干,降低种子破裂率,保持种子16.7%~18.5%的含水量。2.适期播种,福州地区7月30日前后5d为播种危险期。3.先灌后播,田间持水量为55%~58%。
The results showed that basking method, sowing date selection and soil water content were the three main factors that affected the emergence and seedling emergence of summer harvest vegetables with soybean. At the same time, the physiological reasons of the emergence of summer seedlings were analyzed. The methods to improve the seedling emergence in autumn and the main technical indexes were put forward as follows: 1. Threshing dry, reduce the rate of seed rupture, to maintain the seed 16.7% ~ 18.5% of the water content. 2. Appropriate sowing, Fuzhou area before and after July 30 5d for the planting of dangerous period. 3. Sowing after the first irrigation, field capacity of 55% to 58%.