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一、种子选购1.质量指标采种时间为9月下旬至10上旬,种子采下后,经过10～15天沤制,搓去外皮,再淘洗干净,才能出售。出售的种子表面应洁白,不得有霉污和破损,否则种子会霉烂,失去发芽能力。2.数量指标育苗用种子一般每千克560～640粒为理想种子,种子破损率不得超过1%,漂浮种子不得超过2%。每667米2播种量为50千克,每667米2产苗量为2.0～2.2万株。
First, the seed purchase 1 quality indicators Seed time for the late September to early 10, after the seed mining, after 10 to 15 days system, rub the skin, then wash clean, to sell. Seeds should be sold on the surface of white, not moldy and damaged, otherwise the seeds will rotten, lost the ability to germinate. 2. Quantitative indicators Raising seeds generally 560 to 640 grains per kilogram for the ideal seed, seed breakage rate shall not exceed 1%, floating seeds shall not exceed 2%. Per 667 m 2 sowing capacity of 50 kg per 667 m 2 seedling production of 2.0 to 22,000.