乙烯利催熟西瓜用量乙烯利对西瓜果实有较好的催熟作用，能使西瓜提早上市，可提高经济效益３０—５０％，但是要严格掌握用量。１．在西瓜谢花后２０—２５天可用３００ｐｐｍ溶液喷于果面。七成熟的瓜可用５００—１０００ｐｐｍ溶液浸泡３—５分钟。２．在田间喷施乙烯... Ethephon ethephon watermelon dosage Ethephon has better ripening effect on watermelon fruit, make watermelon market early, can improve economic efficiency 30-50%, but to strictly grasp the amount. 1. 20-25 days after the watermelon thank flowers 300ppm solution sprayed on the fruit surface. Seven ripe melon available 500-1000ppm solution soak 3-5 minutes. 2. Spraying ethylene in the field ...