设施即保护地油桃座果后到果实采收前这一时期为果实发育期，是保护地油桃形成生物产量和经济产量的关键时期。这一时期，地温、气温逐渐回升，温室内外环境差异越来越小，油桃根系、叶片进入功能期，果实发育膨大，新梢迅速生长，树体养分多极竞争，油桃树体及果实的生长对环 The facilities that protect the Nectarine fruit collection to the fruit before harvest during this period is the fruit development period, the protection of nectarine biological formation and economic output of the key period. During this period, the ground temperature and temperature gradually rose, the environmental differences between the interior and exterior of the greenhouse became smaller and smaller. The roots and leaves of nectarine entered the functional stage, the fruit development expanded, the shoots grew rapidly, the tree nutrient multipolar competition, the peach tree and the fruit The growth of the ring