怎样防止瓜果类蔬菜发生裂果和日烧夏季一些瓜果类蔬菜常常由于一些客观条件的影响，产生裂果和日烧现象（因受太阳直接照射产生的烧损）。据调查，一般年份发生率通常在４０％左右，严重时可达８０％以上。一旦发生裂果和日烧，不仅损伤果实的外观，而且还会降低品质，有... How to prevent fruits and vegetables from cracking fruit and burning the sun Some melons and vegetables often due to some objective conditions, resulting in cracking and burning phenomenon (due to direct solar radiation burning). According to the survey, the incidence of the general year is usually about 40%, up to 80% in severe cases. In the event of cracking and burning, not only damage the appearance of the fruit, but also reduce the quality, there is ...