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九、木瓜对环境条件要求温度:0℃以上,如时间不长,对木瓜影响不大,-4℃的低温木瓜会被冻死。生长最适温25-32℃,月均温达18℃时,新根生长,35℃以上高温干旱,多开雄型两性花,造成间断果现象。水分:木瓜叶片大,花果重叠,需大量水分,但又怕积水,积水超过24小时以上,易烂根。春雨过多,易落花落果。秋冬干旱、缺肥,又易落叶落果。土壤:最适PH值6-6.5,砂壤土最好,壤土次之,粘性重的土较差。排水不良的土壤易诱发病虫害,产量低。十、园地选择1、园地不受工业“三废”污染,灌溉水无污染2、新园地离旧木瓜园1公里以上,不能连作,要隔3年以上。
Nine, papaya on the environmental conditions required temperature: 0 ℃ above, such as time is not long, little effect on papaya, -4 ℃ low temperature papaya will be frozen to death. Growth optimum temperature 25-32 ℃, the average monthly temperature of 18 ℃, the new root growth, high temperature and drought above 35 ℃, more open male bisexual flowers, resulting in discontinuous fruit phenomenon. Moisture: Papaya leaves large, flower and fruit overlap, requiring a lot of water, but afraid of water, water more than 24 hours, easy to rot roots. Spring is too much, easy to fall and fall fruit. Autumn and winter drought, lack of fertilizer, but also easy to fall leaves. Soil: The optimum PH value of 6-6.5, sandy loam the best, followed by loam, sticky heavy soil is poor. Poor drainage of soil easy to induce pests and diseases, low yield. Ten, the choice of garden 1, the garden is not affected by the industry “three wastes ” pollution, pollution of irrigation water 2, the new garden from the old Papaya Park more than 1 km, can not even work, to be separated by 3 years.