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1.良好的基础条件。土壤肥沃,疏松通气,0～10厘米土壤容重为每立方厘米1.27～1.45克,有机质含量1%以上,速效氮含量80毫克/千克以上,速效磷含量20毫克/千克以上,速效钾含量100毫克/千克以上,有效锌含量1毫克/千克左右。水源充足,灌排水方便。全生育期在110天,保证光热资源充足。.良好的基础条件。通气,0～10厘米土壤容重为每立
Good basic conditions Soil fertility, loose aeration, 0 to 10 cm soil bulk density of 1.27 to 1.45 grams per cubic centimeter, organic matter content of more than 1%, available nitrogen content 80 mg / kg or more, available phosphorus content of 20 mg / kg or more, available potassium 100 mg / Kg or more, effective zinc content of 1 mg / kg or so. Sufficient water, irrigation and drainage convenience. The whole growth period of 110 days, to ensure adequate light and heat resources. Good basic conditions. Ventilation, 0 ~ 10 cm soil bulk density for each stand