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一、整地施肥。菠菜田应选择肥沃、保温保水性好的地块。耕翻前667平方米施优质农家肥5-6立方米,复合肥45千克,或磷酸二铵20千克、硫酸钾30千克、过磷酸钙20千克。整地时各畦间要留足间距,以便扎设御寒风障。二、选择良种。菠菜可分为根茬菠菜、埋头菠菜、春菠菜、夏菠菜和秋菠菜5种类型。种植冬菠菜应选用荷兰菠菜K4、菠杂10号、菠杂9号、刺籽菠菜或尖叶菠菜等耐寒性强的品种。三、适时播种。冬季种植的菠菜在植株达到5-6片叶时,才有较强的耐寒力。因此,在秋季日平均气温降到17-19℃时,最适合播种。
First, soil preparation and fertilization. Spinach field should choose fertile, good thermal insulation water plots. Farrowing 667 square meters before the application of high quality farmyard 5-6 cubic meters, 45 kg of compound fertilizer, or 20 kg of diammonium phosphate, 30 kg of potassium sulfate, 20 kg of superphosphate. During the preparation of the land, the space between the houses should be left for the purpose of setting up a cold wind barrier. Second, choose a good seed. Spinach can be divided into the stubble spinach, buried spinach, spring spinach, summer spinach and autumn spinach 5 types. Winter spinach should be used for planting Dutch spinach K4, spinach No. 10, spinach No. 9, spinach spinach or spinach and other cold-resistant varieties. Third, timely sowing. Winter planting spinach plants reach 5-6 leaves, have a strong cold hardiness. Therefore, it is most suitable for sowing when the average daily temperature falls to 17-19 ° C in autumn.