一、春施基肥 凡未进行秋施基肥的地区,可在3月中下旬结合出土施入防寒沟,沟浅时先清沟至60cm深施入。亩施量;自积农家肥4000～5000公斤;或圈肥2500～3000公斤,并拌入75～100公斤过磷酸钙。肥后灌一次大水(渗透层达60cm),既保证了冬春季干旱缺水的需要,同时有利于养分的吸收、运输、转化。 First, Chun Shi base fat Where did not apply basal fertilizer in autumn, in late March combined with unearthed into the cold ditch, shallow ditch when the first Qing ditch to 60cm deep into. Mushi amount; since the plot farmers 4000 to 5000 kg; or lap 2500 to 3000 kg, and mix in 75 to 100 kg of superphosphate. After a fat flood irrigation (infiltration layer of up to 60cm), both to ensure the winter drought in spring and drought needs, while conducive to nutrient absorption, transport, conversion.