小麦、西瓜、红薯套种,小麦亩产454公斤,收入770元,西瓜亩收入1100元,红薯亩收入1650元,每亩总收入3520元。其技术要点是: 一、整地施肥。秋作物收后,亩施优质农家肥3.5方,碳铵、过磷酸钙各50公斤,作底肥一次施入,搂平划线,等待播种。 二、模式组合。183厘米一带,播种5行小麦,行距21.6厘米,占地宽86.4厘米,空档96.6厘米。翌年春在空档内亩施二铵、碳铵各50公斤,深 Wheat, watermelon, sweet potato intercropping, wheat yield 454 kilograms, income 770 yuan, watermelon mu income 1100 yuan, sweet potato mu income 1650 yuan, gross income 3520 yuan per mu. The technical points are: First, soil preparation and fertilization. Harvest crops after autumn, Mushi high-quality farmyard 3.5, ammonium bicarbonate, superphosphate 50 kg each, as a base applied once, hug flat line, waiting for sowing. Second, the mode combination. 183 cm, sown 5 rows of wheat, spacing 21.6 cm, covering an area of ​​86.4 cm wide, 96.6 cm gap. The following spring in mid-range Mushi Shi diammonium, ammonium bicarbonate 50 kg, deep