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为了广辟肥源,增加农作物产量,我们在油菜田里进行套种大荚箭舌豌豆试验。试验田设在盐城市郊区龙冈镇新冈村三组,代表苏北里下河地区水稻土,母质为湖相沉积物,土种是黑桃土,土壤有机质1.15％,全氮0.08％,速效氮65ppm,速效磷2.5ppm,因土壤板结,养分含量低,故在宽窄行油菜大行中套种宽幅大荚箭舌豌豆绿肥,每亩播种量8～10斤,磷肥40斤作基肥,翌年4月中下旬绿肥埋青作棉花基肥。试验处理分:宽窄行种植油菜3000株、4500株、6000株;等行距种植9000株与大窝油菜种植4500株。小区面积0.025亩,重复4次,油菜育苗移栽,品种为胜利油菜。
In order to broaden the source of fertilizer, increase crop yields, we interplanted in the canola field pod tongue pea test. The experimental field is located in the three groups of Xincang Village, Longgang Town, a suburb of Yancheng City. It represents paddy soil in the Lixiahe area of northern Jiangsu Province. The parent material is lacustrine sediment and the soil type is spadesol. The soil organic matter is 1.15% and total nitrogen is 0.08% Nitrogen 65ppm, Available phosphorus 2.5ppm, because of soil compaction, low nutrient content, so in the wide line Raffia Daoxing broad-leaved broad-leaved tongue pea green manure, seeding per acre 8 to 10 kg, 40 kg of phosphate fertilizer for the base fertilizer, the following year In mid to late April Greenbelt bred cotton as a base fertilizer. Test treatment points: wide and narrow rows planted rapeseed 3000, 4500, 6000; line spacing planted 9,000 and planting 4,100 large oat rapeseed. Area of 0.025 acres of plots, repeated 4 times, rapeseed transplanting, varieties of victory rape.