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榆树市青顶乡架树村农民李石磊,1996年栽植大葱0.03公顷,产葱2 382kg,,比上年自己的0.03公顷大葱增产1440kg。增产幅度高达60.5％,原因是他采用了一沟双行调角直栽的新方法。 李石磊过去栽葱和当地农民一样,沿用一沟单行坡栽的老方法,大葱不但产量低、叶子大,而且葱白短。在科学种菜培训班上,听了技术人员对大葱生育特点的分析,他认为有道理:目前,栽培的大葱多数不分蘖,线状须根,根系分布范围小,吸水、肥的能力弱,适于密植。经过反复琢磨,他对栽培技术做了改进,把过去的一沟单行坡栽改为一沟双行调角直栽,并相应地加强了田间管理。 李石磊根据大葱怕重茬的特点,选择5年没种过葱蒜的43条拢地,前茬是茄子、辣椒和黄瓜,南北向,垅距70cm。夏至前后开沟栽植,沟宽10cm,深20cm,把腐熟细碎的优质农肥施入沟内,用三齿丁耙
Li Shilei, a farmer in Yishu Qingde Township Doushue Village, planted 0.03 hectare green onions in 1996 and produced 2 382 kg of onions, an increase of 1440 kg from the previous 0.03 hectares of green onions. Yield increase of up to 60.5%, because he adopted a ditch double line angle transfer planted a new method. In the past, Li Shurie planted green onions and used the same method as that of local peasants. Following the old method of planting a ditch in a ditch, the green onions not only had low yield, large leaves but also short white onions. In scientific training courses, listening to technical personnel on the characteristics of green onions analysis, he believes it makes sense: At present, most of the cultivation of green onions without tillers, linear fibrous roots, the distribution of small roots, water, fertilizer weak capacity, suitable In close planting. After repeated study, he made improvements to the cultivation techniques, changing the ditch of a ditch in the past into a straight ditch with a single ditch and a double row, and correspondingly strengthened field management. According to the characteristics of scallion afraid of stubble, the selection of 5 years did not grow the onion scallop 43 in length, the former crop is eggplant, peppers and cucumbers, north-south, away from home 70cm. Before and after the summer solstice ditch planting, ditch width 10cm, depth 20cm, the finely decomposed fine quality fertilizer applied to the ditch, with three teeth Ding rake