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改良式地膜覆盖栽培,即地膜沟栽蔬菜、瓜类,是地膜技术应用的新发展,具有防霜、防风、增温、保温等良好效应,可使果菜类及瓜类霜前早植,早熟丰产。是一项高效低耗的栽培技术。 1983年初由大连市农科所引进此项新技术,并在小雁滩设点试验,结果报告如下: 一、试验情况: 试验地灰茬土,系菜园土壤,熟化度较高。pH8.13,有机质2.47％,水解氮101PPm,速效磷36ppm,速效钾157ppm。前茬莲花菜。选用早熟品种“甘早黄”,定植时苗龄66天,苗高15—20厘米。
Improved film mulching cultivation, that is, film mulching vegetables, melons, is the new development of the application of plastic film technology, with the anti-frost, wind, warming, insulation and other good effects, can fruits and vegetables and melon frost premature, precocious High yield. Is a high-efficient low-cost cultivation techniques. In early 1983, this new technology was introduced by Dalian Agricultural Science Institute and set up a trial in Xiaoyantan. The results are reported as follows: I. Test situation: The soil of test-place soil is the soil of the garden and has a high degree of ripening. pH8.13, organic matter 2.47%, hydrolyzed nitrogen 101PPm, available phosphorus 36ppm, available potassium 157ppm. Before the crop of lotus. Selection of early varieties of “Gan early yellow”, planting seedling age of 66 days, 15-20 cm high seedling.