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地膜1979年从日本引进,首先在北方进行试验,然后迅速在全国发展起来,先后在蔬菜、果树、食用菌、大豆、花生、甘薯、玉米、棉花等作物以及水稻育秧上使用,普遍反映季节提早、品质改善、产量增加。但乞今为止,未见过水稻大田方面应用地膜的报导,本试验针对这个问题进行探索性的试验。 一、试验经过及设计 试验田选择在第四纪红壤发育的丘陵山区稻田里,土壤肥力中等,前作绿肥,3/12日翻沃(翻沃时绿肥亩产5000斤),供试品种为杂交稻威优三五,3/20日施基肥,3/2日播种,直播每穴播4—5粒芽谷,密度3×8寸,以后每蔸定苗一株。移栽秧的秧田播种量每亩20斤,地膜平铺,5/8日移栽,移栽时用食指指破预先铺好的膜面将苗插稳,每蔸扦一粒谷的秧。试验设计共分六个处理:
Membrane imported from Japan in 1979, first in the northern trials, and then quickly developed in the country, has vegetables, fruit trees, mushrooms, soybeans, peanuts, sweet potatoes, corn, cotton and other crops and rice seedlings on the use of generally reflect the early season , Improve quality, increase production. But begging so far, have not seen the application of mulching film in rice fields reported, the test for this issue exploratory test. First, the experimental design and experimental field selection Quaternary red soil development in the hilly areas of paddy fields, soil fertility, before the green manure, 3/12 over Wo (turn fertilize green manure 5000 kg per mu), the test varieties of hybrid rice Weiyou 35, 3/20 basal fertilizer, 3/2 sowing, broadcast each hole 4-5 grain buds, density 3 × 8 inch, after each Ding Ding Miao a. Transplanting seedling planting seedlings per acre 20 kg, mulching, 5/8 transplanting, transplanting index finger broken pre-plated membrane surface will be inserted in the seedlings inserted, each 蔸 stem a grain of rice seedlings. Experimental design is divided into six treatment: