临沂市地处鲁东南沂蒙山前平原,常年种植小麦95万亩左右.其中有40万亩麦田属黑粘土。这类土壤.结构性差.质地粘重,宜耕期短,过去往往由于不易耕翻而贻误播期。近几年秋种期间又多阴雨.给适时播种小麦带来很多困难。对此,当地群众根据稻茬麦播种技术,先后又在大豆、玉米、红麻等旱作物茬口上实行了免耕播种小麦,经几年试验示范推广,取得 Linyi City is located in Shandong Yimeng piedmont plains, perennial planting of about 950000 acres of wheat, of which 400000 acres of wheat is a black clay. This kind of soil is poor in structure, sticky in texture, short in term of tillage, but it is often not as easy to turn over as it is to delay sowing. In recent years, autumn rain more rainy season to sow the wheat to bring a lot of difficulties. In response, the local people based on rice stubble planting techniques, successively in soybean, corn, kenaf and other dry crop stubble practiced no-till sowing wheat, after several years of experimental demonstration and promotion, obtained