沧州市从１９９７年开始引进推广机械覆膜穴播小麦新技术，现推广范围已涉及到１０个县（市），面积达８．９万亩（１亩＝６６７ｍ２，下同）。通过两年的试验推广，该项新技术在沧州市干旱及盐碱地上表现出极大的优越性。一、节水、保墒在旱地上实行小麦机械覆膜穴播，由于地 Cangzhou City, introduced from 1997 to promote new technology of mechanical filming wheat, now the scope of the promotion has been involved in 10 counties (cities), an area of ​​89,000 mu (1 mu = 667m2, the same below). After two years of experimental promotion, the new technology showed great superiority in drought and saline-alkali land in Cangzhou City. First, water-saving, moisture in the dry land on the implementation of wheat mechanical filming broadcast, due to the ground