Abstract: Taking PZH-15 which is high quality in Guizhou as the material, studied and analyzed the effects of differentcultivation ways such as no-ploughed, plough and covered with straws, plough and covered with film on physiologicalcharacteristic and yield of maize.The results showed:Under the same fertilizer consumption, covered with straw and coveredwith film can increase the chlorophyll content and total leer area duration of the maize, can improve leaf nitrate reeducatesactivity, Photosynthesis and roots vigor, and the nitrate reeducates activity, the chlorophyll content and the roots vigorpresent positive correlation with yield. Meanwhile, average dry matter accumulation of straw-covered increased 7.1%than this of no-ploughed, yield increased 15.3%. The average dry matter accumulation of film-covered increased 20.1%than which of no-ploughed and 12.1% than which of plough and covered with straws. And yield increased 26.8% and10??1%, notable differences.

Key words: Cultivation way, Karsts mountainous areas, Maize, Physiological characteristic, Yield

CLC Number: 

• S513