CAJ | 학술논문

以2009年建立的肥料定位试验为研究平台,于2013年进行了不同施肥处理对夏玉米产量及活性氧代谢影响的研究.结果表明,氮磷钾均衡施肥对夏玉米籽粒产量有显著的增产作用,产量达到9299.85 kg/hm2, NPK处理的穗粒数和千粒重最高, NP处理的穗长、穗重与NPK处理没有显著差异；氮能有效地提高玉米穗位叶叶绿素含量和籽粒的灌浆速率；氮对玉米穗位叶过氧化物酶活性的影响最大,氮钾配施能够有效地提高玉米穗位叶超氧化物歧化酶活性,增加穗位叶可溶性蛋白质含量,降低穗位叶丙二醛含量.合理配施氮钾能够有效地提高玉米穗位叶光合效率,延缓叶片衰老,提高玉米籽粒产量.
이2009년건립적비료정위시험위연구평태,우2013년진행료불동시비처리대하옥미산량급활성양대사영향적연구.결과표명,담린갑균형시비대하옥미자립산량유현저적증산작용,산량체도9299.85 kg/hm2, NPK처리적수립수화천립중최고, NP처리적수장、수중여NPK처리몰유현저차이；담능유효지제고옥미수위협협록소함량화자립적관장속솔；담대옥미수위협과양화물매활성적영향최대,담갑배시능구유효지제고옥미수위협초양화물기화매활성,증가수위협가용성단백질함량,강저수위협병이철함량.합리배시담갑능구유효지제고옥미수위협광합효솔,연완협편쇠로,제고옥미자립산량.
Long-term field experiment was carried out from 2009 to 2013 to study the effect of different fertilization treatments on yield and active oxygen metabolism of summer maize. The results showed that, in NPK treatment the yield of summer maize significantly increased, which was up to 9 299. 85 kg/hm2 and grains per spike and 1 000 grain weight were the highest. The spike length and spike weight of NP treatment had no significant difference with those of NPK treatment. Nitrogen effectively improved the chlorophyll content of spike leaf and grain filling rate and it had the most influence on the activity of peroxidase of maize leaves located near the ear. N and K fertilizer effectively increased the superoxide dismutase activity and soluble protein content of maize leaves located near the ear, and decreased their content of malondialdehyde. Therefore, the rational combina-tion of N and K could effectively improve the efficiency of photosynthesis, delay leaf senescence and increase the grain yield of maize.