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以郑单958为试验材料,在已经定位研究28年留茬深松(DT)、免耕(NT)、翻耕(PT)和传统耕法(CT)的基础上,探讨不同耕作方式对玉米叶片光合特性的影响。结果表明,不同耕作方式下玉米叶片的净光合速率(Pn)处理间存在差异,DT处理比NT、PT和CT分别高8.78%、25.50%和48.13%,NT处理比PT和CT分别高15.38%和16.00%,PT处理比CT高0.54%,DT和NT处理分别与CT差异达显著水平(p<0.05),其他处理间差异不显著(2010年);气孔导度(Gs)、胞间二氧化碳浓度(Ci)、蒸腾速率(Tr)和水分利用效率(WUE)处理间存在差异,差异不显著。
Taking Zhengdan 958 as experimental material, we studied the effect of different tillage methods on corn (Triticum aestivum L.) under different tillage methods after positioning and studying 28-year stubble deep tillage (DT), no-tillage (NT), tillage (PT) and traditional tillage (CT) Effect of leaf photosynthetic characteristics. The results showed that the net photosynthetic rate (Pn) treatments of maize leaves under different tillage styles were different. The DT treatments were 8.78%, 25.50% and 48.13% higher than those of NT, PT and CT respectively. NT treatment was 15.38% And 16.00% respectively. The PT treatment was 0.54% higher than that of CT. The difference between DT and NT treatment was significant (p <0.05), while the difference between other treatments was insignificant (2010). Stomatal conductance (Gs), intercellular carbon dioxide There were differences among treatments of concentration (Ci), transpiration rate (Tr) and water use efficiency (WUE), with no significant difference.