CAJ | 학술논문

为探索适宜的秸秆还田量与氮肥耦合量，大田条件下设置2个氮用量和5个秸秆还田量处理，研究了小麦灌浆期旗叶净光合速率（Pn）、气孔导度（Gs）、胞间CO2浓度（Ci）、蒸腾速率（Tr）、饱和蒸汽压亏缺（Vpdl）日变化及产量组成。结果表明，不同的秸秆还田量配施氮肥显著提高了小麦旗叶光合能力，且随氮供应量增加小麦旗叶Pn增加。随秸秆还田量增加，小麦光合指标和产量呈先升后降的趋势，更高的氮供应可以容纳更多的秸秆还田量。6000 kg/hm2秸秆量配施氮肥150 kg/hm2和9000 kg/hm2秸秆量配施氮肥225 kg/hm2是合适的秸秆还田与氮肥耦合量。
위탐색괄의적갈간환전량여담비우합량，대전조건하설치2개담용량화5개갈간환전량처리，연구료소맥관장기기협정광합속솔（Pn）、기공도도（Gs）、포간CO2농도（Ci）、증등속솔（Tr）、포화증기압우결（Vpdl）일변화급산량조성。결과표명，불동적갈간환전량배시담비현저제고료소맥기협광합능력，차수담공응량증가소맥기협Pn증가。수갈간환전량증가，소맥광합지표화산량정선승후강적추세，경고적담공응가이용납경다적갈간환전량。6000 kg/hm2갈간량배시담비150 kg/hm2화9000 kg/hm2갈간량배시담비225 kg/hm2시합괄적갈간환전여담비우합량。
The net photosynthesis rate(Pn),stomatal conductance(Gs),intercellular CO2 concentration(Ci), transpiration rate(Tr),vapor deficit at the leaf surface(Vpdl)and wheat yield were studied under two nitrogen a-mounts and five straw return amounts treatments ,for getting best amount of nitrogen fertilizer and straw return .The result showed that photosynthetic capacity was significantly improved at different quantity of straw returned with ni -trogen,and along with the nitrogen supply increasing ,Pn of wheat flag leaf increased .With the increased amount of straw returned ,wheat photosynthetic index and yield is to rise after the trend of the drop ,higher nitrogen supply can accommodate more straw return amount ,6 000 kg/ha straw return amount with nitrogen 150 kg/ha and 9 000 kg/ha straw return amount with nitrogen 225 kg/ha is appropriate coupling quantity to wheat cultivation under this experi-ment conditions .