有机物料还田对夏玉米穗位叶光合性能及氮代谢的影响

裴丽珍, 陈远学, 张雯雯, 肖华, 张森, 周元, 徐开未

Effects of organic material returned on photosynthetic performance and nitrogen metabolism of ear leaf in summer maize

PEI Li-Zhen, CHEN Yuan-Xue, ZHANG Wen-Wen, XIAO Hua, ZHANG Sen, ZHOU Yuan, XU Kai-Wei

图3 不同物料还田对夏玉米叶面积指数、叶面积积累速率和群体光合势的影响 CK: 无物料还田; FS: 蚕豆秸秆还田; RS: 油菜秸秆; PM: 猪粪还田。误差线为标准误。不同小写字母代表处理间差异显著(P < 0.05)。(a)、(b)为叶面积指数; (c)、(d)为叶面积积累速率; (e)、(f)为群体光合势。6 leaf为六叶期; 12 leaf为十二叶期; Silking为吐丝期; 20 d after silking为吐丝期后20 d; Seeding-6 leaf为播种至六叶期; 6-12 leaf为六叶期至十二叶期; 12 leaf-Silking为十二叶期至吐丝期; 6 leaf-Silking为六叶期至吐丝期; Silking-20 d after silking为吐丝期至吐丝后20 d。

Fig. 3 Effects of different organic materials returned on leaf area index, leaf area accumulation rate and leaf area duration of summer maize CK: no material; FS: faba bean straw; RS: rape straw; PM: pig manure returned to the field. Error bars are standard errors. Different lower-case letters represent significant difference in treatments at P < 0.05. (a) and (b) are leaf area index; (c) and (d) are leaf area accumulation rate;(e) and (f) are leaf area duration. 6 leaf is six leaf stage; 12 leaf is twelve leaf stage; silking is silking; 20 d after silking is 20 d after silking;seeding-6 leaf is seeding to six leaf stage; 6-12 leaf is six leaf stage to twelve leaf stage; 12 leaf-silking is twelve leaf to silking stage; 6 leaf-silking is six leaf stage to silking stage; silking-20 d after silking is silking to 20 d after silking stage.