中国烟草学报2009，Vol.15Issue(5)：33-37,5.DOI:10.3969/j.issn.1004-5708.2009.05.008
N、P互作对烤烟碳氮代谢关键酶活性的影响
Effects of nitrogen and phosphorus interaction on enzyme activity in carbon and nitrogen metabolism
摘要
Abstract
Effects of nitrogen and phosphorus interaction on enzyme activity in carbon and nitrogen metabolism and the content of chlorophyll were studied by filed experiment. Results showed that with equal K fertilizer rate, the tendency of nitrate reduc-tase (NR) activity declined at early and middle stage; the decline of invertase (INV) activity shifted to an earlier date; amy-lase activity increased at later stage and the chlorophyll content of tobacco leaves increased faster at earlier stage. The nitrate reductase (NR) activity increased at earlier stage under phosphorus application of 45-105 kg/hm~2; the application of phos-phorus at 105 kg/hm~2 and 135 kg/hm~2 had no effect on the invertase (INV) activity. Applying more phosphorus can greatly increase amylase activity at later stage. With nitrogen level of 60 kg/hm~2, chlorophyll content increased at the application of phosphorus of 45-105 kg/hm~2. In conclusion, mid level of nitrogen is inductive to carbon and nitrogen metabolism which can lead to high quality tobacco growth. With nitrogen level of 60 kg/hm~2, tobacco grows better at N and P20 and K_2O rate of 1:1.75:3.375.关键词
烤烟/碳氮代谢/氮磷互作/硝酸还原酶/转化酶/淀粉酶/叶绿素Key words
flue-cured tobacco/carbon and nitrogen metabolism/nitrogen and phosphorus interaction/nitrate reductase分类
农业科技引用本文复制引用
刘国顺,彭智良,黄元炯,李立丹..N、P互作对烤烟碳氮代谢关键酶活性的影响[J].中国烟草学报,2009,15(5):33-37,5.基金项目
国家烟草专卖局资助项目:南阳国家优质烟叶生产科技示范基地建设(合同号:110200401004) （合同号:110200401004）
