中国农业科技导报2018，Vol.20Issue(5)：91-99,9.DOI:10.13304/j.nykjdb.2017.0786
减量施肥模式对稻麦轮作体系作物产量和养分利用效率的影响
Effect of Reducing Fertilizer Application Models on Crop Yield and Nutrient Use Efficiencies in Rice-wheat Cropping System
摘要
Abstract
In order to explore the effects of different reducing fertilizer application modes on crop yield, nutrient use efficiency in rice-wheat cropping system and to provide theoretical basis for achieving high efficient application of chemical fertilizer and its zero increase in China, this paper carried out one-year 2 crops field experiment of rice-wheat cropping system. The experiment set 6 treatments including no fertilizer (CK), conventional chemical fertilization (CF), combined application of organic manure and chemical fertilizer (LF1), reducing 20％ chemical fertilizer plus increasing nitrogen fertilizer synergist application (LF2), reducing 20％ chemical phosphorus fertilizer along with phosphorus activator application(LF3), and reducing 20％ chemical nitrogen fertilizer and 20％ chemical phosphorus fertilizer along with nitrogen fertilizer synergist plus phosphorus activator application (LF4). The results indicated that compared with conventional fertilizer (CF), rice and wheat yield of LF2 treatment increased significantly by 7.6％, that of LF4 treatment decresed by 6.2％. The LF1 and LF3 treatments had no obvious effect on rice and wheat yield. The LF2 treatment could significantly increase the partial fertilizer productivity of nitrogen, phosphorus, and potassium and uptaking efficiency of nitrogen and phosphorus. The LF4 treatment could significantly increase nitrogen and phosphorus partial factor productivity (NPFP), and the uptake efficiency (NUPE) of nitrogen and phosphorus, and significantly reduce potassium partial factor productivity (PPFP). The LF1 treatment could significantly increase only the nitrogen use efficiency (NUE), whereas the LF3 treatment had no significant effect on N, P, K nutrient use efficiency. In conclusion, the LF2 treatment was in favour of coordinating crop nutrient uptake and increase yield. It could be a preferent pattern for reducing fertilizer application and increasing efficiency in rice-wheat cropping system at the Middle and Lower Reaches of the Yangtze River and areas with similar ecological conditions.关键词
稻麦轮作/减量化肥/养分利用效率/产量Key words
rice-wheat cropping system/reduced fertilizer application/nutrient use efficiency/yield分类
农业科技引用本文复制引用
刘威,熊又升,徐祥玉,黄修荣,贺文杰,周剑雄,袁家富..减量施肥模式对稻麦轮作体系作物产量和养分利用效率的影响[J].中国农业科技导报,2018,20(5):91-99,9.基金项目
"十二五"国家科技支撑计划项目(2015BAD23B03,2013BAD07B10) （2015BAD23B03,2013BAD07B10）
湖北省农业科学院重大研发成果培育项目(2017CGPY01)资助. （2017CGPY01）
