摘要
【目的】在氮磷减施的条件下,研究钾锌互作与习惯施肥(以下简称习惯施肥)对棉花生物量、产量与养分吸收的差异,为棉花的经济效益和耕地可持续发展提供理论意义。【方法】设5个处理,处理1:习惯施肥(NP);处理2:80%习惯施肥(80%NP);处理3:80%习惯施肥+钾肥(80%NP+K);处理4:80%习惯施肥+锌肥(80%NP+Zn);处理5:80%习惯施肥+钾肥+锌肥(80%NP+K+Zn)。【结果】80%习惯施肥(80%NP)相比习惯施肥(NP)显著降低棉花生物量、产量及养分的吸收利用;80%习惯施肥+钾肥(80%NP+K);80%习惯施肥+锌肥(80%NP+Zn)较80%习惯施肥(80%NP)提高了棉花生物量、产量和养分的吸收利用,但低于习惯施肥(NP);80%习惯施肥+钾肥+锌肥(80%NP+K+Zn)与习惯施肥(NP)没有显著差异。【结论】在氮磷减施条件下,选择80%习惯施肥+钾肥+锌肥(80%NP+K+Zn)对提高新疆棉花产量和经济效益的效果最佳。
【Objective】To explore the effects of K and Zn fertilizer on cotton biomass,yield and nutrient uptake under the condition of N and P reduction in the hope of providing theoretical significance for the economic benefits of cotton and the sustainable development of cultivated land.【Methods】Five treatments were set in the experiment.Treatment I:conventional fertilization(NP).Treatment II:80%conventional fertilization(80%NP);Treatment:III:80%conventional fertilizer+potash fertilizer(80%NP+K);Treatment:IV:80%conventional fertilizer+zinc fertilizer(80%NP+Zn);Treatment V:8%conventional fertilizer+potash+zinc fertilizer(80%NP+K+Zn).【Results】Compared with farmers’conventional fertilization(NP),80%farmers’conventional fertilization(80%NP)significantly reduced the biomass,yield and nutrient uptake and utilization of cotton.80%of farmers who were accustomed to fertilizing Zinc fertilizer(80%NPZn)increased the absorption and utilization of cotton biomass,yield and nutrients compared with 80%farmers'conventional fertilization(80%NP),but it was lower than that of farmers'conventional fertilization(NP).There was no significant difference between conventional fertilization(80%NP+K+Zn)and conventional fertilization(NP).【Conclusion】Under the condition of reducing fertilizer application,80%conventional fertilizer+potash fertilizer+zinc fertilizer(80%NP+K+Zn)has the best effect on improving cotton yield and economic benefits in Xinxiang.
作者
李亚莉
哈丽哈什·依巴提
张炎
李源
李青军
LI Yali;Harihash Yibati;ZHANG Yan;LI Yuan;LI Qingjun(Research Institute of Soil,Fertilizer and Agricultural Water Conservation,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Tacheng Agricultural Technology Extension Center,Tacheng Xinjiang 834700,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2020年第4期746-753,共8页
Xinjiang Agricultural Sciences
基金
国家重点研发计划(2017YFD0201900)。
关键词
棉花
氮磷减施
生物量
产量
养分吸收
cotton
reduction of nitrogen and phosphorus
biomass
production
nutrient absorption
