摘要
农业生产中存在化肥过量施用、盲目施用等问题,除了增加生产成本,还对环境保持带来压力。本研究以不同类型品种为材料,研究其在全量、半量常规施肥和不施肥条件下的生长特性、光合特性和产量,为合理减少花生化肥施用量提供依据。结果表明,随着施肥水平的提高,植株生长量、单株结果数、单株饱果数等均随之增加;施肥量与品种产量密切相关,产量提升主要源于单株饱果数的增加。不施肥和全量常规施肥条件下,产量高低依次为苏花0537>濮花28>泰花5号,半量常规施肥条件下,产量高低次序为濮花28>苏花0537>泰花5号。半量常规施肥和不施肥条件下,花生产量可达全量常规施肥产量的77.5%~90.0%,验证了花生耐瘠性的特点。此外,本研究还分析了不同施肥水平下花生不同生育时期中Pn、Gs、Ci和Tr等光合参数。
There are many excessive or unbalanced applications of chemical fertilizer in agricultural production,causing the increase of production cost and environmental pollution.In this study,the growth characteristic,photosynthetic characteristic and yield of different peanut varieties were estimated under different fertilization levels(full,half and no fertilization),providing a basis for reducing the amount of fertilizer applied on peanut production.The results showed that with the increase of fertilization level,the growth yield,the pod number per plant and the full pod number per plant were increased.The fertilization amount was closely related to the yield of varieties,and the increase of yield was mainly due to the increasing of the full pod number per plant.The yield rankings were Suhua0537>Puhua28>Taihua5 under the conditions of no fertilization and full fertilization,and Puhua28>Suhua0537>Taihua5 for half amount of fertilization.Peanut can still reach 77.5%~90.0%of yield under half and no fertilization,verifying its relatively strong barren tolerance.In addition,photosynthetic parameters such as Pn,Gs,Ci and Tr were analyzed in different growth stages of peanut under different fertilization levels.
作者
陈志德
刘瑞显
沈一
刘永惠
沈悦
王晓军
CHEN Zhi-de;LIU Rui-xian;SHEN Yi;LIU Yong-hu;SHEN Yue;WANG Xiao-jun(Institute of Industrial Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;Xuzhou Institute of Agricultural Sciences of the Xuhuai District,Xuzhou 221121,China)
出处
《花生学报》
北大核心
2018年第3期47-51,31,共6页
Journal of Peanut Science
基金
国家花生产业技术体系(CARS-13)
江苏省农业科学院"小而特"学科建设(ZX(18)2014)
关键词
花生
施肥水平
耐瘠性
光合特性
peanut
fertilizer level
barren tolerance
photosynthetic characteristic
