摘要
【目的】研究复硝酚钠(CSN)与胺鲜酯(DA-6)2种植物生长调节剂,分别和化肥复配施用对棉花化肥吸收率的影响。【方法】通过复硝酚硝与胺鲜酯分别和化肥复配施用,采集棉花2叶期、4叶期、6叶期各20株,测定棉株鲜重,干重,以及全氮、全磷和全钾含量,计算棉花3个时期的干物质比、氮吸收率、磷吸收率、钾吸收率,与CK相比较,分析复硝酚钠与胺鲜酯对棉花肥料吸收率的影响。【结果】复硝酚钠和化肥复配施肥后,棉花对肥料的吸收率在2叶期时氮、磷、钾吸收率分别提高了10.76%、0.87%和10.4%。4叶期时氮、磷、钾吸收率分别提高了18.5%、2.34%和24.86%。6叶期时氮、磷、钾吸收率分别提高了31.14%、5.33%和35.56%;胺鲜酯和化肥复配施肥后棉花对肥料的吸收率在2叶期时氮、磷、钾吸收率分别提高了8.31%、0.85%和9.25%。4叶期时氮、磷、钾吸收率分别提高了11.51%、1.48%和15.66%。6叶期时氮、磷、钾吸收率分别提高了27.11%、4.49%和30.31%。【结论】复硝酚钠与胺鲜酯与化肥复配施用,对棉花化肥吸收率有明显的促进作用。
【Objective】The purpose of this study aims to explore the effect of compound sodium nitrophenolate(CSN)and DA-6 on the chemical fertilizer absorption rate of cotton.【Method】Through 20 cotton plants collected at 2-leaf stage,4-leaf stage and 6-leaf stage by compound application of compound sodium nitrophenolate,DA-6 and chemical fertilizer,the fresh weight,dry weight,total nitrogen content,total phosphorus content and total potassium content of cotton plants were determined,and the dry matter ratio,nitrogen absorption rate,phosphorus absorption rate and potassium absorption rate of cotton in three stages were calculated and compared with CK.In addition,the effects of compound sodium nitrophenolate and DA-6 on the chemical fertilizer absorption rate of cotton were studied.【Result】After the compound fertilization of compound sodium nitrophenolate and chemical fertilizer,the absorption rate of N,P and K increased by 10.76%,0.87%and 10.4%respectively in the the 2-leaf stage,the absorption rates of N,P and K increased by 18.5%,2.34%and 24.86%respectively in the 4-leaf stage and the absorption rates of N,P and K increased by 31.14%,5.33%and 35.56%respectively in the 6-leaf stage;After the compound fertilization of DA-6 and chemical fertilizer,the absorption rates of N,P and K increased by 8.31%,0.85%and 9.25%respectively in the 2-leaf stage,the absorption rates of N,P and K increased by 11.51%,1.48%and 15.66%respectively in the 4-leaf stage and the absorption rates of N,P and K increased by 27.11%,4.49%and 30.31%respectively in the 6-leaf stage.【Conclusion】The compound application of compound sodium nitrophenolate,DA-6 and chemical fertilizer can obviously promote the chemical fertilizer absorption rate of cotton.
作者
刘保军
吴琼
李慧
赵志强
郭庆元
LIU Baojun;WU Qiong;LI Hui;ZHAO Zhiqiang;GUO Qingyuan(College of Agronomy,Xinjiang Agricultural University/Cotton Engineering Research Center,Ministry of Education,Urumqi 830052,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2020年第4期754-761,共8页
Xinjiang Agricultural Sciences
基金
国家重点研发计划“棉花化肥农药减施技术集成研究与示范”(2017YFD0201900)。
关键词
棉花
复硝酚钠
胺鲜酯
化肥吸收率
化肥减施
cotton
compound sodium nitrophenolate
DA-6
absorption rate of chemical fertilizer
reduced application of chemical fertilizer
