Effects of Different Intercropping Modes on Growth, Yields and Economic Benefit of Cassava and Peanut in Symbiotic Period  

不同间作方式对共生期木薯-花生生长发育、产量及经济效益的影响（英文）

作　　者：林洪鑫[1,2] 袁展汽[2] 刘仁根[2] 肖运萍[2] 汪瑞清[2] 吕丰娟[2] 王子君[2] 

机构地区：[1]江西农业大学,江西南昌330045 [2]江西省农业科学院土壤肥料与资源环境研究所/农业部长江中下游作物生理生态与耕作重点实验室/国家红壤改良工程技术研究中心,江西南昌330200

出　　处：《Agricultural Science & Technology》2016年第9期2017-2021,2026,共6页农业科学与技术（英文版）

基　　金：Supported by Youth Innovation Fund of Jiangxi Sciences of Agricultural Sciences(2013CQN010);Earmarked Fund for China Agriculture Research System(CARS-12-jxyzq)~~

摘　　要：[Objective] This study was conducted to investigate effects of different intercropping modes on growth, yields and economic benefit of cassava and peanut in symbiotic period. [Method] With sole cropping of cassava （M1） and sole cropping of peanut （M2） as control groups, effects of intercropping of cassava with 1 row, 2 rows and 3 rows of peanut （M3, M4 and M5）on crop growth, yields and economic benefit were studied. [Result] Intercropping affected both growth and yields of cassava and peanut. Growth competition existed between cassava and peanut, and plant heights of cassava and peanut changed similarly. In late stages of intercropping, treatments M1, M2 and M5 showed higher plant heights under no nitrogen application, while treatment M3 and M4 exhibited higher plant heights under nitrogen application; intercropping improved leaf temperature, but no obvious law could be observed among different intercropping treatments; and intercropping improved total dry matter amount, which was the highest in M5 in root expanding stage and on the 30th day of the expanding stage, and the highest in M4 on the 60th day of the expanding stage. Intercropping reduced the yield of single plant, but improved the economic benefit of red upland soil; and under no nitrogen application and nitrogen application, cassava yields decreased by 25.35% and 14.55%, respectively, peanut yields decreased by 28.76% and 52.60%, respectively, while economic benefit increased by 72.90% and 56.82%, respectively. [Conclusion] Compared with sole cropping, interplanting cassava with 1 row, 2 rows or 3 rows of peanut could all improve economic benefit, and the economic benefit increased with number of rows of interplanted peanut increasing.[目的]探讨不同间作方式对不同间作方式对共生期木薯-生生长发育、产量及经济效益。[方法]试验以木薯净作(M1)、花生净作(M2)为对照,研究了木薯间作1行、2行、3行花生(M3、M4、M5)对共生期作物生长发育、产量和经济效益的影响。[结果]间作对木薯、花生的生长发育和产量均有影响。木薯与花生存在竞争生长关系,株高协同增高,在间作后期,在无氮时以M1、M2和M5的株高较高,而施氮时以M3、M4株高较高;间作提高了叶片温度,但不同间作处理间无明显规律。间作提高了干物质总产量,在块根膨大期和膨大期30 d,干物质总产量以M5最高,而在块根膨大期60 d以M4最高。间作降低了单一作物产量,但提高红壤旱地经济效益;不施氮和施氮时木薯产量分别下降25.35%、14.55%,花生产量分别下降28.76%、52.60%,而经济效益增加了72.90%、56.82%。[结论]与净作相比,木薯间作1行、2行和3行花生均提高了经济效益,且随间作行数增加而增加。

关 键 词：CASSAVA PEANUT INTERCROPPING Symbiotic period Growth and development 

分 类 号：S533[农业科学—作物学] S565.2