摘要
试验表明,吉林西部苏打盐碱地实施鱼麦轮作模式效益显著,平均鱼产量2 793.3 kg/hm2,小麦产量3 197.6 kg/hm2,平均净收入8 686元/hm2,产投比为2.491。2个生长期0 cm^20 cm土层平均减少盐分8 179.2 kg/hm2,随排水排出系统的盐分约7 200 kg/hm2,土壤含盐量平均下降69.6%,土壤有机质、全量氮、全量磷分别增加了201.7%、46.0%及40.0%。鱼麦轮作模式不会造成土壤次生盐碱化,可在同类地区的农业综合开发中推广应用。表3,参6。
The experiment showed that the rotation of fish and wheat pattern in saline sodic land of the west of Jilin Province in China has a significant benefit. The average yields of fish and wheat are 2 793.3 kg/hm^2 and 3 197.6 kg/hm^2 ,respectively.The average net income is 8 686 yuan（RMB）/hm^2, and the ratio of output and input is 2.491 in the experimental area.The total amount of salt of 8 179.2 kg/hm^2 has been cut down in the soil bed from 0 to 20 cm, and the amount of salt drained away is about 7 200 kg/hm^2 with water at two growth periods.Total salt decreased by 69.6%, and organic matter of soil, total N and total P increased by 201.7% ,46.0% and 40.0%, respectively.This pattern can be used to comprehensive agricultural development in the same kinds of saline sodic land of other areas.
出处
《农业系统科学与综合研究》
CSCD
2006年第3期228-230,共3页
System Sciemces and Comprehensive Studies In Agriculture
基金
中国科学院知识创新工程重大项目专题(KZCX1-SW-19-5-01)
吉林省农业综合开发办项目
关键词
苏打盐碱地
鱼麦轮作
吉林西部
saline sodic land
rotation of fish and wheat
the west of Jilin province
