摘要
通过连续8年在全省5个生态区9个9区固定轮作场圃综合试验,试验区专项研究,框区、盆栽试验,实验室分析,以及大量的大面积生产调查,发现大豆重、迎茬种植,减产明显,且随重茬年限的增加而加剧。大豆重迎茬减产程度受气象条件及生态环境影响,通过农艺措施调控,可以减缓产量的损失。短期重迎茬对大豆脂肪、蛋白质含量无明显影响,三年以上的长期重茬脂肪含量降低、蛋白质含量增加。
The experiments had been carried out by 8 years in 9 rotation nurses with 9 plots and series of field experiments in 5 ecological regions of Heilongjiang province since 1993. In the same time, the investigation was made in soybean fields. The result showed that: the yield was reduced significantly when the soybean was cultured continuously and alternately. And the more continuous time, the more yield reduces. The degree to reduce yield of continuous and alternate soybeans was effected by climate and eco-environment. The yield reduce can be weakened by agronomic methods. There was no significant effect on oil and protein content of seeds in the soybeans cultured continuously and alternately for a short period. When the continuous crops was more than 3 years the oil would be reduced, and the protein would be increased.
出处
《黑龙江农业科学》
2003年第3期1-4,共4页
Heilongjiang Agricultural Sciences
基金
黑龙江省科技攻关招标课题
黑龙江省科技攻关重大项目(G94B05-04-01)
国家"九五"重中之重科技攻关课题"大豆大面积高产综合配套技术研究开发与示范"03专题(95-001-05-03)之01子专题
