摘要
在"玉/豆"套作模式下,采用完全随机区组设计,研究钼肥干拌种对套作大豆干物质积累、分配及产量的影响。结果表明,五节期(V5)到完熟期(R8)套作大豆干物质积累总量随施钼量的增加呈先升高后降低的趋势,且都以B2(1.0g/kg)处理最高;V5期到盛花期(R2)干物质主要分配在茎秆和叶片中,钼肥处理降低了干物质在茎秆中的分配率,而增加了叶片的分配比例;R8期时干物质向荚果的分配比例最高,且随施钼量增加呈先增加后减少的趋势,而向茎秆和叶片的分配则表现为相反的趋势;施钼肥能够提高茎叶中的干物质向荚果的转移率及其对荚果的贡献率和产量,且均以B2处理最优。
The effect of molybdenum( Mo) fertilizer on dry matter accumulation,distribution and yield of relay strip intercropping soybean were studied by completely randomized block design. The results showed that dry matter accumulation of the whole plant increased at first and then decreased with the increase of Mo application amount from 5 internodes stage( V5) to full mature stage( R8),and it was the highest under B2( 1. 0g / kg) treatment. The dry matter was mainly distributed to stem and leaves,and the distribution proportion of the dry matter was decreased to stems and increased to leaves,with Mo application at V5 stage and full- bloom stage( R2). The distribution proportion of the dry matter to legumes was the highest,and it increased initially and then reduced with the increase of Mo application. But the changes of the distribution rate of the dry matter to stems and leaves with the increase of Mo application were all opposite to that of legume. The dry matter translocation and contribution ratio from vegetative organs to legumes and yield were increased with the Mo application,and the effect of B2 treatment was the best.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2015年第1期72-76,共5页
Chinese Journal of Oil Crop Sciences
基金
国家自然科学基金(31271668)
国家公益性行业(农业)科研专项(201103001)
现代农业产业技术体系建设专项(CARS-04-PS19)
关键词
钼
套作大豆
干物质
产量
Molybdenum
Relay strip intercropping soybean
Dry matter
Yield
