论文部分内容阅读
秋发油菜秋季生长快,冬前叶面积指数大(2.48),生长率高,冬前干物质积累多,(254.40kg/亩),为春后生长发育奠定了良好的物质基础;其花果期的叶面积密度适当,植株基部通透性好,植株占有的空间面积大,层次结构合理,生物产量高,花序重量大,因而获得高产。油菜秋发栽培能充分挖掘时间、空间潜力及充分发挥冬前增叶、春后增果的部位优势。
Autumn rape blossoms grew faster in autumn with a larger leaf area index (2.48) before winter, with higher growth rate and more dry matter accumulation before winter (254.40 kg / acre), which laid a good material foundation for the growth and development after spring. Period of leaf area density is appropriate, the plant base permeability is good, the plant occupies a large area of space, the hierarchical structure, biological yield, inflorescence weight, and thus obtain high yield. Rapeseed autumn cultivation can fully tap the time and space potential and give full play to winter by the leaf, spring after the increase of the advantages of the site.