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油菜冬壮是高产的基础,春发则是高产的关键。春发油菜单株绿叶数多,叶面积大,茎秆粗壮,分枝多,干物质积累也多,有利于角果和籽粒的发育。扬油1号于3月10日左右进入抽薹期,4月初始花,4月下旬终花进入角果发育成熟期。从蕾薹期至成熟期是油菜增角、增粒、增重的关键时期。现将此阶段的生育特点、主要形态指标与实现三增夺高产的栽培技术介绍如下。 (一)蕾薹期 1.生长发育特点及其主要形态指标:蕾薹期是油菜营养生长和生殖生长两旺时期,
Winter cole is the basis of high yield, spring hair is the key to high yield. Spring leaf oil plant leaves more than the number of leaves, leaf area, stem stout, more branches, dry matter accumulation is also more conducive to the development of pod and grain. Yang You 1 on March 10 into the bolting period, the initial flowering in April, April end flowers into the pod development maturity. From budding stage to maturity is the rape by angle, grain, weight-critical period. Now this stage of reproductive characteristics, the main morphological indicators and the realization of three high yielding cultivation techniques introduced below. (A) Lei Sedge 1. Growth and development characteristics and its main morphological indicators: Lei Sapling rape vegetative and reproductive growth period,