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“寒优1027”在上海地区作单季晚稻栽培,一般全生育期约160天,主茎出叶17～18张,株高105cm左右。在产量构成上既表现有一定的穗大粒多优势,又需要有相应的穗数基础。高产栽培一般采用穗粒兼顾型途径,即建立适宜基础群体,提高分蘖成穗密,稳定高产所需的有效穗数;稳攻大穗,提高结实率,增加单位面积结实粒数。而在其中,建
“Han You 1027” in Shanghai for single-season late rice cultivation, the general growth period of about 160 days, the main stem leaves 17 to 18, about 105cm tall. In the composition of the production of both performance of a certain number of spike big grain more advantages, but also need to have the appropriate number of spikes. High-yielding cultivation generally adopts the method of both grain and grain, that is, to establish appropriate basic groups, to increase the effective panicles required for tillering to become ear spikes and to stabilize high yield; to stabilize the large spikes, increase the seed setting rate, and increase the number of grains per unit area. Among them, built