论文部分内容阅读
本项研究针对延边地区的生态特点与生产水平,主要探讨本地区水稻亩产600～700公斤的超高产栽培技术。经过3年的努力建设了万亩示范田,阐明了本地区亩产600公斤以上的产量结构为:亩有效穗数40～45万穗,穗总粒数为80～90粒,结实率80%左右,千粒重25克以上。高产栽培措施是:选用秆较矮、穗较大的中熟高产良种;旱育大苗和营养钵育秧;栽插4穴正条式;采用碳素型施肥法及结实期根外喷施尿素及磷酸二氢钾等综合技术。本文提出了品种、育秧、施肥、密度等系列配套技术。为寒冷稻作区水稻高产栽培提供了理论和实践依据。
This study aims at the ecological characteristics and production level in Yanbian area, mainly discussing the super high-yielding cultivation techniques of 600 ~ 700 kg per mu of rice in this area. After three years of efforts to build a mu demonstration field, clarified the output of more than 600 kilograms per mu in the region yield structure: acres of effective spike 40 to 450,000 spikes, the total spikelets of 80 to 90 grains, seed setting rate of 80% About 1000 grains weight more than 25 grams. High-yielding cultivation measures are: selection of short stalk, spike large middle-maturing high-yielding seedling; seedling and dry nursery nursery stocking seedlings; planting 4 points is a positive bar-style; Potassium dihydrogen phosphate and other integrated technology. This paper presents varieties, seedlings, fertilization, density and other supporting technologies. This provided theoretical and practical basis for high-yield cultivation of rice in cold paddy area.