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1 选地隔离制种田要选择四周空间隔离300m以上、大块连片旱涝保收地块,做为制种田用地。不宜选择零星地块或形状不规则和垄数不多的长条形地块。 2 2:2平垄整地法这种整地方式是保证这项高产制种技术的先决条件。所谓2:2平垄整地法,就是在起垄后的地块采取随起、,随隔二垄界120°V型木耢子耢二垄。使耢过的二垄形成中间略高的一个大垄。这种整地方式必须在不跑墒、不夹干的情况下进
An optional farming system to choose isolation around the space of more than 300m, block contiguous blocks of land salient areas as a system of farming land. Should not choose scattered blocks or irregular shape and ridge a few small strip of land. 2 2: 2 Flat ridge land preparation method This site preparation method is a prerequisite for guaranteeing this high-yielding seed production technology. The so-called 2: 2 flat ridge preparation method, is to take the ridge after the plots to take, with every two ridge community 120 ° V-shaped wooden raccoon ridge two ridge. The two ridges that have been crossed form a big ridge slightly higher in the middle. This way of preparation must not run moisture, not dry folder into the case