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任何作物,只有根系生长良好,地上茎叶才能健壮。所以田间试验有时需要观测根系生长和分布情况。一、根系重量的测定:在试验田中划一定的面积(一段取一平方尺或根据株距定面积),将这个范围的泥地全部挖出(挖的深度,决定于根的长度,一般农作物挖耕作层深度或30—40Cm即可),带有泥土的根系感于细眼筐或箩中,浸在池塘或小河水
Any crop, only the root system grows well, aboveground stems and leaves can be robust. Therefore, field trials sometimes require observation of root growth and distribution. First, the determination of the root weight: in the experimental plot draw a certain area (a take a square foot or according to the plant spacing of the area), all of this range of mud dredged (digging depth, determined by the length of the root, the general crop dig Tillage layer depth or 30-40Cm can), with the roots of soil feeling in fine baskets or trowel, immersed in ponds or creek water