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克旱20为黑龙江省农业科学院克山分院于1990年,以克89F6南-2为母本,克89F1-1237为父本,进行有性杂交育成。为高产、旱肥类型,晚熟,全生育期88天左右。分蘖力强,繁茂性好。穗纺锤型,长芒、红粒,角质率高,每穗粒数30.7粒,千粒重36.7克。抗旱性较好,耐湿性强,抗倒性强,熟相好。栽培密度以平方米保苗600～650株为宜,一般情况播种量为15.0～17.0kg/666.7m2。做到平衡施肥,N:P:K比例为1.2:1:0.4,适量加入S肥,以15.0～17.0kg/666.7m2较为适宜,2/3为底肥,于前一年秋季施入,1/3为种肥。
Khan 20 for the Keshan Branch of Heilongjiang Academy of Agricultural Sciences in 1990 to grams 89F6 South -2 as the female parent grams 89F1-1237 as the male parent, sexual breeding. For high yield, dry fertilizer type, late maturity, the whole growth period of about 88 days. Tillering ability, good luster. Spindle spindle type, long-mans, red, high rate of stratum corneum, grains per panicle 30.7 grains, grain weight 36.7 grams. Better drought resistance, moisture resistance, lodging resistance, cooked and good. Cultivation density of seedlings per square meter 600-650 is appropriate, the general situation sowing capacity of 15.0 ~ 17.0kg / 666.7m2. In order to balance the fertilization, the ratio of N: P: K is 1.2: 1: 0.4, the appropriate amount of S fertilizer is suitable for 15.0-17.0kg / 666.7m2 and the base fertilizer is 2/3, which is applied in the autumn of the previous year, 3 kinds of fertilizer.