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2011~2012年以3个不同类型的夏谷品种衡谷10号(常规品种)、冀谷31(抗除草剂品种)和张杂谷11号(杂交谷子品种)为试材,在麦茬地进行免耕播种,以传统的旋耕条播为对照,比较2种播种方式下谷子经济性状和产量的变化。试验表明:留苗密度相同时,3个谷子品种免耕播种与旋耕播种对谷子株高、穗长、穗重、穗粒重和产量的影响表现不同;谷子品种相同时,免耕播种与旋耕播种不同留苗密度的谷子产量差异较大。免耕播种时,衡谷10号和冀谷31均在留苗密度为75万株/hm2时产量最高,2年产量分别为5 380.35kg/hm2、5 472.45kg/hm2和5 308.20kg/hm2、5 378.03kg/hm2,较同密度的CK增产0.19%、1.52%和9.67%、10.36%;张杂谷11号在留苗密度为37.5万株/hm2时产量最高,2年产量分别为4 420.20kg/hm2、4 890.49kg/hm2,分别较同密度的CK增产19.46%、18.08%。结果表明夏谷免耕栽培产量略大于CK,常规品种与抗除草剂品种留苗75万株/hm2较适宜;杂交品种留苗以37.5万株/hm2较适宜。
From 2011 to 2012, three different types of summer grain variety Henggu 10 (conventional variety), Ji Gu 31 (anti-herbicide variety) and Zhangzhe Valley 11 (hybrid grain variety) No-tillage sowing, traditional rotary tillage sowing as a control, to compare the two kinds of sowing millet economic traits and yield changes. The results showed that the effect of no-tillage sowing and rotary sowing on the height, ear length, ear weight, grain weight per ear and yield of three millet cultivars were different under the same density of seedlings. When the millet varieties were the same, Rotary tilling different seedling density millet production differences are large. No-tillage sowing, Heng Valley No. 10 and Ji Valley 31 were the highest yield when the seedling densities were 750,000 plants / hm2. The two-year yields were 5 380.35kg / hm2, 5 472.45kg / hm2 and 5 308.20kg / hm2 respectively, 5 378.03 kg / hm2, 0.19%, 1.52% and 9.67%, 10.36% more than the CK of the same density. The highest yield of Zhangzigaya 11 was obtained when the seedling density was 375,000 plants / hm2. The yield of 2 years was 4 420.20kg / hm2,4890.49kg / hm2, respectively, compared with the same density CK yield 19.46%, 18.08%. The results showed that the summer tillage cultivation yield slightly larger than CK, conventional varieties and anti-herbicide seedling seedlings 750000 / hm2 more appropriate hybrid seedling seedlings to 375000 / hm2 more appropriate.