保水剂基质育苗移栽对杂交谷子生长特征影响初探

Study on the Effect of Seedling Transplanting in Water Absorbent Matrix on Growth Charicteristics of Hybrid Millet

张家口地区属长城沿线半干旱地区,年均降水量仅为350-400mm,农田水分不足与作物需水的矛盾限制了该区农业发展,因此利用和保蓄有限的降水资源成为农业可持续发展的关键‘。张杂谷’系列谷子杂交种是张家口市农业科学院具有自主知识产权的科研成果,已在中国北方干旱、半干旱地区累计推广近6750万hm^2。为了充分发挥杂交谷子的增产潜力,试验以‘张杂谷3号’和海明牌保水剂为试验材料,采用单因素完全随机设计方法就不同保水剂和土壤比例基质育苗移栽对杂交谷子生长特征的影响进行了研究。试验结果显示,最适宜的保水剂和土壤混合基质比例为1：100。

Zhangjiakou area located along the great wall belongs to semi-arid area with only 350-400 mm average annual precipitation. The contradiction between farmland water shortage and crop water requirement limits agricultural development of the area, therefore, its key measure for agricultural sustainable development to apply and conserve limited rain resources. ‘ Zhangzagu ’ hybrid millet which is the achievement made by our academy with independent intellectual property rights has been promoted nearly 67.5 million hm 2 in arid and semi-arid area in North China. To maximize yield potential of hybrid millet, this experiment took ‘ Zhangzagu ’ hybrid mille and Hamming brand water retaining agent as test material and used single factor completely random design method to study the effect of seedling transplanting with different radio of water retaining agent and soil on growth characteristics of hybrid millet. Experiment result showed that the most suitable ratio of base material combined water retaining agent and soil was 1：100.