3种保水剂的保水效果及其对玉米生长的影响

来源 :贵州农业科学 | 被引量 : 0次 | 上传用户:woshi19891
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为玉米抗旱栽培提供依据,采用室内测定、盆栽试验和田间试验相结合的方法,进行了安信、博亚和庆旺3种保水剂的保水效果及其对玉米生长与产量的影响试验。结果表明:3种保水剂的吸水、保水和再吸水能力均表现为安信>博亚>庆旺;安信和博亚保水剂能明显提高玉米出苗率,促进玉米幼苗株高、叶面积、鲜重和干重的增加,对抗旱力弱的玉米品种效果更好;在大田施用安信、博亚和庆旺保水剂的金玉1号玉米分别比不施保水剂的对照增产21.71%、15.82%和1.38%。 To provide the basis for drought-resistant cultivation of maize, the water retention effect of Anshuo, Boya and Qingwang three water retention agents and their effects on the growth and yield of maize were tested by a combination of indoor test, pot experiment and field test. The results showed that the water retention, water retention and reabsorption capacity of the three water retaining agents all showed the order of Anshun> Boya> Qingwang; Anshun and Boya aquasorb significantly increased the emergence rate of maize, promoted the plant height, leaf area and fresh weight of maize seedlings The increase of dry weight was better for maize varieties with weaker drought resistance. Compared with the control without applying super absorbent agent, the Jinyu No.1 maize with Anshun, Boya and Qingwang retaining agent in the field increased yield by 21.71%, 15.82% and 1.38% .
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20世纪中叶,环境问题席卷全球,环境保护成为全球性浪潮;1987年联合国世界环境与发展委员会正式提出了可持续发展的概念。而全球贸易自由化制度发端于1947年关贸总协定的达成,