深松对土壤特性及玉米产量的影响(英文)

被引:34
作者
李霞 [1 ]
汤明军 [1 ]
张东兴 [2 ]
王维新 [1 ]
崔涛 [2 ]
机构
[1] 石河子大学机械电气工程学院
[2] 中国农业大学工学院
关键词
土壤; 作物; 耕种; 容重; 坚实度; 含水量; 产量;
D O I
暂无
中图分类号
S513 [玉米(玉蜀黍)];
学科分类号
摘要
土壤压实和缺水成为制约华北平原作物产量的2个重要因素,为了提高半干旱地区旱地对自然降水的利用率,打破犁底层,达到节约用水、提高作物产量的目的,该文于2011年至2013年,在济宁进行了深松和当地旋耕2种耕作方式对土壤物理性质和玉米产量影响的试验研究。试验采用随机化完全区组设计,并采用方差分析评价不同耕作方式的耕作效果。试验结果表明,除了表层土(0~15 cm),在作物的所有生长时期,深松耕作下的土壤容重和紧实度明显小于旋耕,尤其是玉米吐丝期。另外,在玉米吐丝期,深松下的25~35 cm土层含水量比旋耕高出9.45%(2012年)和8.64%(2013年)。深松能显著提高玉米产量达6.08%7.23%,但2种耕作方式对玉米的千粒质量影响相差不大。该研究对为华北平原提供一种更可持续的耕作方式—深松耕作具有重要意义。
引用
收藏
页码:65 / 69
页数:5
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