摘要
采用裂区设计方法,研究了渭北旱原早地覆盖耕作对小麦生长发育的影响。结果表明,残茬覆盖小麦增产显著。覆盖时期以全覆盖和夏闲期覆盖为宜。最佳覆盖量为400kg/亩。在旱地上施肥能显著提高小麦产量。翻耕配合全覆盖施肥产量最高,平均亩产316.3kg,比浅耕不覆盖不施肥增产77.7％。
Using split—plot design, the author studied the effect of stubble mulch tillage on wheat growth and development in rainfed areas on Weibei highland. The results indicated that wheat yield increased significantly with stubble mulch, and the complete mulch or the mulch at summer fallow period was fine, with the best mulch amount of 6000kg per hectare. Applying fertilizers could increase wheat yields significantly, with the average yield of 4744.5kg per hectare, which increased by 77.7％ compared with the check of shallow plowing, no mulch and no fertiliger applying, the highest yield was got by prowing plus complete mulch and fertilizer applying.
出处
《莱阳农学院学报》
1989年第4期12-16,共5页
Journal of Laiyang Agricultural College
关键词
旱地
覆盖
耕作
小麦
裂区设计
Rainfed areas
Spit—plot design
wheat
stubble mulch
