论文部分内容阅读
在半干旱黄土丘陵沟壑区,为了充分利用有限的降水资源提高农作物产量,在旱作梯田地采用微集水种植与常规平作2种种植方式进行田间对比试验,研究了玉米的出苗率及籽粒产量变化情况。结果表明,微集流单行种植与平作对照区玉米籽粒产量存在极显著差异,平均比对照区提高了28.26%;微集流双行种植与平作对照区玉米籽粒产量存在显著差异,平均比平作对照区提高了19.99%;不同种植方式下玉米籽粒产量随种植密度的增加呈先增加后降低趋势,种植密度为4.8万株/hm2时产量较高。由此可知,微集流种植能够有效提高旱作梯田农作物的产量。
In the semiarid loess hilly and gully region, in order to make full use of limited precipitation resources to improve the crop yield, field experiments were conducted in the dry-terraced fields using two kinds of planting methods: micro-catchment and conventional planting. The emergence rate and yield of maize Changes. The results showed that there was a significant difference in grain yield between maize single-cropping and flat-cropping control, and the average grain yield was 28.26% higher than that of the control. Maize grain yield was significantly different between the two-row micro-flow and double cropping control, The area increased by 19.99%. Under different planting patterns, the grain yield of maize increased firstly and then decreased with the increase of planting density, and the yield was higher when planting density was 48000 plants / hm2. It can be seen, micro-flow planting can effectively improve the yield of dry land terraces crops.