论文部分内容阅读
三门峡市位于豫西丘陵山区,属于暖温带大陆性季风气候,是典型的旱作农业区,年际间干旱频率高达87.6%,且时空分布不均,经常发生春旱、伏旱、秋旱和干热风天气,小麦生长完全依赖自然降水,干旱是制约小麦生产的主要因素。镇压是小麦生产上一项传统的保墒增产技术,不同镇压时期保墒效果存在差异,为科学测定不同镇压方式、不同镇压时期对小麦苗情、产量的影响,从中筛选出适宜当地的最佳镇压方式及镇压时期,特安排
Sanmenxia City is located in the hilly and mountainous regions in the west of Henan province and belongs to the warm temperate continental monsoon climate. It is a typical dry farming area. The annual drought frequency is as high as 87.6% and its spatial and temporal distribution is uneven. Spring, drought, autumn drought and dry hot wind often occur Weather, wheat growth is completely dependent on the natural precipitation, drought is the main factor restricting wheat production. Suppression is a traditional technique of increasing soil moisture and increasing yield in wheat production. There are differences in the effect of soil moisture conservation during different repression periods. In order to scientifically determine the effect of different repression methods and different repression periods on the wheat seedling yield and yield, we selected the best local repression methods And repression, special arrangement