论文部分内容阅读
[目的]明确土壤水分对芥蓝生长和水分利用的影响。[方法]对相同灌溉频率、不同灌溉上限下芥蓝水分吸收和利用的变化规律进行了研究。[结果]土壤水分亏缺极显著降低芥蓝苗期植株、成熟期植株及其各器官的水分含量;芥蓝单株耗水量在土壤A为55%和土壤B为45%处理时最小,分别为2.244和2.235 L/株,比CK节水23.91%和21.14%;水分利用效率分别在土壤A为55%和土壤B为35%处理时最高,分别为6.043和5.958 g/L,比CK提高20.09%和41.72%;灌溉水分生产率二个土壤都在75%处理时最高,分别为40.44g/L和40.49 g/L,比对照提高了5.64%和13.39%。[结论]通过控制灌溉上限能节约芥蓝水分消耗,提高水分利用效率,提高产量和品质。
[Objective] The research aimed to clarify the influence of soil moisture on the growth and water use of kale. [Method] The variation regularity of water absorption and utilization of Chinese kale under the same irrigation frequency and irrigation upper limit was studied. [Result] The soil water deficit significantly reduced the water content of plant and mature plant in its seedling stage and its organs. The single plant water consumption of Chinese kale was the lowest when the soil A was 55% and the soil B was 45% Which was 2.244 and 2.235 L / strain respectively, saving 23.91% and 21.14% more than CK. The highest water use efficiency was 6.043 and 5.958 g / L when soil A was 55% and soil B was 35%, respectively, which was higher than CK 20.09% and 41.72% respectively. The irrigation water productivity of the two soils were the highest at 75% treatment, which were 40.44g / L and 40.49g / L, respectively, 5.64% and 13.39% higher than the control. [Conclusion] The control of irrigation upper limit could save water consumption of Chinese kale, improve water use efficiency and increase yield and quality.