Optimizing the Optimal Planting Period for Potato Based on Different Water-Temperature Year Types in the Agro-Pastoral Ecotone of North China
文献类型: 外文期刊
第一作者: Yang, Jinpeng
作者: Yang, Jinpeng;He, Yingbin;Ma, Xintian;Luo, Shanjun;Li, Zhiqiang;Lin, Zeru;Zhang, Zhiliang
作者机构:
关键词: potato management; tuber formation stage; precipitation patterns
期刊名称:AGRICULTURE-BASEL ( 影响因子:2.925; 五年影响因子:3.044 )
ISSN:
年卷期: 2021 年 11 卷 11 期
页码:
收录情况: SCI
摘要: Potato is the fourth staple crop in China after wheat, maize and rice. The agro-pastoral ecotone (APE) in North China is a main region for potato production. However, potato yield has been seriously constrained by water shortages because of low precipitation and highly variable precipitation patterns during the growing season in this area. In this study, the Agricultural Production Systems Simulator (APSIM) model was used to simulate potato water-limited yield and historical years were divided into different water-temperature year types to optimize the optimal planting period (OPP) and cultivar of potato. The results showed that the potato yield varied in different water-temperature year types. Fast-developing cultivar Favorita could obtain the highest yield in most places and water-temperature year types due to its relatively short length of tuber formation stage. In this study, we suggest changing the planting date according to the water-temperature year type, which offers a new way to adapt to a highly variable climate. However, our method should be adopted carefully because we only considered climate factors; other agronomic management practices (adjusting planting density, plastic film mulch, conservation tillage etc.) also have a great effect on planting date and cultivar selection, which should be further investigated in the future.
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