Optimizing the Optimal Planting Period for Potato Based on Different Water-Temperature Year Types in the Agro-Pastoral Ecotone of North China

Jinpeng Yang, Yingbin He, Shanjun Luo, Xintian Ma, Zhiqiang Li, Zeru Lin and Zhiliang Zhang
Additional contact information
Jinpeng Yang: Institute of Agriculture Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Yingbin He: Institute of Agriculture Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Shanjun Luo: School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430070, China
Xintian Ma: Institute of Agriculture Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Zhiqiang Li: School of Management, Tianjin Polytechnic University, Tianjin 300387, China
Zeru Lin: School of Management, Tianjin Polytechnic University, Tianjin 300387, China
Zhiliang Zhang: Institute of Water-Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling 712100, China

Agriculture, 2021, vol. 11, issue 11, 1-13

Abstract: 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.

Keywords: potato management; tuber formation stage; precipitation patterns (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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