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Journal of Agriculture ›› 2023, Vol. 13 ›› Issue (5): 15-20.doi: 10.11923/j.issn.2095-4050.cjas2022-0155

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Effects of Planting Patterns on Plant Properties and Yield of Different Early Spring Potato Varieties

FAN Chunmei(), PENG Errui, CHEN Jinsong, YIN Yamin()   

  1. College of Water Conservancy, Yunnan Agricultural University, Kunming 650201, Yunnan, China
  • Received:2022-11-09 Revised:2023-01-06 Online:2023-05-20 Published:2023-05-16

Abstract:

The study aims to screen out the appropriate planting patterns of potato and provide data support for large-scale promotion of potato varieties and farmers’ income increase in Dianwei town, Jianshui, Yunnan Province. A field experiment with seven treatments of different planting patterns (the double line width ridge- drip irrigation under white film-mulching, the double line width ridge- drip irrigation, the double line width ridge- white film-mulching, the double line width ridge, the double line width ridge -straw cored, the double line width ridge-black film-mulching, conventional cultivation) was conducted during early spring potato growing period. Two potato varieties (‘Cooperation 88’ from Southwest China and ‘Qingshu No.9’ introduced from Potato Institute of Yunnan Agricultural University) were used to evaluate the effects of the planting patterns. The results showed that, varieties, planting patterns and their interaction had significantly different effects on the plant characteristics and yield of potato. The potato plant height and yield of the double line width ridge-black film-mulching were the lowest, 44.6 cm and 6.48 t/hm2 of ‘Cooperation 88’, and 41.4 cm and 7.89 t/hm2 of ‘Qingshu No.9’, respectively. The number of main stems of potato under conventional cultivation was the highest: 7.7 of ‘Cooperation 88’, and 6.9 of ‘Qingshu No.9’. For the same planting pattern, the plant height and stem diameter of the ‘Cooperation 88’ were higher than those of the ‘Qingshu No.9’, but there was no regularity between the two potato varieties in the number of main stems and yield characteristics. The yield of ‘Cooperation 88’ of the double line width ridge- white film-mulching was the highest, which was 20.69 t/hm2, and the yield of ‘Qingshu No.9’of the double line width ridge- drip irrigation under white film-mulching was the highest, which was 23.53 t/hm2. Therefore, the planting pattern of double line width ridge- white film mulching is the best planting mode of ‘Cooperation 88’potato, and the planting pattern of double line width ridge- drip irrigation under white film-mulching is the most appropriate planting mode of ‘Qingshu No.9’in Dianwei town, Jianshui, Yunnan province.

Key words: potato, planting patterns, Yunnan Province, plant properties, yield