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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (26): 1-7.doi: 10.11924/j.issn.1000-6850.casb2022-0761

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Different Planting Densities of Silage Maize: A Comparative Experiment

GAO Wenhui1(), YANG Liu2, ZHAO Lini3, ZHANG Honghong4, REN Bo5, DING Yuguo6, LI Xinchun7()   

  1. 1 Animal Health and Quarantine Workstation of Yuyang District, Yulin City, Shaanxi Province, Yulin, Shaanxi 719000
    2 Yulin Agricultural Reclamation Service Center of Shaanxi Province, Yulin, Shaanxi 719000
    3 Animal Disease Prevention and Control Center of Yuyang District, Yulin City, Shaanxi Province, Yulin, Shaanxi 719000
    4 Yulin Sheep Industry Service Center of Shaanxi Province, Yulin, Shaanxi 719000
    5 Grassland Workstation of Yuyang District, Yulin City, Shaanxi Province, Yulin, Shaanxi 719000
    6 Beijing Hejiayuan Agricultural Technology Co., LTD., Beijing 100107
    7 College of Life Science, Yulin University, Yulin, Shaanxi 719000
  • Received:2022-09-07 Revised:2022-12-25 Online:2023-09-15 Published:2023-09-11

Abstract:

In order to screen out the suitable planting density for two grain and forage silage maize varieties, ‘Jingang silage 50’and ‘Tieyan 53’, in Yuyang District, Yulin City, Shaanxi Province, 4 planting densities of 52500, 60000, 67500 and 75000 plants per hm2 were set in this experiment for the two varieties respectively. The agronomic characters, yield, nutrient content, ratio of leaf weight and ratio of panicle weight of each variety under different densities were compared. The results showed that, with the increase of the planting density, the total grass yield and total nutrient content of the two varieties showed an increasing trend, and reached the highest value at 75000 plants per hm2. Therefore, the suitable planting density is 75000 plants per hm2.

Key words: silage maize, planting density, agronomic characters, yield, quality