Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (10): 9-14.doi: 10.11924/j.issn.1000-6850.casb2021-0480

Special Issue: 生物技术 油料作物

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The Difference of Yield and Nutrient Absorption of Soybean Varieties

JIANG Longgang1,2(), REN Yanli1,2, SHI Jianshuo1,2, GUO Li1,2, WANG Liying1,2(), LI Ruonan1,2, WANG Ping3   

  1. 1Institute of Agriculture Resources and Environment, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050051
    2Hebei Fertilizer Technology Innovation Center, Shijiazhuang 050051
    3Hebei Agricultural Technology Promotion General Station, Shijiazhuang 050000
  • Received:2021-05-08 Revised:2021-07-08 Online:2022-04-05 Published:2022-05-23
  • Contact: WANG Liying E-mail:1490768260@qq.com;wangliying5@163.com

Abstract:

At present, there are many soybean varieties, and different varieties have different suitable environment for growth. The selection of high-yield and high-quality summer soybean varieties is of significance to the development of soybean industry and the efficient utilization of soybean nutrients in Huang-Huai-Hai region. Field experiments were conducted by selecting 25 soybean varieties to analyze the difference of soybean yield and nutrient absorption in the main soybean producing area of Gaocheng in Hebei Province. The results showed that the yield of different soybean varieties varied greatly, ranging from 881-4169 kg/hm2, and the maximum yield difference was 3288 kg/hm2. There were great differences in nutrient uptake and utilization among different soybean varieties. Compared with medium-yielding and low-yielding varieties, the average grain uptake amount of N, P, K of high-yielding varieties increased by 43.9%, 39.4%, 41.2% and 126.0%, 124.9%, 120.8%, respectively. The average nutrient requirements of N, P and K per 100 kg grain of high-yielding and medium-yielding varieties were significantly reduced by 9.8%, 17.0%, 28.9% and 12.3%, 16.0%, 21.8% compared with low-yielding varieties, respectively. There were significant differences of yield and nutrient uptake and utilization among different soybean varieties, and the high-yielding soybean varieties had relatively strong ability of nutrient uptake and utilization. The selection of varieties suitable for local environment can increase soybean grain yield and improve nutrient uptake and utilization, and achieve the purpose of reducing fertilizer input and improving utilization efficiency.

Key words: soybean, variety, yield, nutrient absorption, difference

CLC Number: