ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (S1): 231-239. doi: 10.7668/hbnxb.20192464

Special Issue: Oil crops

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Dry Matter Accumulation and N,P,K Absorption and Utilization in High Oleic Acid Peanut

JIN Xinxin, WANG Jin, SONG Yahui, CHENG Zengshu, LI Yurong, SU Qiao   

  1. Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Crop Genetics and Breeding Laboratory of Hebei, Shijiazhuang 050035, China
  • Received:2021-06-25 Published:2021-12-28

Abstract: An experiment was conducted to study the regularity of nutrients absorption and utilization of high oleic acid peanut varieties, with ordinary peanut varieties as the control. In order to know N, P and K absorption and utilization of peanuts, dry matter accumulation and nutrient content and nutrient accumulation in different organs were tested at regular intervals. The results showed that the change pattern of dry matter accumulation in the whole plant and different organs of high oleic acid peanut was basically the same as that of ordinary peanut varieties. However, the root dry matter weight of high oleic acid peanuts were significantly higher than that of ordinary peanuts, while the dry matter weight of stem and leaf of high oleic acid peanut reversely. The whole plant dry matter of high oleic acid peanuts was 6.86% lower than that of common peanut. The trends of N, P and K absorption and accumulation for high oleic acid peanuts were the same as those in common peanuts. The accumulation of N and P increased linearly from seedling emergence to pod maturity, and decreased slightly at the final harvest. However, K reached the maximum value at the flowering stage(69 days after sowing)and then leveled off. The accumulations of N, P and K in roots for high oleic acid peanuts were significantly higher than that of common peanuts. The nutrient requirements of peanuts in the whole growth period were N, K, P, in turn. On 39 days after sowing, the average N, P and K requirements were 54.57, 12.43, 52.99 kg/ha, respectively. From 39 to 69 days after sowing, the values were 87.18, 22.62, 99.10 kg/ha, respectively. During 69-109 days after sowing, the values were 88.48, 33.49 kg/ha, respectively. Some nutrients in roots, stems and leaves were transferred to the peanut pods after florescence. The proportion of N transfer in peanut pods was 33.31%, P was only 17.43% and K was as high as 87.84%. In the actual production of peanut, fertilizer should be applied in a timely and reasonable manner according to the nutrient accumulation and distribution characteristics of different peanut varieties, so as to achieve the purpose of high production and efficiency for peanut.

Key words: Peanut, High oleic acid, Dry matter, NPK contents, Nutrient absorption and utilization

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Cite this article

JIN Xinxin, WANG Jin, SONG Yahui, CHENG Zengshu, LI Yurong, SU Qiao. Dry Matter Accumulation and N,P,K Absorption and Utilization in High Oleic Acid Peanut[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(S1): 231-239. doi: 10.7668/hbnxb.20192464.

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