ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (S1): 242-249. doi: 10.7668/hbnxb.20190425

Special Issue: Oil crops Soil fertilizer

• Resource and Environment·Plant Protection • Previous Articles     Next Articles

Effect of Topdressing Amount on the Growth and Yield of Peanut Under Film-mulched Drip Irrigation

LIU Zhaona, TIAN Shufei, GUO Runze, ZHANG Xiaojun, SI Tong, WANG Yuefu, ZHOU Xiaoxia   

  1. Qingdao Agricultural University, Dry Farming Key Laboratory of Shandong Province, Qingdao 266109, China
  • Received:2019-06-10 Published:2019-12-28

Abstract: In order to determining the optimum amount of topdressing for the growth of peanut can provide theoretical basis for high yield and efficient fertilization of peanut. In this study, the high-yield peanut variety Qinghua 7 was used as the material, in 2017-2018 for two consecutive years field experiment used technology of water and fertilizer, with no irrigation fertilizer treatment (CK1) and irrigation fertilizer not only (CK2) for comparison in the fancy stitch issue four fertilizer quantity processing, the effects of different top-dressing amount were studied under mulch drip irrigation on the growth and yield of peanut. The main stem height, lateral stem length, branching numbers, leaf and stem dry weight showed significantly increasing with the increase of topdressing in each stage, and reaching the maximum under 261 kg urea, 30 kg borax, and 221 kg calcium nitrate per hectare, and significantly higher than the treatment without topdressing. However, the number of total needles and underground needles, pods and dry weight increased gradually with the increase of topdressing, and reaching the maximum under 131 kg urea, 15 kg borax, and 132 kg calcium nitrate per hectare, then showed a downward trend with the increase of fertilizer. The stem and leaf growth of peanut under each fertilizer application treatment was significantly higher than that under no fertilizer application treatment, and the aboveground growth was significantly promoted. However, the growth of fruit needle and pod increased first and then decreased with the increase of fertilizer application amount, so proper amount of topdressing could not only promote the nutritional growth of peanut but also promote the reproductive growth, so as to increase the yield of peanut. However, excessive amount of topdressing could easily cause the excessive nutritional growth of peanut, which inhibit the reproductive growth, and cause the incoordination between the nutritional growth and reproductive growth of peanut, thus reducing the yield. The suitable amount of top dressing was 60 kg/ha of pure nitrogen, 15 kg/ha of borax and 45 kg/ha of calcium oxide per hectare.

Key words: Peanut, Under film-mulched drip irrigation, Flower-pegging stage, Topdressing amount, Growth and development, Yield

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Cite this article

LIU Zhaona, TIAN Shufei, GUO Runze, ZHANG Xiaojun, SI Tong, WANG Yuefu, ZHOU Xiaoxia. Effect of Topdressing Amount on the Growth and Yield of Peanut Under Film-mulched Drip Irrigation[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 242-249. doi: 10.7668/hbnxb.20190425.

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