浙江农业科学

浙江农业科学 ›› 2025, Vol. 66 ›› Issue (5): 1104-1108.DOI: 10.16178/j.issn.0528-9017.20240015

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结球甘蓝春丰007对氮磷钾铁铜锰等元素吸收利用特点分析

王冬群1(), 成美玲2, 王立1   

  1. 1.慈溪市农业监测中心,浙江 慈溪 315300
    2.慈溪市周巷镇人民政府,浙江 慈溪 315324
  • 收稿日期:2024-01-04 出版日期:2025-05-11 发布日期:2025-05-20
  • 作者简介:王冬群(1976—),男,浙江慈溪人,农业技术推广研究员,硕士,主要从事农产品质量安全监测与土肥技术推广工作,E-mail:8479950@qq.com。

Absorption characteristics of N,P, K,Fe,Cu and Mn in cabbage Chunfeng 007

WANG Dongqun1(), CHENG Meiling2, WANG Li1   

  1. 1. Agricultural Monitoring Center of Cixi City, Cixi 315300, Zhejiang
    2. People's Government of Zhouxiang Town, Cixi City, Cixi 315324, Zhejiang
  • Received:2024-01-04 Online:2025-05-11 Published:2025-05-20

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摘要：

通过缺素试验和不同水平施肥量比较试验,研究结球甘蓝春丰007对氮磷钾铁铜锰等元素吸收利用特点,为结球甘蓝化肥减量增效和科学施肥提供依据。缺素试验发现,在土壤中有较高的有效磷和速效钾含量时,再施磷肥或钾肥并不能提高结球甘蓝产量,反而会减产;施氮肥能提高结球甘蓝产量。从不同施肥水平来看,呈现出施肥越多结球甘蓝产量越高的特点,但增产的幅度逐渐降低。当结球甘蓝目标产量为66 277 kg·hm-2时,施入N、P2O5、K2O分别为216、216、216 kg·hm-2,就可保持当季土壤中养分平衡。建议调整结球甘蓝施肥配比,适当减少磷肥、钾肥用量,N、P2O5、K2O三者吸收量比例为22.28∶10.00∶31.04。本试验中结球甘蓝春丰007对铁、铜和锰等元素最大吸收量分别达到了13.83 kg·hm-2、26.72 g·hm-2、365.28 g·hm-2,N、P2O5、K2O肥料利用率分别为17.25%、-5.03%、-8.13%。

关键词: 结球甘蓝, 施肥量, 产量, N, P2O5, K2O

Abstract:

Through nutrient deficiency experiments and comparative experiments of different levels of fertilizer application, the absorption and utilization characteristics of N,P, K,Fe,Cu and Mn in cabbage Chunfeng 007 were studied, providing a basis for fertilizer reduction and efficiency increase and scientific fertilization in cabbage. The nutrient deficiency experiment found that when there is a high content of available phosphorus and available potassium in the soil, applying P2O5 or K2O fertilizer again can not increase the yield of cabbage, but instead will reduce it; Applying N fertilizer can increase the yield of cabbage. From the perspective of different fertilization levels, the more fertilizer applied, the higher the yield of cabbage, but the magnitude of yield increase gradually decreases. When the target yield of cabbage was 66 277 kg·hm-2, the application of N, P2O5, and K2O was 216, 216, and 216 kg·hm-2, respectively, to maintain nutrient balance in the soil during the season. It was suggested to adjust the fertilization ratio for cabbage and reduce the amount of phosphorus and potassium fertilizers appropriately. The absorption ratio of N, P2O5, and K2O should be 22.28∶10.00∶31.04. In this experiment, the maximum absorption of Fe,Cu, and Mn elements of cabbage Chunfeng 007 reached 13.83 kg·hm-2, 26.72 g·hm-2, and 365.28 g·hm-2, respectively. The N, P2O5, and K2O fertilizer utilization rates were 17.25%, -5.03%, and -8.13%, respectively.

Key words: cabbage, fertilizer application, yield, N, P2O5, K2O

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