浙江农业科学 ›› 2024, Vol. 65 ›› Issue (4): 848-853.DOI: 10.16178/j.issn.0528-9017.20221229

• 水稻 • 上一篇    下一篇

盐碱地直播水稻土壤改良剂筛选试验

朱家骝(), 冯卿   

  1. 舟山市农业科学研究院,浙江 舟山 316000
  • 收稿日期:2022-12-01 出版日期:2024-04-11 发布日期:2024-04-22
  • 作者简介:朱家骝(1978—),男,浙江宁海人,高级农艺师,本科,从事农业科研技术研究与推广工作,E-mail:jlzhu2001@sina.com
  • 基金资助:
    舟山市科技计划项目(2020C31018)

Screening experiment of soil conditioner for direct seeding rice in saline-alkali soil

ZHU Jialiu(), FENG Qing   

  1. Zhoushan Academy of Agricultural Sciences, Zhoushan 316000,Zhejiang
  • Received:2022-12-01 Online:2024-04-11 Published:2024-04-22

摘要:

为筛选盐碱地直播水稻适宜土壤改良剂,引进了市场上的6种改良剂,以水稻为研究对象,通过一季直播水稻种植,开展土壤改良剂对种植前后土壤化学性质、秧苗素质以及产量的影响试验。结果表明,土壤改良剂对降低土壤pH值、土壤水溶性含盐量有显著作用,1号地最高分别降低2.76%、0.90 g·kg-1,2号地分别降低2.78%、0.58 g·kg-1。土壤改良剂对提高盐碱地全氮、速效磷、速效钾、有机质含量作用不明显。土壤改良剂对提高水稻秧苗素质有明显促进作用,能够显著提高有效穗数及水稻产量,1号地、2号地最高增产分别为11.06%、6.44%。土壤改良剂在高盐度盐碱地上的增产效果好于低盐度盐碱地,其中试验所采用的盐碱消、北京康源、红都嘉业3种土壤改良剂增产效果较好,可以参考使用。

关键词: 盐碱地, 直播水稻, 土壤改良剂, 筛选

Abstract:

In order to screen the suitable soil conditioners for direct seeding rice in saline-alkali land, 6 marketed soil conditioners were introduced to study the effect of soil improvers on soil chemical properties, seedling quality and yield before and after planting through one season of direct seeding rice planting. The results showed that soil conditioners had significant effects on reducing soil pH and soil water-soluble salinity, with the highest reduction of 2.76% and 0.9 g·kg-1 in Site 1, and 2.78% and 0.58 g·kg-1 in Site 2, respectively. Soil conditioners have no significant effect on increasing the content of total nitrogen, available phosphorus, available potassium and organic matter in saline-alkali land. Soil conditioners significantly promoted the quality of rice seedlings and could significantly increase the number of effective spikes and rice yield, with the highest yield increase of 11.06% and 6.44% in Site 1 and 2, respectively.The yield increase effect of soil conditioners on high salinity saline land was better than that on low salinity saline land, among which the three soil conditioners used in the experiment, Yan Jian Xiao, Beijing Kang Yuan and Hong Du Jia Ye, have better yield increase effect and can be used for reference.

Key words: saline-alkali soil, direct seeding rice, soil conditioner, screening

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