肥沙混施对盐碱地冬小麦耗水特性与生长的影响
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公益性行业(农业)科研专项(201503117)、国家自然科学基金项目(51790534)和国家重点研发计划项目(2018YFD0300505-3)


Effects of Biological Organic Fertilizer and Yellow River Sediment Mixture on Water Consumption and Growth of Winter Wheat in Saline-Alkali Land
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    摘要:

    为解析春限一水条件下盐碱地改良措施对小麦耗水和产量调控作用,于2015—2018年连续3个冬小麦生长季,设置耕层掺黄河泥沙(SS)、配施生物有机肥(FF)和掺黄河泥沙配施生物有机肥(SF)3个处理,以不作处理为对照(CK),研究不同处理下农田土壤水分变化和冬小麦干物质积累规律。结果表明:连续3年产量水平为3317.77~5449.52kg/hm2,各处理间以SF处理的籽粒产量最高,该处理与CK相比,籽粒产量提高35%~51%;总耗水量变幅为352.85~394.89mm,不同处理间总耗水量均以CK最低,以SF处理最高(361.81~394.89mm);农田水分利用效率变幅为9.01~13.96kg/(hm2·mm),以SF处理最高(12.02~13.96kg/(hm2·mm)),比CK高33%~48%,其次为FF处理和SS处理,分别比CK高9%~32%、9%~18%。SS或FF处理可增加冬小麦拔节前0~200cm土层贮水量,增大拔节至成熟阶段的耗水量及其占总耗水量的比例,促进冬小麦对土壤贮水和深层土壤水分的利用,最终提高冬小麦的生物量和籽粒产量。冬小麦籽粒产量与干物质积累量、总穗粒数呈显著正相关;水分利用效率与冬小麦耗水量、产量呈二次曲线关系。在本研究条件下,随着籽粒产量提高,水分利用效率快速增加;而随耗水量增加,各处理间水分利用效率增减表现不同。综合考虑产量、收获指数和水分利用效率,确定掺黄河泥沙配施生物有机肥处理(SF)是本研究条件下的最佳处理。

    Abstract:

    Aiming to analyze the effects of saline-alkali land improvement measures on water consumption and yield control of wheat under the condition of spring water limitation, and provide theoretical basis for promoting the increase of winter wheat yield and the improvement of water use efficiency in saline-alkali wheat areas. The positioning monitoring test was adopted in the three consecutive wheat growing seasons from 2015 to 2018. Four processing was set, respectively was with biological organic fertilizer (FF), mixed with Yellow River sediment (SS) and the biological organic fertilizer and Yellow River sediment mixed (SF), and CK treatment as control. The results showed that the annual yield was 3317.77~5449.52kg/hm2 for three consecutive years, and SF treatment with Yellow River sediment and biological organic fertilizer had the highest grain yield. Compared with the control treatment, SF treatment increased the grain yield by 35%~51%. The variation amplitude of total water consumption was 352.85~394.89mm, and the total water consumption between different treatments was the lowest in CK (352.85~386.17mm). The water use efficiency of each treatment was 9.01~13.96kg/(hm2·mm).SF (12.02~13.96kg/(hm2·mm)) had the highest water use efficiency, which was higher than that of CK by 33%~48%, followed by FF (organic fertilizer) and SS (Yellow River sediment), which were respectively higher than that of control by 9%~32% and 9%~18%. Mixing Yellow River sediment (SS) or biological organic fertilizer mixing (FF) treatment can increase water storage in soil layer 0~200cm before jointing, increase water consumption from jointing to maturity stage and its proportion in total water consumption, promote the utilization of water storage in soil and deep soil water of winter wheat, and finally improve biomass and grain yield of winter wheat. The grain yield of winter wheat was positively correlated with dry matter accumulation and grain number per panicle. WUE had a conic relation with water consumption and yield of winter wheat. With the increase of grain yield, WUE was increased rapidly. Under this research conditions, with the increase of water consumption, trend of WUE was different among different treatments. Taking yield, harvest index and water use efficiency into consideration, mixing Yellow River sediment and applying biological organic fertilizer (SF) was the best treatment under the conditions of this study.

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李晓爽,党红凯,宋妮,申孝军,高阳,孙景生.肥沙混施对盐碱地冬小麦耗水特性与生长的影响[J].农业机械学报,2020,51(5):272-284.

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  • 收稿日期:2019-11-05
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  • 在线发布日期: 2020-05-10
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