栽培方式与施肥水平对当归土壤水分和养分的影响
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国家自然科学基金项目(31201176、31960395)


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    摘要:

    通过田间试验,比较分析当归全膜双垄沟栽、全膜单垄垄栽和全膜平栽3种栽培方式与施0(CK)、600、750、900 kg/hm2复合肥4种不同施肥水平下不同生育期0~40 cm土层土壤含水量和养分含量的变化及当归产量。结果表明:除当归地上部分生长旺盛期0~20 cm土层土壤外,同时期同层土壤中全膜双垄沟栽+施肥750 kg/hm2处理的土壤含水量最高;同时期同层土壤中,全膜双垄沟栽+施肥750 kg/hm2处理的土壤铵态氮质量分数最高,全膜双垄沟栽+施肥900 kg/hm2处理的土壤速效磷和速效钾质量分数均为最高;全膜双垄沟栽+施肥750 kg/hm2处理的当归产量最高。栽培方式极显著影响当归地上部分生长旺盛期0~20 cm土层土壤含水量、当归地上部分生长旺盛期>20~40 cm土层土壤铵态氮质量分数及当归产量,显著影响当归根部膨大期0~40 cm土层土壤含水量和速效钾质量分数、当归地上部分生长旺盛期0~20 cm土层土壤铵态氮和速效磷质量分数、当归地上部分生长旺盛期>20~40 cm土层土壤速效钾质量分数及当归根部膨大期>20~40 cm土层土壤速效磷质量分数;施肥极显著或显著影响当归2个时期0~40 cm土层土壤铵态氮、速效磷和速效钾质量分数,且极显著影响当归产量。当归全膜双垄沟栽+施肥750 kg/hm2可有效增加0~40 cm土层土壤含水量和养分含量,提高当归产量,可在甘肃省当归道地产区推广。

    Abstract:

    Using field experiment, we did the comparative analysis of three cultivation methods(full film double ridge and furrow planting, full film single ridge planting and full film flat planting) with four fertilizer levels(0, 600, 750, 900 kg/hm2 compound fertilizer) to investigate the effects of cultivation and fertilization on soil moisture and nutrient content in the 0-40 cm soil layer and the yield of Angelica sinensis. The results showed except for the 0-20 cm soil layer during the vigorous growth of the above-ground part of Angelica sinensis, the soil moisture content in the same layer of soil during the same period was the highest in the treatment of full film double ridge and furrow planting+fertilization 750 kg/hm2. The ammonium nitrogen mass fraction in the 0-40 cm soil layer was the highest in the two periods of Angelica sinensis with full film double ridge and furrow planting+fertilization 750 kg/hm2. The mass fractions of available phosphorus and available potassium were the highest in the 0-40 cm soil layer with full film double ridge and furrow planting+fertilization 900 kg/hm2 during the two periods of Angelica sinensis. The yield of Angelica sinensis was the highest under the treatment of full film double ridge and furrow planting+fertilization 750 kg/hm2. The cultivation methods significantly affected the soil water content in the soil layer 0-20 cm above the ground, the ammonium nitrogen mass fraction in the soil layer >20-40 cm above the ground and the yield of Angelica sinensis. Fertilization had very significant or significant effect on soil nutrients of Angelica sinensis in two periods. Cultivation methods and film mulching greatly affected the yield of Angelica sinensis. Full film double ridge and furrow planting+fertilization 750 kg/hm2 could effectively increase the soil moisture content of 0-40 cm, promote nutrient absorption and improve the yield of Angelica sinensis. We found that the cultivation mode of full film double ridge and furrow planting+fertilization 750 kg/hm2 can be popularized in the Angelica sinensis thoroughbred production area of Gansu Province.

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巫蓉,邱黛玉,齐海敏,王思嘉,沈鹏瑞.栽培方式与施肥水平对当归土壤水分和养分的影响[J].湖南农业大学学报:自然科学版,2021,47(1):.

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  • 在线发布日期: 2021-01-29
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