| 中国北方甜菜土壤速效钾丰缺指标与适宜施钾量研究 |
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| 引用本文： | 孙洪仁,张吉萍,吕玉才,郑笑冉,张利霞,宋琼,林柏森.中国北方甜菜土壤速效钾丰缺指标与适宜施钾量研究[J].中国糖料,2020(1):45-49. |
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| 作者姓名： | 孙洪仁 张吉萍 吕玉才 郑笑冉 张利霞 宋琼 林柏森 |
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| 作者单位： | 中国农业大学草业科学与技术学院;北京六凯农业科技有限公司;凯风新农（北京）科技有限公司;赤峰众益糖业有限公司;呼伦贝尔包商银行;赤峰绿璐种业有限公司 |
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| 基金项目： | 国家现代农业产业技术体系建设项目(CARS-35)资助 |
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| 摘 要： | 为了给甜菜测土施肥提供科学依据,采用零散实验数据整合法、缺素处理相对产量与土壤养分含量回归方程法和“养分平衡—地力差减法”确定适宜施肥量新应用公式,开展了我国北方甜菜土壤速效钾丰缺指标与适宜施钾量研究。结果表明,中国北方甜菜土壤速效钾(NH4OAc-K)第1~5级丰缺指标依次为>409、224~409、123~224、68~123和≤68 mg/kg。当钾肥当季利用率40%、目标产量30~90 t/hm^2时,土壤速效钾丰缺级别第1~5级的适宜施钾量范围依次为0~0、41~124、83~248、124~371和165~495 kg/hm^2。
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| 关 键 词： | 甜菜 中国北方 测土施肥 土壤速效钾 丰缺指标 钾肥 施肥量 |
Study on Abundance-deficiency Index of Soil Available K and Appropriate Potassium Application Rates for Sugar Beet in the North of China |
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| Sun Hongren,Zhang Jiping,LüYucai,Zheng Xiaoran,Zhang Lixia,Song Qiong,Lin Baisen.Study on Abundance-deficiency Index of Soil Available K and Appropriate Potassium Application Rates for Sugar Beet in the North of China[J].Sugar Crops of China,2020(1):45-49. |
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| Authors: | Sun Hongren Zhang Jiping LüYucai Zheng Xiaoran Zhang Lixia Song Qiong Lin Baisen |
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| Institution: | (College of Grassland Science and Technology,China Agricultural University,Beijing 100193;Beijing Liukai Agriculture Sci.&Tech Co.,Ltd.,Beijing 100095;Beijing Cofine Sci.&Tech Co.,Ltd.,Beijing 100095;Chifeng Zhongyi Sugar Industry Co.,Ltd.,Chifeng,Inner Mongolia 024000;Hulunbuir Baoshang Bank,Hailar,Inner Mongolia 021000;Chifeng Lülu Seed Industry Co.,Ltd.,Chifeng,Inner Mongolia 024000) |
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| Abstract: | To provide a scientific basis for sugar beet fertilizing optimized by soil testing,the abundancedeficiency index(ADI)of soil available K(SAK)and the appropriate potassium application rates(APAR)for sugar beet in the north of China were studied.The methods of scattered experimental data integration,regression equation between the relative yield of no potash treatment and the SAK content,and the new applied formula based on“nutrient balance and projected yield minus soil fertility yield”for determining the appropriate fertilizer application rates were employed.The results showed that the ADI of SAK(NH4OAc-K)for sugar beet in the north of China from the first to fifth level were>409,224–409,123–224,68–123 and≤68 mg/kg,respectively.When the potash use efficiency in current season was 40%,and the projected yield of sugar beet was 30-90 t/hm^2,and the ranges of APAR from the first to fourth level soil were 0–0,41–124,83–248,124–371 and 165–495 kg/hm^2,respectively. |
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| Keywords: | sugar beet the north of China soil testing and fertilizer recommendation soil available K nutrient abundance-deficiency index potash fertilizer fertilizer application rate |
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