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硝酸磷钾复合肥与氧化钙调理剂配施对蔬菜酸化土壤改良效果研究 被引量:7
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作者 李江文 周佳 +4 位作者 向华辉 韩珍 曾蔓漫 唐嘉鸿 魏朝富 《西南农业学报》 CSCD 北大核心 2020年第6期1221-1228,共8页
【目的】合理施肥并采用土壤改良剂是酸性土壤改良和化肥减量途径之一。在紫色土地区,通过研究硝酸磷钾复合肥配施氧化钙调理剂对蔬菜产量、养分吸收利用和土壤酸碱度的影响,从而确定酸化蔬菜地最优施肥方案。【方法】试验设置4个处理:... 【目的】合理施肥并采用土壤改良剂是酸性土壤改良和化肥减量途径之一。在紫色土地区,通过研究硝酸磷钾复合肥配施氧化钙调理剂对蔬菜产量、养分吸收利用和土壤酸碱度的影响,从而确定酸化蔬菜地最优施肥方案。【方法】试验设置4个处理:①常规施肥(CK);②天脊调理剂(CT);③天脊硝酸磷钾复合肥(CY);④天脊硝酸磷钾复合肥+调理剂(CYT),分别研究了不同施肥处理花菜和榨菜产量、生物量、养分吸收利用和土壤酸碱度的变化。【结果】与常规施肥相比,在施用天脊硝酸磷钾复合肥+调理剂(CYT)处理降低25%~33.3%的化肥施用量下,花菜和榨菜的产量和生物量明显增加(P<0.05),花菜商品中氮、磷、钾的累积吸收量分别提高了20.19%、28.38%和25.93%(P<0.05);氮、磷、钾的表观利用率分别提高了15.77%、18%和64.06%(P<0.05);榨菜商品中氮、磷、钾的累积吸收量分别提高了19.17%、28.82%和20.10%(P<0.05);氮、磷、钾的表观利用率分别提高了28.22%、8.78%和53%(P<0.05);此外,花菜和榨菜地天脊硝酸磷钾复合肥+调理剂(CYT)土壤pH值分别提高了0.7和0.3个单位;土壤交换性钙含量分别提高了28.9%和42.6%,榨菜地交换性酸含量降低了2.13%,土壤酸化得到了改善。【结论】硝酸磷钾复合肥配施氧化钙调理剂可提高蔬菜产量、肥料表观利用率、土壤的pH值和交换性钙含量,降低土壤交换性酸含量。在重庆紫色土地区硝酸磷钾复合肥配施氧化钙调理剂是降低农田化肥施用量和调节土壤酸化的一种有效施肥方式。 展开更多
关键词 硝酸磷钾复合肥 养分累积吸收量 酸化土壤 偏生产力 肥料利用效率 土壤改良
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硝酸磷钾添加肥料增效剂在茄子上的增产效果分析 被引量:3
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作者 乔红进 暴晓琳 +2 位作者 贾天清 乔雯 苗春淼 《农业技术与装备》 2015年第8期4-6,共3页
硝酸磷钾中含有硫、钙等中微量元素和稀土元素,对土壤中的有效营养平衡起着积极作用。通过对硝酸磷钾添加肥料增效剂试验的研究分析,探索出一条提高肥料利用率,减少肥料浪费,减少施用化肥对农田生态环境不利影响的有效途径。
关键词 硝酸磷钾 添加 增效剂 试验
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水稻施用硝酸磷钾复合肥与常规复合肥对比试验 被引量:3
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作者 李平 钟敏芝 周铭德 《现代农业科技》 2008年第21期184-184,186,共2页
通过水稻施用硝酸磷钾复合肥与常规复合肥对比试验结果表明:施用不同量的硝酸磷钾复合肥,水稻的农艺性状和产量明显不同;与施用常规复合肥对比,当硝酸磷钾复合肥的施用量为600kg/hm2时,水稻的产量最高为9580.5kg/hm2,经济效益最好。
关键词 水稻 硝酸磷钾复合肥 农艺性状 产量
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硝酸磷钾添加肥料增效剂的肥效试验分析
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作者 暴晓琳 贾天清 《种子科技》 2014年第12期33-34,共2页
通过对硝酸磷钾添加肥料增效剂试验的研究分析,探索出一条提高肥料利用率,减少肥料浪费,降低施用化肥对农田生态环境不利影响的有效途径。
关键词 硝酸磷钾 增效剂 肥效试验
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硝酸磷(钾)肥在烤烟生产上的应用研究
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作者 石拴成 马聪 +4 位作者 翟文汇 禹宗汉 吕合秋 薛超群 王建伟 《农学学报》 2011年第A02期5-7,31,共4页
通过田间试验示范,研究了硝酸磷钾肥对烤烟产量、品质及经济性状的影响。结果表明:与常规施用复合肥比较,硝酸磷(钾)肥提高烟叶的均价、亩产值和上等烟比例,改善烟叶质量,提高中、上部烟叶的钾含量,降低还原糖和总糖的含量,并且,降低投... 通过田间试验示范,研究了硝酸磷钾肥对烤烟产量、品质及经济性状的影响。结果表明:与常规施用复合肥比较,硝酸磷(钾)肥提高烟叶的均价、亩产值和上等烟比例,改善烟叶质量,提高中、上部烟叶的钾含量,降低还原糖和总糖的含量,并且,降低投入成本,经济效益十分显著。 展开更多
关键词 烤烟 硝酸磷() 施肥 产量 品质 研究
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Effects of Amino Acids Replacing Nitrate on Growth,Nitrate Accumulation,and Macroelement Concentrations in Pak-choi (Brassica chinensis L.) 被引量:12
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作者 WANG Hua-Jing WU Liang-Huan +3 位作者 WANG Min-Yan ZHU Yuan-Hong TAO Qin-Nan ZHANG Fu-Suo 《Pedosphere》 SCIE CAS CSCD 2007年第5期595-600,共6页
A hydroponic experiment was carried out to determine the influence of replacing 20% of nitrate-N in nutrient solutions with 20 individual amino acids on growth, nitrate accumulation, and concentrations of nitrogen (N... A hydroponic experiment was carried out to determine the influence of replacing 20% of nitrate-N in nutrient solutions with 20 individual amino acids on growth, nitrate accumulation, and concentrations of nitrogen (N), phosphorus (P), and potassium (K) in pak-choi (Brassica chinensis L.) shoots. When 20% of nitrate-N was replaced with arginine (Arg) compared to the full nitrate treatment, pak-choi shoot fresh and dry weights increased significantly (P ≤ 0.05), but when 20% of nitrate-N was replaced with alanine (Ala), valine (Val), leucine (Leu), isoleucine (Ile), proline (Pro), phenylalanine (Phe), methionine (Met), aspartic acid (Asp), glutamic acid (Glu), lysine (Lys), glycine (Gly), serine (Ser), threonine (Thr), cysteine (Cys), and tyrosine (Tyr), shoot fresh and dry weights decreased significantly (P ≤ 0.05). After replacing 20% of nitrate-N with asparagine (Asn) and glutamine (Gin), shoot fresh and dry weights were unaffected. Compared to the full nitrate treatment, amino acid replacement treatments, except for Cys, Gly, histidine (His), and Arg, significantly reduced (P ≤0.05) nitrate concentrations in plant shoots. Except for Cys, Leu, Pro, and Met, total N concentrations in plant tissues of the other amino acid treatments significantly increased (P ≤ 0.05). Amino acids also affected total P and K concentrations, but the effects differed depending on individual amino acids. To improve pak-choi shoot quality, Gln and Asn, due to their insignificant effects on pak-choi growth, their significant reduction in nitrate concentrations, and their increase in macroelement content in plants, may be used to partially replace nitrate-N. 展开更多
关键词 amino acids GROWTH N P and K nitrate accumulation pak-choi
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Crop Yield,N Uptake and Nitrates in a Fluvo-Aquic Soil Profile 被引量:16
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作者 ZHANGShu-Xiang LIXiu-Ying LIXiao-Ping YUANFeng-Ming YAOZhao-Hua SUNYong-Lin ZHANGFu-Dao 《Pedosphere》 SCIE CAS CSCD 2004年第1期131-136,共6页
The effects of different chemical fertilizer combinations (N, P and K) oncrop yield, N uptake and nitrate distribution and accumulation to a depth of 100 cm were studied ina cinnamon fluvo-aquic soil profile (Beijing)... The effects of different chemical fertilizer combinations (N, P and K) oncrop yield, N uptake and nitrate distribution and accumulation to a depth of 100 cm were studied ina cinnamon fluvo-aquic soil profile (Beijing) with a continuous winter wheat-summer maize croppingsystem for nine years. The experiment consisted of 7 treatments: no fertilizer control (CK); Nalone, N in combination with K (NK), P (NP), and P and K (NPK and N1PK); and P and K in combinationwithout N (PK). The rate of N was 150 kg ha^(-1) for the N treatments except Treatment N1PK withhigher N rate (195 kg ha^(-1)), and the rates of P (P_2O_5) and K (K2O) were 75 and 37.5 kg ha^(-1),respectively. The applications of N combined with P and K (NK, NP and NPK) resulted in higher cropyields than a single application of N. The yields followed the order: NPK > NP > N1PK > PK > NK > N> CK for winter wheat, and NPK > N1PK > NP > NK > N > PK > CK for summer maize. Supplement of N withP or K, or both P and K resulted in a higher average N uptake of the two crops, which was in adecreasing order NPK > NP > N1PK > NK > N > PK > CK. The combinations also increased apparent Nrecovery more than N alone and CK. The nitrate content in the profile was thus reduced more in thecombination treatments. The nitrate accumulation in the soil profiles followed the order: N > NK >N1PK > NPK > NP > CK > PK. Higher N uptake by the adequately fertilized crops (Treatment NPK)reduced nitrate accumulation in the profile and thus reduced nitrate leaching. The optimum N:P:Kratio was thus of paramount importance in increasing yields and N uptake of crops and reducingnitrate leaching losses. 展开更多
关键词 fertilizer combination N uptake nitrate distribution and accumulation YIELD
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