As a natural macromolecular organic compound,humic acid can promote plant growth.Water soluble humic acid fertilizers refer to liquid or solid water soluble fertilizers made by adding appropriate amounts of nitrogen,p...As a natural macromolecular organic compound,humic acid can promote plant growth.Water soluble humic acid fertilizers refer to liquid or solid water soluble fertilizers made by adding appropriate amounts of nitrogen,phosphorus,potassium macroelements or zinc,boron,iron,molybdenum,manganese,copper and other trace elements or organic matter,based on humic acid in the required proportions for plant growth.In order to verify the application effect of humic acid containing water soluble fertilizer produced by Tai’an Gold Land Chemical Co.,Ltd.,in tomato production in Daiyue District,Tai’an City,a fertilizer effect application experiment of humic acid containing water soluble fertilizer on tomato planting was specially carried out.The results showed that the water soluble fertilizer containing humic acid could obviously improve the agronomic characters of tomato;the yield was significantly increased;the effect of increasing the income of tomato growers was obvious.展开更多
[Objective] In order to reveal the effects of reducing the amount of novel nano-carbon humic acid water-retaining fertilizer(CSF) on soil microbial community structure and citrus growth. [Method]In this study,conventi...[Objective] In order to reveal the effects of reducing the amount of novel nano-carbon humic acid water-retaining fertilizer(CSF) on soil microbial community structure and citrus growth. [Method]In this study,conventional fertilization was as the control(KC1) in Wanzhou citrus orchard of Three Gorges Reservoir area. CSF reductions by 0%(KC2),10%(KC3),20%(KC4),30%(KC5) and 40%(KC6) were used to analyze the changes of soil bacterial community structure,citrus yield and quality. [Result]The results showed that the observed species,Shannon index,Chao1 index and PDwholetree of KC6 were higher than those of KC1,and were the same as KC2. The abundance of Xanthomonadaceae was the highest in KC5. Compared with KC1,the Xanthomonadaceae in KC3,KC4 and KC6 was significantly decreased,and the levels of Nitrosomonadaceae and Pseudomonasaceae were higher than that of KC1 after the treatment of KC6. Sphingomonas in different reduction treatments was lower than that of KC1,but Burkholderia and Pseudomonas were significantly higher than those of KC1. It was found that the similarity among treatments was small after bacterial community similarity clustering analysis,and citrus yield increased somewhat after CSF fertilization reduction.When CSF fertilization reduced by 30%,citrus yield increased by 4. 50%. When CSF fertilization reduced by 40%,citrus yield decreased by4. 14%. After CSF fertilization,citrus quality did not change significantly in CSF conventional fertilization and reduction of 10% and 40%,while significantly decreased in 20% and 30% of fertilization reduction. [Conclusion] CSF fertilization reduction changed the diversity of soil bacterial community structure and the yield and quality of citrus.展开更多
毛豆,又称菜用大豆(Glycine max L.),其味道鲜香营养价值高,是一种重要的豆科蔬菜。在减施化肥条件下,腐殖酸作为替代化肥的有机肥料的最佳选择之一。本试验探讨腐殖酸水溶肥对毛豆生长的影响,用早熟毛豆品种沪宁95-1毛豆作为试验材料,...毛豆,又称菜用大豆(Glycine max L.),其味道鲜香营养价值高,是一种重要的豆科蔬菜。在减施化肥条件下,腐殖酸作为替代化肥的有机肥料的最佳选择之一。本试验探讨腐殖酸水溶肥对毛豆生长的影响,用早熟毛豆品种沪宁95-1毛豆作为试验材料,设置3次重复,分析0 g/L(T0),1 g/L(T1),2 g/L(T2)腐殖酸水溶肥浓度下对毛豆的发芽率、株高、叶绿素等含量的影响。结果表明,T1处理的发芽率比对照增加了15.0%,T1和T2处理的株高分别比对照增加了12.8%和6.8%,其中,T1处理有显著性促进效果;T1处理单株荚数、单株荚重和百粒重均显著高于对照,分别比对照增加42.3%、48.6%和20.7%。叶绿素含量和对照相比分别增加了12.7%和6.7%;T1和T2处理均显著性地促进了可溶性糖含量,分别增加了35.3%和63.5%。结果显示,施加1 g/L浓度的腐殖酸水溶肥可以提高毛豆的发芽率、株高、叶绿素含量和可溶性糖含量。展开更多
文摘As a natural macromolecular organic compound,humic acid can promote plant growth.Water soluble humic acid fertilizers refer to liquid or solid water soluble fertilizers made by adding appropriate amounts of nitrogen,phosphorus,potassium macroelements or zinc,boron,iron,molybdenum,manganese,copper and other trace elements or organic matter,based on humic acid in the required proportions for plant growth.In order to verify the application effect of humic acid containing water soluble fertilizer produced by Tai’an Gold Land Chemical Co.,Ltd.,in tomato production in Daiyue District,Tai’an City,a fertilizer effect application experiment of humic acid containing water soluble fertilizer on tomato planting was specially carried out.The results showed that the water soluble fertilizer containing humic acid could obviously improve the agronomic characters of tomato;the yield was significantly increased;the effect of increasing the income of tomato growers was obvious.
基金Supported by the National Natural Science Foundation of China(41571303)Science and Technology Development Plan of Tai’an City,Shandong Province(2018HZ0115)
文摘[Objective] In order to reveal the effects of reducing the amount of novel nano-carbon humic acid water-retaining fertilizer(CSF) on soil microbial community structure and citrus growth. [Method]In this study,conventional fertilization was as the control(KC1) in Wanzhou citrus orchard of Three Gorges Reservoir area. CSF reductions by 0%(KC2),10%(KC3),20%(KC4),30%(KC5) and 40%(KC6) were used to analyze the changes of soil bacterial community structure,citrus yield and quality. [Result]The results showed that the observed species,Shannon index,Chao1 index and PDwholetree of KC6 were higher than those of KC1,and were the same as KC2. The abundance of Xanthomonadaceae was the highest in KC5. Compared with KC1,the Xanthomonadaceae in KC3,KC4 and KC6 was significantly decreased,and the levels of Nitrosomonadaceae and Pseudomonasaceae were higher than that of KC1 after the treatment of KC6. Sphingomonas in different reduction treatments was lower than that of KC1,but Burkholderia and Pseudomonas were significantly higher than those of KC1. It was found that the similarity among treatments was small after bacterial community similarity clustering analysis,and citrus yield increased somewhat after CSF fertilization reduction.When CSF fertilization reduced by 30%,citrus yield increased by 4. 50%. When CSF fertilization reduced by 40%,citrus yield decreased by4. 14%. After CSF fertilization,citrus quality did not change significantly in CSF conventional fertilization and reduction of 10% and 40%,while significantly decreased in 20% and 30% of fertilization reduction. [Conclusion] CSF fertilization reduction changed the diversity of soil bacterial community structure and the yield and quality of citrus.
