池塘石灰需要量的测定和施加有机物对养殖塘水质、石灰石溶解性的影响
发布时间：2018-09-12 11:25
【摘要】：本试验为期8个月,分为两个阶段,第一阶段为基于酸碱滴定技术研发测定养殖塘生石灰需要量的方法;第二阶段为4种不同剂量有机肥,共12组池塘,每组设3个重复,分析不同剂量有机肥对养殖池塘水质、生石灰溶解性的影响和罗非鱼产量的影响。比较施加不同剂量有机肥和石灰石溶解性,在罗非鱼养殖塘中的效果,所研究结果可以为今后天然有机肥的开发利用提供理论依据,也为确定池塘底泥石灰需要量提供数据参考。主要研究结果如下:1、池塘生石灰需要量的测定1)通过钾离子-碳酸氢盐法所测定的鱼塘石灰总需要量比PB石灰需要测定法得到的石灰需量精确度度上高出9.6%到27.2%(平均为12.9%)。2)钾离子-碳酸氢盐法的测定过程中只包含两种化学试剂,而且不包含有毒化学试剂,也不需要用到机械摇床,pH酸度仪和较低的测定成本。2、施加有机物对养殖塘水质、生石灰溶解性的影响和罗非鱼生长的影响:1)不同剂量有机肥对水体温度、pH、导电率、叶绿素a、总硬度、硝酸盐氮(NO3-N)、总氨氮(TAN)含量影响不显著(p0.05),在养殖池塘中含量比较稳定;总碱度、钙-硬度、总磷(TP),可溶性活性磷(SRP)影响显著(p0.05),在不同有机肥剂量处理组和对照组中这些指标有显著性差异。2)验证了在土壤中施加有机肥增加二氧化碳的释放将会增加石灰石的溶解度进而提高总碱度。3)不同剂量有机肥对体重增加百分比,生长率(SGR),都没有显著影响(p0.05);不同剂量有机肥对体重增加量、总产量和净产量在数值上有明显差异,罗非鱼总产量从1073.25到1260.75千克/公顷,中有机肥剂量组获得最高净产量为1010千克/公顷。综合比较试验中提出的石灰需要量确定法和四种不同剂量有机肥对水质指标、石灰石溶解性和罗非鱼生长的影响,在考虑生态效益和经济效益的情况下,以中有机肥料处理组和依据钾离子-碳酸氢盐法来加入适宜剂量石灰石的组合可以提高总碱度,为最佳组合方案。
[Abstract]:The experiment lasted for 8 months and was divided into two stages. The first stage was based on acid-base titration technology to determine the requirement of quicklime in culture pond, the second stage was four different doses of organic fertilizer, 12 groups of ponds were divided into 12 groups with 3 replicates in each group. The effects of different doses of organic fertilizer on the water quality, the solubility of quicklime and the yield of tilapia were analyzed. The effects of different doses of organic fertilizer and limestone solubility on tilapia culture pond were compared. The results can provide theoretical basis for the development and utilization of natural organic fertilizer in the future. It also provides a data reference for determining the lime requirement of pond sediment. The main results are as follows: 1) the total lime requirement of fish ponds determined by potassium ion-bicarbonate method is 9.6% to 27.2% higher than that obtained by PB lime requirement method. The potassium ion-bicarbonate method contains only two chemical reagents, And it does not contain toxic chemical reagents, nor does it require a mechanical shaking table pH acidity meter and a lower cost of determination. The effects of different doses of organic fertilizer on water temperature pH, conductivity, chlorophyll a, total hardness, nitrate nitrogen (NO3-N) and total ammonia nitrogen (TAN) were not significant (p0.05). Total basicity, calcium hardness, The effect of total phosphorus (TP), soluble active phosphorus (SRP) was significant (p0. 05). These indexes were significantly different in different organic fertilizer treatment groups and control groups. It was proved that adding organic fertilizer to soil would increase the release of carbon dioxide from limestone. In turn, the solubility of organic fertilizer increased the percentage of body weight increased with different doses of organic fertilizer, and the total alkalinity of organic fertilizer was increased by 3. 3%. Growth rate (SGR),) had no significant effect on body weight gain, total yield and net yield of tilapia from 1073.25 to 1260.75 kg / ha. The maximum net yield of medium organic fertilizer group was 1010 kg / ha. The effects of lime requirement determination method and four different doses of organic fertilizer on water quality index, limestone solubility and tilapia growth were comprehensively compared, and ecological and economic benefits were considered. The combination of medium organic fertilizer treatment group and potassium ion-bicarbonate method can increase the total alkalinity and is the best combination scheme.
【学位授予单位】：上海海洋大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S959;S965.125
本文编号：2238861
[Abstract]:The experiment lasted for 8 months and was divided into two stages. The first stage was based on acid-base titration technology to determine the requirement of quicklime in culture pond, the second stage was four different doses of organic fertilizer, 12 groups of ponds were divided into 12 groups with 3 replicates in each group. The effects of different doses of organic fertilizer on the water quality, the solubility of quicklime and the yield of tilapia were analyzed. The effects of different doses of organic fertilizer and limestone solubility on tilapia culture pond were compared. The results can provide theoretical basis for the development and utilization of natural organic fertilizer in the future. It also provides a data reference for determining the lime requirement of pond sediment. The main results are as follows: 1) the total lime requirement of fish ponds determined by potassium ion-bicarbonate method is 9.6% to 27.2% higher than that obtained by PB lime requirement method. The potassium ion-bicarbonate method contains only two chemical reagents, And it does not contain toxic chemical reagents, nor does it require a mechanical shaking table pH acidity meter and a lower cost of determination. The effects of different doses of organic fertilizer on water temperature pH, conductivity, chlorophyll a, total hardness, nitrate nitrogen (NO3-N) and total ammonia nitrogen (TAN) were not significant (p0.05). Total basicity, calcium hardness, The effect of total phosphorus (TP), soluble active phosphorus (SRP) was significant (p0. 05). These indexes were significantly different in different organic fertilizer treatment groups and control groups. It was proved that adding organic fertilizer to soil would increase the release of carbon dioxide from limestone. In turn, the solubility of organic fertilizer increased the percentage of body weight increased with different doses of organic fertilizer, and the total alkalinity of organic fertilizer was increased by 3. 3%. Growth rate (SGR),) had no significant effect on body weight gain, total yield and net yield of tilapia from 1073.25 to 1260.75 kg / ha. The maximum net yield of medium organic fertilizer group was 1010 kg / ha. The effects of lime requirement determination method and four different doses of organic fertilizer on water quality index, limestone solubility and tilapia growth were comprehensively compared, and ecological and economic benefits were considered. The combination of medium organic fertilizer treatment group and potassium ion-bicarbonate method can increase the total alkalinity and is the best combination scheme.
【学位授予单位】：上海海洋大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S959;S965.125
【参考文献】
相关期刊论文 前2条
1 牛景彦;冯广鹏;;生石灰在水产养殖中的广泛应用[J];吉林农业;2016年16期
2 周莉华,李维炯,倪永珍;长期施用EM生物有机肥对冬小麦生产的影响[J];农业工程学报;2005年S1期
，本文编号：2238861
本文链接：https://www.wllwen.com/shoufeilunwen/zaizhiyanjiusheng/2238861.html
