| 英文摘要 |
Pingtung county is a city lives on traditional agriculture. There are a large number of pig farms, cattle farms, chicken farms and duck farms in this place. According to the “Investigation report of the number of pigs (2019.05) “published by Council of agriculture, executive Yuan”, there were 1,647 pig livestock farms in Pingtung County, and the number of pigs up to 1,237,631, which was only less than Yunlin county in Taiwan. And most of them was in Donggang river and Kaoping River. In case of the livestock sewage didn't treat well, it will become a huge problem in our life (such like living environment getting worse, influence of drinking water etc.) ,so Pingtung County promotes the policy of “Biogas slurry as Farmland Fertilizer Plan” to solve the large number of livestock sewage problem since 2016.
In 2019, Pingtung County carried out a project of “Biogas slurry as Farmland Fertilizer Plan and Execution Plan of Rivers Water Pollution Remediation and Reducing Total Maximum Daily Load Strategy in PingTung County, 2019”`, and the results as following statements.
1. Overview of animal husbandry in Pingtung County
According to the “Investigation report of the number of pigs (2019.05) “published by Council of agriculture, executive Yuan”, there were 1,647 pig livestock farms in Pingtung County, and the number of pigs up to 1,237,631, which was only less than Yunlin county in Taiwan. After analysis, Pig farming mainly distributed in Wandan Township(143,308, 11.61%), Yanpu Township(142,091, 11.48%), Jiuru Township(141,362, 11.42%), Neipu Township(99,386, 8.03%) and Changzhi Township(85,603, 6.92%);Cattle farming mainly distributed in Wandan Township(16,440, 59.93%), Yanpu Township(2,730, 9.95%), Ligang Township(2,089, 7.62%), Pingtung City(1,791, 6.53%) and Jiuru Township(1,693, 6.17%).
The amount of pig livestock farms, whose number of pigs is greater than 1,000, have 291 pig livestock farms, 752,420 pigs and 19,699 CMD sewage discharged. The amount of cattle livestock farms, whose number of cattle is greater than 100, have 52 cattle livestock farms, 8,260 cattles and1,460 CMD sewage discharged.
2. The execution plan of rivers rater pollution remediation and reducing total maximum daily load strategy
The execution plan of rivers rater pollution remediation and reducing total maximum daily load strategy in Pingtung County, 2019 will submit in December 2019, and expecting to score 88.3 points.
3. Promotion effective of “Biogas slurry as Farmland Fertilizer Plan”
We found that Jiouru bridge and Changnon bridge stations(the EPA's key monitoring station in Kaoping River) have improved the water quality gradually by promotion of the “Biogas slurry as Farmland Fertilizer Plam”, but not at Cinsheda Bridge(the EPA's key monitoring station in Donggang river).The mainly reason was there are 160 livestock farms located at upper river of Cinsheda Bridge, but only 23 livestock farms submit the "Biogas slurry as Farmland Fertilizer Plan". So we should enhance promoting “Biogas slurry as Farmland Fertilizer Plan” at upper river of Cinsheda Bridge in next year.
4. The promotion of “Biogas slurry as Farmland Fertilizer Plan"
Inviting experts to conduct the publicity conference. A total of publicity conferences is 27 times and 1,339 people attended. (22 times requested in the contract)
For promoting the “Biogas slurry as Farmland Fertilizer Plan ", there were 33 press released.
There is a FB group named “D賽變黃金幫” and a Line group named “屏東異味即時通報” to post some messages about “Biogas slurry as Farmland Fertilizer Plan”.
5. Key object inspection
Priority to inspect the pig livestock farms whose number of pigs is greater than 1,000 and there is no intention to participate the “Piggery Waste and Digestate as Farmland Fertilizer Policy". There had been collecting 60 samples. (60 sampling requested in the contract)
6. The tutorship of “Biogas slurry as Farmland Fertilizer Plan "
We have completed over 250 livestock farms’ tutorship, and assisting to submit 81 cases of “Biogas slurry as Farmland Fertilizer Plan"(76 cases requested in the contract) including 6 cases had been approved in this project.
7. Monitoring report for “Biogas slurry as Farmland Fertilizer Plan"
There have been submit 63 cases of biogas slurry as farmland fertilizer plan monitoring report(60 cases requested in the contract), including 157 water sampling and 63 soil sampling.
8. Helping Farmers modifying “Biogas slurry as Farmland Fertilizer Plan "
We have assisted 6 cases of “Biogas slurry as Farmland Fertilizer Plan " modifying. (5 cases requested in the contract)
9. Exemplary Piggery Waste and Digestate watering
We have assisted to transport 1,020 ton of Biogas slurry (960 ton requested in the contract) for farmers in Pingtung county, and most of them think biogas slurry is good for crops and no other bad effect so far.
10. The tutorship of “Wastewater Management Plan”
For promoting of “Wastewater Management Plan”, there have been completed 418 live livestock farms’ tutorship, and 50 livestock farms approved, 179 under review, 148 in the progress of improving, 36 abandoned, 5 change raising species.
11. Cooperate with agricultural technology experts to conduct field trials
Due to the farmers had no confidence about the policy, Pingtung county government invited Y. H. Lin who is an associate professor in National Pingtung University of Science and Technology to conduct biogas slurry as farmland fertilizer field trials like mango, guava, lotus, date, lemon, coffee, dragon fruit, betel nut, banana and so on.
The test results show that:
(1) There is no obvious odor in the Biogas slurry application process.
(2) Continuously applied Biogas slurry to crop, the nitrogen content of soil was increased significantly.
Professor Lin reminded farmers that the application of biogas slurry has positive effects on both the plants and the soil, and no need to worry about Cu, Zn remain in plants and the soil.
However, biogas slurry as farmland fertilizer may cause the problem about lack of phosphorus and potassium fertilizer during flowering and fruiting period, farmers should add properly.
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