Farmer showing char used in animal and crop production (Matjaž Glavan)
1. Zeolite and bio-char are applied in arable fields. The technology is applied in flatland of Ljubljana with an average altitude of 350 m.a.s.l. The average annual precipitation is 1400 mm. The climate in the area is characterized by often stormy precipitation events and occasional droughts. Silty loam soils in the area are moderately deep to deep with medium soil organic matter. Area has good availability of surface water and groundwater of good drinking quality. The biodiversity in the region is medium and farmers practise basically a commercial agriculture with less than 10 percent of off-farm income. In general farm households are average in wealth and mainly mechanized/motorized. The size of the examined farm applying the technology is of medium scale with land partly owned by the land user and partly leased from the state. All farm households in the region have good access to good services and infrastructure.
2. Bio-char and zeolite as feed additive to pigs and chickens as part of a healthy diet. Animal excreta are spread over fields as part of organic manure (chicken - solid form and pigs - liquid form). Zeolite is spread also as individual element. All plant residues after harvest are left on the ground and incorporated during spring or fall by ploughing.
3. The purpose of technology is
(1) the improvement of the animal production efficiency,
(2) the absorption of nutrients for slower release,
(3) the absorption of toxic chemicals – lock,
(4) to retain more water in the soils,
(5) to prevent nutrients to be out-gassed from soil,
(6) to guarantee the vigour of soils - healthy microbial and fungi activity,
(7) and less unpleasant odours.
4. It is easy to establish and maintain the technology (see point 2. above) and produce multiple positive effects. Cost for establishment and maintenance are the same as no additional or special technology is needed. Main costs are related to buying the bio-char and zeolite. Cost related to feeding process are minor as bio-char and zeolite are added in to regular fodder mixture. Cost (working hours, fuel) can be more moderate when zeolite or bio-char is applied to fields as individual element.
5. Benefits are:
(1) the lower Nitrogen loss,
(2) the locking of toxic chemicals,
(3) healthy animals and plants going with better yields,
(4) and vital and healthier soils.
6a. Land users like:
(1) the avoiding of bad odours,
(2) and the small amount of work for visible results.
6b. Land users dislike the costs of bio-char and zeolite, which can be overcome by good market research.
ສະຖານທີ່: Municipality of Ljubljana, ສະໂນວາເນຍ
ຈໍານວນ ພື້ນທີ່ ທີ່ໃຊ້ ເຕັກໂນໂລຢີ ທີ່ໄດ້ວິເຄາະ: ພື້ນທີ່ດຽວ
ການແຜ່ກະຈາຍຂອງເຕັກໂນໂລຢີ: ແຜ່ຂະຫຍາຍຢ່າງໄວວາໃນພື້ນທີ່ (approx. < 0.1 ກິໂລແມັດ2 (10 ເຮັກຕາ))
ຢູ່ໃນເຂດປ່າສະຫງວນທີ່ບໍ?:
ວັນທີຂອງການປະຕິບັດ: 2015; ຕໍ່າກວ່າ 10 ປີ ຜ່ານມາ (ມາເຖິງປະຈຸບັນ)
ປະເພດຂອງການນໍາສະເໜີ
| ລະບຸ ປັດໃຈ ນໍາເຂົ້າ ໃນການຜະລີດ | ຫົວໜ່ວຍ | ປະລິມານ | ຕົ້ນທຶນ ຕໍ່ຫົວໜ່ວຍ (EUR) | ຕົ້ນທຶນທັງໝົດ ຂອງປັດໃຈຂາເຂົ້າ ໃນການຜະລິດ (EUR) | % ຂອງຕົ້ນທຶນທັງໝົດ ທີ່ຜູ້ນໍາໃຊ້ທີ່ດິນ ໃຊ້ຈ່າຍເອງ |
| ແຮງງານ | |||||
| Fodder preperation | person day | 10.0 | 50.0 | 500.0 | 100.0 |
| Spreading zeolite resp. manure | person day | 1.0 | 50.0 | 50.0 | 100.0 |
| ອຸປະກອນ | |||||
| hire slurry tank (6 m3) | ha | 20.0 | 15.0 | 300.0 | 100.0 |
| ຝຸ່ນ ແລະ ຢາຊີວະພາບ | |||||
| Bio-char for fodder | kg | 2000.0 | 0.4 | 800.0 | 100.0 |
| Zeolite for fodder | kg | 1500.0 | 0.138 | 207.0 | 100.0 |
| Zeolite at fields | kg | 3000.0 | 0.138 | 414.0 | 100.0 |
| ຕົ້ນທຶນທັງໝົດ ທີ່ໃຊ້ໃນການບໍາລຸງຮັກສາ ເຕັກໂນໂລຢີ | 2'271.0 | ||||
| ຄ່າໃຊ້ຈ່າຍທັງໝົດ ສຳລັບການບົວລະບັດຮກສາເຕັກໂນໂລຢີ ເປັນສະກຸນເງີນໂດລາ | 2'551.69 | ||||
Better soil moisture at periods of drought.
Small increase observed. However the technology was started two years ago and it is possible that increase could become bigger in the future.
This was the main purposes of the technology. Along with that they discover other benefits.
Farmer observed that soil moisture condition of the light sandy soils where zeolite was applied is better.
Better soil moisture at times of drought.
