Inona no ilain’ny zaridainao?
Amin’ny alalan’ny Fitaovan’ny Mpamboly dia hitanao avy hatrany, tsy misy taratasy fenoina ary tsy misy fiandrasana, hoe firy ny rano ilain’ny volinao, amin’ny dingam-pitomboana inona ianao ary fitaovana matianty inona no mety ho anao.
Tsy misy taratasy fenoina. Valiny miaraka amin’izay.
Taloha dia nifandray ianao ary niandry antso famaliana. Ankehitriny kosa dia mifidy ny karazam-bolinao ianao ary mahita miaraka amin’izay hoe firy ny rano ilaina, amin’ny dingam-pitomboana inona ianao ary fitaovana matianty inona no mifanaraka. Tsotra ho an’ny tanimboly kely, mandroso kokoa ho an’ny manam-pahaizana.
Kajio ao anatin’ny 30 segondra ny filanao rano
Tanimboly kely na fambolena raozy, trano fitiviana na tany malalaka: lazao anay amin’ny fomba fohy izay volenao ary ny fitaovana avy hatrany no manisa ny filanao rano, ny fandaharam-potoana fanondrahana, ny fitehirizan-drano ary ny andiam-piraisan’ny Zigbee tsara indrindra. Mifandimby amin’ny tsotra sy mandroso amin’ny kitika iray monja.
Miova ny filan-drano isaky ny dingam-pitomboana
Kely indrindra ny ranon’ny zavamaniry tanora, be indrindra rehefa mamony sy mamoa, ary mihena indray rehefa masaka. Tsindrio ny dingana iray ka jereo izay mitranga. Afindrao ho amin’ny mandroso ny brotom-panovana raha te hahafantatra ny kaody BBCH, ny koefisientan’ny voly ary ny modelim-pitomboana.
Loharano sy fototra ara-tsiansa
Ny fomba mandroso dia tsy mampiasa fitsipi-badika fotsiny fa fomba fanao eken’ny manam-pahaizana sy nodinihin’ny mpitsimbina. Etsy ambany dia ny loharano fototra ho an’ny dingan-pikajiana tsirairay. Amin’ny siansa, izay azo hita loharano ihany no manan-danja, ka azo jerena ny fitoviana matematika sy ny sandan’ny tabilao rehetra.
Ny filan-drano dia manaraka ny fenitry ny FAO: ny evapotranspirasion’ny voly ETc = ETo × Kc, miaraka amin’ny evapotranspirasiona fanondroana araka ny Penman-Monteith ary, ho an’i Holanda, ny fenitra Makkink an’ny KNMI. Ny fifandanjan-dranon’ny tany (TAW, RAW, elanelam-potoana fanondrahana) dia avy amin’ny torolalana FAO-56 mitovy. Ny sira dia manaraka ny modelin’i Maas sy Hoffman, ary ny fitambaran’ny hafanana dia an’i McMaster sy Wilhelm. Ho an’ny fitomboana ao anaty fitaratra dia miresaka momba ny asan’i Stanghellini izahay.
- Allen, R.G., Pereira, L.S., Raes, D. & Smith, M. (1998). Crop evapotranspiration: guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56. FAO, Rome. fao.org/4/x0490e. Loharanon’ny ETo (Eq. 6), ny fanitsiana Kc (Eq. 62/65), ny TAW/RAW (Eq. 82/83) ary ny Tabilao 19/22.
- Penman, H.L. (1948). Natural evaporation from open water, bare soil and grass. Proceedings of the Royal Society A, 193, 120-145. doi:10.1098/rspa.1948.0037
- Monteith, J.L. (1965). Evaporation and environment. Symposia of the Society for Experimental Biology, 19, 205-234.
- Makkink, G.F. (1957). Testing the Penman formula by means of lysimeters. Journal of the Institution of Water Engineers, 11, 277-288.
- De Bruin, H.A.R. (1987). From Penman to Makkink. In: Hooghart, J.C. (ed.), Evaporation and Weather, CHO-TNO Proceedings 39, 5-31. Mampiditra ny tsy miovan’ny KNMI c = 0.65.
- Hooghart, J.C. & Lablans, W.N. (eds.) (1988). Van Penman naar Makkink; een nieuwe berekeningswijze voor de klimatologische verdampingsgetallen. CHO-TNO Rapporten en Nota’s 19 (also KNMI TR-111), The Hague.
- Maas, E.V. & Hoffman, G.J. (1977). Crop salt tolerance: current assessment. Journal of the Irrigation and Drainage Division (ASCE), 103(IR2), 115-134. doi:10.1061/JRCEA4.0001137
- McMaster, G.S. & Wilhelm, W.W. (1997). Growing degree-days: one equation, two interpretations. Agricultural and Forest Meteorology, 87(4), 291-300. doi:10.1016/S0168-1923(97)00027-0
- Meier, U. (ed.) (2001). Growth stages of mono- and dicotyledonous plants. BBCH Monograph, 2nd edition. Federal Biological Research Centre for Agriculture and Forestry (BBA), Germany. Open access (2018): doi:10.5073/20180906-074619
- Steduto, P., Hsiao, T.C., Raes, D. & Fereres, E. (2009). AquaCrop, the FAO crop model to simulate yield response to water: I. Concepts and underlying principles. Agronomy Journal, 101(3), 426-437. doi:10.2134/agronj2008.0139s
- Allen, R.G. & Pereira, L.S. (2009). Estimating crop coefficients from fraction of ground cover and height. Irrigation Science, 28(1), 17-34. doi:10.1007/s00271-009-0182-z
- Stanghellini, C. (1987). Transpiration of greenhouse crops: an aid to climate management. PhD thesis, Wageningen Agricultural University. doi:10.18174/202121
- Katsoulas, N. & Stanghellini, C. (2019). Modelling crop transpiration in greenhouses: different models for different applications. Agronomy, 9(7), 392. doi:10.3390/agronomy9070392
- Ayers, R.S. & Westcot, D.W. (1985). Water quality for agriculture. FAO Irrigation and Drainage Paper 29 Rev.1, Rome. Mamerina ny tabilan’ny fahazakan-tsira nataon’i Maas sy Hoffman.
Inona ny Fitaovan’ny Mpamboly?
Andiam-pitaovana azo ampiharina izay mamaly avy hatrany ny fanontaniana momba ny fambolena, manomboka amin’ny mpanisa filan-drano. Tsy misy taratasy fenoina, fa valiny fotsiny.
Ahoana no fiasan’ny mpanisa rano?
Ampidiro ny antsipirihany vitsivitsy momba ny sahanao ary manombana ny filan-dranonao izy io ao anatin’ny 30 segondra eo ho eo, ampifanarahina amin’ny dingam-pitomboan’ny volinao.
Nahoana no miova ny filan-drano isaky ny dingam-pitomboana?
Miova ny fomba fampiasan’ny zavamaniry ny rano arakaraka ny fivoarany, ka raisin’ny mpanisa an-tsaina ny dingana mba hanomezana isa marina kokoa noho ny tanjona iray tsy miova.
Miorina amin’ny siansa marina ve ny torohevitra?
Eny. Ny fikajiana dia miorina amin’ny loharano eken’ny rehetra sy fototra ara-tsiansa, izay voatanisa eto amin’ny pejy.
Mila kaonty ve aho hampiasana ny fitaovana?
Tsia. Manome valiny miaraka amin’izay ny fitaovana ary tsy misy zavatra hisoratana anarana. Ho an’ny angon-drakitra amin’ny fotoana marina avy amin’ny toeranao manokana, jereo ny sensor.
Afaka manao izany ho azy ve ny FairGrow?
Eny. Miaraka amin’ny sensornao manokana, dia manara-maso ny toe-javatra amin’ny fotoana marina ny FairGrow ary manohy manome torohevitra anao rehefa miova ny zavatra. Jereo ny fomba fiasany.