Yawancin likitocin suna tunanin yin amfani da ban ruwa don kare amfanin gonakinsu daga fari. Farawa da ban ruwa ba shi da daraja ga kowace gona.
A lokacin rani mai bushewa. sprinkling iya ajiye amfanin gona. Koyaya, farawa ba ga kowane kamfani bane. Agrarheute ya zanta da kwararre kan harkokin ban ruwa Ekkehard Fricke daga Sashen Sashen Aikin Noma na Lower Saxony akan wannan batu. Fricke kuma ya lura cewa sha'awar batun ban ruwa ya karu bayan bushewar shekaru. Yawancin yankuna da a da ake samun isasshen ruwan sama su ne ƙara fama da farkon rani fari.
Haɓaka farashin saka hannun jari
A cikin 'yan shekarun nan, farashin gina bututun mai, kayan aiki da gina rijiyoyin sun karu. Sashen Aikin Noma na Lower Saxony yana ƙididdige farashin saka hannun jari tsakanin €2,500 zuwa € 5,000/ha don ban ruwa tare da kafaffen bututun ƙasa. Ana buƙatar rahoton hydrogeological sau da yawa don amincewa da janyewar ruwa. Akwai kuma farashin injin ban ruwa.
Lokacin yanke shawara, yakamata manoma suyi la'akari da jujjuyawar amfanin gona gaba ɗaya. Zuba jari yana da amfani musamman ga kayan lambu, dankali da sha'ir malting. A cikin jujjuyawar amfanin gona yakamata a sami amfanin gona da yawa waɗanda ke buƙatar ban ruwa. Zuba jarin yana da fa'ida ne kawai idan ɓangarorin gudummawar al'adu sun yi kyau gaba ɗaya duk da ban ruwa.
Sai dai dankali ko waken soya, kuɗin tsarin yayyafawa, gami da fasaha da layi, ba shi da wata fa'ida a cikin kowane amfanin gona na yau da kullun. Gwaje-gwaje na shekaru da yawa sun nuna hakan.
Ana amfani da injuna tare da sprinkles masu ƙarfi a cikin manyan kayan lambu masu girma, don kayan lambu na masana'antu da ciki noma mai kyau , musamman da dankali ko waken soya. Manyan yayyafa ruwa sune tsarin ban ruwa da muka yi amfani da su akai-akai har zuwa yanzu.
Amma a cikin waɗanne amfanin gona kuma daga yaushe kuma a ina kuma a cikin wane yanayi ne ƙarin ruwa ya dace? Dole ne kowane manajan gona ya yanke shawarar wannan tambaya ɗaya ɗaya don noma da tallan sa. Misali, gwaji na shekaru da yawa daga Baden-Württemberg ya ba da alkaluma kan bukatar ban ruwa na muhimman amfanin gona masussuka.
Gwaji kan noman noman rani a kudancin Jamus ya nuna cewa yayyafawa a gona yawanci ba shi da fa'ida ga amfanin gona na yau da kullun, saboda yana kashe kuɗi da yawa gabaɗaya. Dangane da sakamakon gwajin da aka yi daga Baden-Württemberg, a halin yanzu ana ba da shawarar zuwa wani ɗan ƙayyadadden ƙayyadaddun ƙima don saka hannun jari a cikin fasahar ban ruwa mai tsada kaɗai idan za a yi amfani da wannan kawai don noman noma ba tare da noman dankali, masara iri ko amfanin gona na musamman ba.
A gefe guda, tare da ƙarin amfani da fasahar da ake da su, ban ruwa tare da na'urorin tafi-da-gidanka yana da fa'ida musamman ga waken soya, masara hatsi da sha'ir ciyawa. Ribar riba tebur yana ba da ƙididdiga masu ƙarfi akan buƙatar ban ruwa na amfanin gona mai mahimmanci.
Misalin karatun
A matsakaita, Peas ya sami ƙarin yawan amfanin ƙasa na 22 dt/ha tsawon shekaru tare da 140 mm na ruwan ban ruwa. Ya ƙetare ƙarin yawan amfanin ƙasa na 18 dt/ha, wanda ya wajaba don rufe farashi masu canzawa, amma ba 34 dt/ha ba don dawo da mai canzawa tare da ƙayyadaddun farashi.
Don haka, kodayake ƙarin kudaden shiga da aka samu ya zarce farashin canji (+ 65 Yuro / ha), bai isa ya rufe madaidaicin tare da ƙayyadaddun farashi ba (- 241 euro/ha).
2. Lissafi
Teburin ya dogara ne akan gwaje-gwajen da aka yi tsakanin 2010 da 2015 a gonar gwajin Forchheim na Cibiyar Fasaha ta Aikin Gona (LTZ) Augustenberg, 117 m sama da matakin teku da 10.1 ° C na shekara-shekara. A cikin amfanin gona da aka yi niyya, an ƙaddara su da iri biyu kowanne
3. Wurin
Akwai matsakaicin hazo na shekara-shekara na 742 mm a kowace shekara. Yashi mai laushi yana da maki 24 zuwa 32 tare da ƙarfin filin amfani da kashi 13 cikin ɗari (nFk). An gudanar da aikin ban ruwa daga kashi 40 zuwa 45 na nFk. Ana kwatanta abin da ake samu na filayen da ba a yi ruwa ba tare da na filayen ban ruwa da ya fi dacewa.
4. Tsarin sprinkler
An ƙididdige ƙididdigewa a kan rijiyar da ba ta da zurfi mai tsawon mita 20 tare da famfon ɗin da injin dizal ke tuƙa da 35 kW a mashaya 12 da 50 m3/h da ha 10 kowace rijiya. Mai watsawa ta wayar hannu tare da 400 m yana da sprinkler guda ɗaya tare da faɗin 54 m tare da matsakaicin 100 mm da 48 m3 / h don yanki mai ban ruwa na 25 ha kowace shekara.
5. Da cancanta
An ƙididdige shi a kowace shekara bisa ga yawan amfanin gona da yawan ruwa da aka ƙayyade ta wannan hanyar don amfanin gona. Suna da darajar ban ruwa idan ƙarin kuɗin shiga aƙalla ya rufe ƙarin farashin ban ruwa.