Takin da ke ciyar da tsire-tsire da ƙasa yana bayar da matsakaita mafi ƙarancin kashi 20% fiye da sauran dabarun hadi. Wannan ya tabbata daga shekaru ashirin na bincike akan nau'ikan takin zamani.
Binciken binciken 'Taki a matsayin Dama', wanda yake gudana tsawon shekaru ashirin, kuma an kafa shi a cikin 1999 ta masu bincike a Cibiyar Louis Bolk a matsayin wani ɓangare na haɗin gwiwar jama'a da masu zaman kansu 'terarfafa ƙasa mai kyau', ya mai da hankali kan tasirin dabaru guda tara na hadi kan ingancin kasa, yawan amfanin gona, lear nitrogen da daidaita ma'adinai. A waccan binciken, an yi amfani da nau'ikan taki daban-daban: hadawa tare da NPK da slurry wanda ke mai da hankali kan ci gaban amfanin gona, hadi da takin zamani iri daban-daban wadanda galibi ke da karfi a kasar da kuma yin takin da taki mai karko, taki kaza da takin a hade slurry niyya ƙasa da shuka.
Ana samarwa
The rahoton bincike ya nuna cewa, bayan shekaru ashirin, sabbin dabarun hadi na zamani tare da taki kaza, tsayayyen taki da VGF + slurry wadanda ke da niyyar kasar gona da shuka, musamman, sun samar da mafi yawan amfanin. Yawan wadatar wadannan dabarun hadi ya haura na sauran dabarun hadi kashi 20%. Lokacin da takin zamani tare da takin kore kawai - wanda yake ciyar da ƙasa - ko taki (NPK) - wanda ke ciyar da tsire-tsire - amfanin gonar ya nuna ƙasa mai kaifi tsawon shekaru ashirin.
Nitrogen leaching
Har ila yau, masu binciken sun kalli lekenjin nitrogen da daidaita ma'aunin, ta yin amfani da samfurin nitrogen na NDICEA. An yi lissafi na lokacin 2008 - 2019. Wadannan lissafin sun nuna cewa leaching nitrogen ya kasance mafi girma tare da hadi tare da taki barga da VGF + Drijmest, yayin da leaching nitrogen yayi kasa da hadi tare da takin.
Kodayake takin zamani daban ya banbanta wajen samarda yawan sinadarin nitrogen, phosphate da potash, akwai alamun akwai dan banbanci wajen hakar wadannan ma'adanai ta hanyar shuka. Nitarin nitrogen ba koyaushe yake haifar da yawan amfanin ƙasa ba, amma yana ƙaruwa da damar nitrogen leaching.Rahoton bincike na shekaru 20 na Taki a matsayin Dama