Yayin da ake noman karas, wasu masu lambu suna samun karas da ke girma da muni, masu girma dabam da nakasa. Bayyanar karas mara kyau yana hade da dalilai na noma daban-daban.
Me ya sa karas girma mummuna
Rashin isasshen ƙasa da gazawar amfanin gona
Yana da mahimmanci a bi ka’idodin ƙasa. Ko da yake amfanin gona na kayan lambu ba ya buƙatar ƙasa mai yawa, idan an shuka kayan lambu a cikin ƙasa mai nauyi mai cike da yumbu da duwatsu, yuwuwar ƙaho ko karas mai laushi za su yi girma sosai. Dalilin haka shi ne buƙatar shuka a cikin tsarin tushen da haɓaka tushen amfanin gona don shawo kan matsalolin da aka samu a cikin tushen tsarin a cikin nau’i na hatimi.
Lokacin da aka girma karas a cikin ƙasa mai nauyi tare da tsari daban-daban, ci gaban kayan lambu yana canza alkibla, sakamakon haka karas ya kasance mai ban tsoro da damuwa.
Ƙasar da ba ta dace da samuwar ‘ya’yan itacen karas ba, ita ce takin da bai balaga ba ko humus mara girma. Gashi, karas masu ƙaho suna girma lokacin da aka ƙara dutsen farar ƙasa, ash tashi, potassium chloride a cikin ƙasa nan da nan kafin shuka, ko an yarda da wuce gona da iri.
Ana amfani da takin gargajiya a gaba, shekara guda kafin shuka karas, lokacin da ake girma precursors.
Bayyanar ‘ya’yan itacen karas mara kyau yana hana haɗuwa da ƙasa tare da yashi kogin, wanda ke taimakawa wajen bunkasa kayan lambu a cikin siffofi na yau da kullum. Har ila yau, suna la’akari da cewa ba a dasa karas nan da nan a cikin ƙasa maras kyau don guje wa rashin kyawun ‘ya’yan itace, a maimakon haka sai a jira har sai ƙasa ta nutse.
Rashin juyar da amfanin gona
Daga cikin abubuwan da ke haifar da lalacewar shuka da kuma mummunan bayyanar karas bayanin kula babu juyawa. Sabili da haka, ana ba da shawarar zaɓar yankin da aka shuka, inda tumatir, cucumbers, albasa ko tafarnuwa suka girma kafin shukar karas.
Lalacewa ga shuka
Karas ya ninka saboda fari
Daga cikin dalilan da karas ko mai gashi ke tsirowa, akwai keta mutuncin shukar, musamman tushensa, wanda ya hada da:
- lokacin da aka girma harbe harbe, kuma an dasa shuka tare da tushen tsarin da aka kafa, ya lalace lokacin da aka dasa kayan lambu zuwa wurin ci gaba da girma.
- lokacin da ƙasa ta bushe a matakin bayyanar farkon harbe ko kuma farkon ci gaban shuka, wanda ya haifar da mutuwar tushen tushen.
- lokacin da aka aiwatar da tsiron shukar karas ta hanyar keta tsarin ko tare da jinkiri, bayan fitowar takalmi na farko.
- lokacin da tushen tsarin ya lalace kwari, ciki har da karas da karas.
Rashin isasshen watering da wuce haddi danshi
Yawan danshi a cikin ƙasa yana haifar da bayyanar karas mara kyau. Wannan ya keta mutuncin ‘ya’yan itacen karas, kuma kayan lambu masu banƙyama sun fara fashe. Mafi sau da yawa, dalilin wannan shine girbin karas nan da nan bayan hanyoyin shayarwa ko kuma nan da nan bayan ruwan sama mai yawa.
Don hana karas daga karya kafin girbi, ana bada shawara don jira ‘yan kwanaki ba tare da ruwan sama ba.
Karas a wasu lokuta yana fashe a kasa. Dalilin wannan shine asarar danshi daga tubers a cikin tsarin samar da kayan lambu a farkon lokacin rani da kuma tarin danshi mai yawa a ƙarshen lokacin rani, lokacin da aka fara ruwan sama mai yawa.
Rashin danshi yana haifar da bayyanar karas mai gashi. Wannan shi ne saboda gaskiyar cewa shuka yana haɓaka tushen tushen don neman danshi.
Don kauce wa fatattaka da nakasar amfanin gona na tushen saboda wuce haddi danshi, ana ba da shawarar a bi ruwa na yau da kullun, da rayayye da yalwar ruwa a cikin ƙasa a cikin amfanin gona na tsiro, musamman a lokacin bushewa, da rage yawan shayarwa a lokacin damina.
Rashin abinci mai gina jiki
Mummunan karas kuma yana girma saboda rashin abinci mai gina jiki a lokacin girma da bunƙasa tushen amfanin gona. Daga cikin ka’idojin shuka kayan amfanin gona iri-iri don kada karas ya zama zafi ko m, lura:
- wajibi ne takin ƙasa tare da superphosphate yayin shirye-shiryen ƙasa a cikin kaka don dasa shuki kayan lambu,
- gabatar da hadaddun amfanin gona mai cike da taki, wanda za’a iya maye gurbinsu da superphosphate biyu da urea,
- takin shuke-shuke tare da mahadi dauke da potassium da phosphorus, farawa a tsakiyar lokacin rani,
- ƙara boron da manganese a cikin ƙasa a cikin mataki na samun yawan kayan lambu.
Samuwar saiwar da ba ta dace ba da dushewarsu na faruwa ne saboda rashin takin zamani.
Lokacin da ake amfani da rukunin taki, yana da mahimmanci a kiyaye ƙimar aikace-aikacen da aka bayar ta hanyar umarnin zuwa rukunin abinci mai gina jiki, saboda wuce haddi na wasu abubuwa, da ƙarancin su, yana haifar da canjin yanayin kayan lambu.
ƙarshe
A wasu lokuta, karas suna girma zuwa girman daban, ana iya lankwasa su ko kaho. Nakasar amfanin gona a lokacin aikin noma yana faruwa ne ta hanyar ƙasa mara kyau ga kayan lambu, rikicewar jujjuyawar amfanin gona, lalacewar injina ga tushen tsarin, rashin tsarin ban ruwa na shuka da rashin abinci mai gina jiki.
