Weeds

Weeds - shi ne mai shuka da cewa ciyayi mai tsanani hampered noma amfanin gona. Weeds ana iya karbe. Wadannan shuke-shuke da dafi ganye, su ne a kan dukkan nahiyoyi, amma babu fa'ida daga gare su.

Ba dukan weeds aka asali kafa. Alal misali, idan sunflowers, wanda ba su shafi weeds, showering su tsaba, sai wasu daga cikinsu za su germinate a cikin bazara, kuma zai ƙazantar da amfanin gona na horar da shuke-shuke. Mafi sau da yawa wannan hunturu amfanin gona, wanda ake dasa a wannan wuri bayan sunflower.

Weeds jinsunan wanda lambar ya riga ya wuce 'yan dubu, haddasa tsanani lalacewar harkokin noma, da kuma lahanin da ke da bambancin. Sun sha ruwa daga ƙasa a cikin manyan lambobi, su Tushen suna guba cikin ƙasa emit abubuwa masu cutarwa. Cinyewa da ruwa da yawa, suna bambanta da m girma, bi da bi, suna hana haske amfanin gona shuke-shuke, game da shi, da ragewa da yawan amfanin ƙasa. Wani lokacin ma da amfanin gona suna mutuwa.

Tsanani asara a girbi na gaban sako Tuddan irin filin bindweed Polygonum ko convolvulaceae. A karkashin su nauyi faru mazaunin amfanin gona, da kuma wannan yana nufin cewa tsaftacewa su ne wuya - da kuma wani ɓangare na amfanin gona ya zauna a cikin filin.

Wahala daga weeds (rarrafe ƙaya, shuka-ƙaya et al.) Kuma sweepers, gidan ya toshe ciyawa sassa daga gare ta, wadda take kaiwa zuwa rage cika. A wannan yanayin, da weeds iya rage ingancin da girbi. Wannan shi ne saboda da karuwa da hatsi da iri danshi idan ta shiga cikin girbi m sassa weeds.

Ba shi yiwuwa ba a ma maganar wani matsala. Wani lokaci a cikin fall hatsi tsaba m weeds, sa'an nan shi take kaiwa zuwa guba dabbobi, da kuma wani lokacin mutane. Weeds iya rage yawan amfanin ƙasa, kuma da sinadirai masu darajar, da kuma wani lokacin har zuwa kau da ƙasar noma forage ciyawa iri. Weeds da kai ga silting na tashoshi ga ban ruwa, a Bugu da kari, rage su kayan da aka samar. Kuma ko da a cikin zafi kakar, suka zama tushen gobara. Musamman m sako yalwa zama a wani abin da ake kira band wariya man fetur ko gas bututun.

Nau'in weeds aka yi a kan da dama sharudda: wuri, musamman haifuwa, rarraba, sabuntawa.

Kiwo nazarin halittu halaye, akwai uku kungiyoyin: perennial da kuma 2 maloletnika kungiyar (iri da kuma vegetative). The kungiyar hada maloletnikov iri shuka waddan yada da kuma sabuntawar via da iri, 'ya'yan itãcen marmari ko iri jam. Su ne duka shekara-shekara da kuma biennial.

Weeds-annuals kasu kashi subgroups. A tsarin cikin tsari na farkon spring, waxanda suke da manyan kwari for farkon spring amfanin gona, quinoa, daji hatsi, hemp. Domin da subgroup na marigayi spring, clogging gero da kuma rayayye hana ci gaban marigayi spring, suna weeds, sunansa foxtail, amaranth, da sauransu. A subgroup hunturu weeds yana da kyau jure hunturu plodonosya a shekara, babbar lalacewar da kungiyar na shuke-shuke sa hunturu amfanin gona. Domin da subgroup na wintering hada da makiyayi da jaka, Yakut filin.

Biennial weeds rayuwa na tsawon shekaru biyu: na farko a shekara ta rayuwa bayyana vegetative gabobin da iri, da kuma 'ya'yan itatuwa da tsire-tsire mutuwa a shekara ta biyu na rayuwa.

A raba rukuni ya kunshi weeds, kwari, suka za a iya dangana dodder, broomrape, toothed dabaran ko daga baya a manyan yi ƙaras-ƙaras. Dodder dora kansa a kara na alfalfa, Clover ko sauran shuka broomrape powered by da tushen da tumatir, alfalfa ko taba, da kuma na karshe biyu weedy tsire-tsire ne semiparasites.