Ruwan Bordeaux shine maganin jan karfe sulfate a cikin madarar lemun tsami. Sky blue ruwa. An fi amfani dashi azaman foliar fungicide. Hakanan yana sarrafa kasancewar ƙwayoyin cuta kuma yana korar kwari. Bafaranshe masanin ilimin botanist P. Millard (1838-1902) ne ya fara ƙirƙira wannan cakuda don kare gonakin inabi daga m. Plasmopara viticola.
Recipe
Don shirya wani magani tare da maida hankali na 1% a cikin wani karamin adadin ruwa, 100 g na quicklime lumps an slaked da kuma 5 lita na ruwa an kara zuwa gare shi. A cikin wani tasa (ba karfe ba!), Narke 100 g na jan karfe sulfate a cikin karamin adadin ruwan zafi. Ana kuma ƙara 5 L na ruwa zuwa wannan maganin. Sa’an nan kuma an zuba maganin sulfate na jan karfe a cikin madarar lemun tsami tare da motsawa akai-akai. Yana yiwuwa kuma a lokaci guda don zubar da maganin sulfate na jan karfe da madarar lemun tsami a cikin tanki na uku. A sakamakon haka, an kafa manyan mahadi na sulfate na jan karfe, waɗanda ke da kaddarorin fungicidal (neutralizing daban-daban ƙwayoyin cuta masu cutarwa).
Kada ku haɗu da maganin da aka tattara na jan karfe sulfate da madarar lemun tsami, sannan ku tsoma wannan bayani mai mahimmanci da ruwa kuma ku zuba madarar lemun tsami a cikin wani bayani na jan karfe sulfate. Ruwan Bordeaux da aka shirya da kyau yakamata ya sami launin sama (turquoise) da tsaka tsaki ko ɗan ƙaramin alkaline. Ana lura da halayen tare da alamar duniya, da takarda litmus ko phenolphthalein.
Idan babu waɗannan alamomi, zaka iya amfani da abubuwa na ƙarfe (amma koyaushe mai tsabta daga maiko kuma ba a rufe shi da tsatsa). Idan an rufe wannan abu da jan ƙarfe na jan ƙarfe (shaida cewa maganin shine acidic), ya kamata a ƙara madarar lemun tsami don kawar da acidity na ruwa da aka shirya. Don shirya ƙarin bayani mai aiki na 3% mai mahimmanci, ana buƙatar 300 g. jan karfe sulfate da 450 g na lemun tsami.
bukatar
Wajibi ne a yi amfani da cakuda nan da nan bayan shiri. Girgiza cakuda akai-akai yayin da kuke fesawa don hana abubuwan da ke faruwa. Yana aiki har sai an kawar da shi gaba daya daga cikin foliage.
Saka abin rufe fuska, safofin hannu, da dogayen hannayen riga lokacin nema da shirya wannan samfur.
Matakan tsaro
Phytotoxic akan tsire-tsire masu laushi ko ganyen da aka girma a cikin sanyi, yanayi mai laushi. Ba mai guba ba ne ga mutane ko dabbobi, amma wani lokaci yana da guba ga ƙudan zuma kuma yana da guba sosai ga kifi.
