ʻO ka manawa kūpono e hoʻopili ai i ka herbicide ma hope o ka hola 6 o ke ahiahi.Ma muli o ka haʻahaʻa haʻahaʻa a me ka haʻahaʻa haʻahaʻa i kēia manawa, e noho ka wai ma luna o nā lau weed no ka manawa lōʻihi, a hiki i nā mauʻu ke komo piha i nā mea herbicide.He mea maikaʻi ka hoʻomaikaʻi ʻana i ka hopena weeding, a i ka manawa like, hiki ke hoʻomaikaʻi ʻia ka palekana o nā mea kanu kulina, a ʻaʻole maʻalahi ka phytotoxicity.

I ka manawa hea e hoʻohana ai i nā herbicides ma hope o nā hua kulina?

1. No ka mea, ua hoʻopuʻi ʻia ka herbicide ma hope o ka puka ʻana mai, pono ia i nā hola 2-6 no ke kaʻina hana absorption.I loko o kēia mau hola 2-6, inā maikaʻi ka hopena o ka herbicide e pili pū ana me ka mahana a me ka haʻahaʻa o ka ea.E kāpīpī i ke kakahiaka, a i ʻole i ke awakea a i ke awakea i ka wā maloʻo.

2. Ma muli o ke kiʻekiʻe o ka wela, ke kukui ikaika, a me ka volatilization wikiwiki o ka lāʻau lapaʻau wai, e hoʻoheheʻe ʻia ka lāʻau lapaʻau wai ma hope koke o ka pīpī ʻana, i kaupalena ʻia ka nui o ka herbicide e komo ana i ka mauʻu, e alakaʻi i ka lawa ʻole o ka absorption, pēlā e hoʻopilikia ai i ka. hopena herbicidal.Ke hoʻopuʻi ʻia i ka wā wela a me ka maloʻo, pili pū nā hua kulina i ka phytotoxicity.

3. ʻO ka manawa kūpono no ka pulupulu ʻana ma hope o ka hola 6 o ke ahiahi, no ka mea, i kēia manawa, haʻahaʻa ka mahana, kiʻekiʻe ka haʻahaʻa, noho ka wai ma luna o nā lau nahele no ka manawa lōʻihi, a hiki i nā mauʻu ke hoʻopau piha. nā mea kanu lāʻau., He mea maikaʻi ia e hōʻoia i ka hopena o ka weeding, a hiki i ka lāʻau lapaʻau ahiahi ke hoʻomaikaʻi i ka palekana o nā hua kulina, a ʻaʻole maʻalahi ke kumu o ka phytotoxicity.

4. No ka mea, ʻo ka hapa nui o nā herbicides post-emergence i loko o ka kulina he nicosulfuron-methyl, ua maʻalahi kekahi mau ʻano kulina i kēia ʻāpana a ua maʻalahi i ka phytotoxicity, no laila ʻaʻole kūpono ia no ke kanu ʻana i ka palaoa ʻono, kānana waxy, Denghai series a me nā mea ʻē aʻe. nā ʻano ʻano e hoʻoulu ʻia , e pale aku i ka phytotoxicity, no nā ʻano kulina hou, pono ia e hoʻāʻo a laila hoʻolaha.

Pehea e hoʻohana ai i nā lāʻau herbicide ma hope o ka puka ʻana i ka kulina?

1. E nana i ka nui o ka mauu

(1) Ke kāpīpī i nā lāʻau lapaʻau ma hope o nā hua kulina, manaʻo ka poʻe mahiʻai ʻoi aku ka liʻiliʻi o ka mauʻu, ʻoi aku ka liʻiliʻi o ke kūʻē a ʻoi aku ka maʻalahi o ka pepehi ʻana i ka mauʻu, akā ʻaʻole kēia.

(2) No ka liʻiliʻi loa o ka mauʻu, ʻaʻohe wahi lāʻau lapaʻau, a ʻaʻole kūpono ka hopena weeding.ʻO ka makahiki mauʻu maikaʻi loa he 2 lau a me 1 puʻuwai i 4 lau a me 1 puʻuwai.I kēia manawa, loaʻa i ka nāhelehele kahi wahi noi.ʻAʻole nui ka pale o ka weed, no laila ʻoi aku ka maikaʻi o ka hopena weeding.

2. Nā ʻano kulina

Ma muli o ka nui o nā herbicides ma hope o ka puka ʻana i loko o ka kulina he nicosulfuron-methyl, ua maʻalahi kekahi mau ʻano kulina i kēia ʻāpana a ua maʻalahi i ka phytotoxicity, no laila ʻaʻole hiki ke pīpī i nā māla kulina kahi e ulu ai ka palaoa ʻono, ka palaoa waxy, Denghai series a me nā ʻano ʻano ʻē aʻe.No ka hana ʻana i ka phytotoxicity, pono e hoʻāʻo ʻia nā ʻano kulina hou ma mua o ka hoʻolaha ʻana.

3. ʻO ka pilikia o ka hui ʻana i nā pesticides

ʻAʻole pono ke kāpīpī ʻia nā insecticides organophosphorus no 7 mau lā ma mua a ma hope o ka pīpī ʻana i nā mea kanu, inā ʻaʻole maʻalahi ke kumu o ka phytotoxicity, akā hiki ke hui pū ʻia me nā insecticides pyrethroid.Hoʻopiha ka naʻau i ka lāʻau.

4. ʻO ke kūʻē ʻana o ka nahele ponoʻī

I kēia mau makahiki i hala iho nei, ua hoʻomaikaʻi ʻia ka hiki o ka mauʻu ke pale i ke kaumaha.I mea e pale aku ai i ka hoʻohūhū nui ʻana o ka wai i loko o ke kino, ʻaʻole ikaika a paʻa ka mauʻu, akā ulu hina a pōkole, a ʻaʻole liʻiliʻi ka makahiki mauʻu maoli.Uhi ʻia ka mauʻu me nā hulu keʻokeʻo liʻiliʻi a puni ke kino e hōʻemi i ka hoʻoheheʻe ʻana o ka wai.