Izindawo ze-USDA zezitshalo eLouisville
Esimweni saseKentucky, izindawo ze-USDA 6 kuya ku-7 zimelelwa. I-Louisville iwela endaweni ye-7, nakuba abanye balimi benenhlanhla ngesitshalo sezulu esishisayo. Isibonelo, ngibone imithi yamakhiwane ikhula uma itshalwe ilanga eliqondile. Amakhiwane avame ukuba ngumuthi okhulile ezindaweni 8-10.
Ukuqonda ama-USDA Izindawo
Ngokuyinhloko, izindawo ze-USDA yizindawo ezichazwe ukushisa. Umgomo ukuhlukanisa ukuthi yiziphi izitshalo ezithile ezingakhula ngokusekelwe kobunzima bezitshalo.
Lezi zindawo zinikeza abanikazi bamazwe kanye nabalimi ithuba lokulandela lapho behlwanyela izihlahla, izimbali, izithelo noma imifino. Indawo ngayinye yendawo echazwe endaweni ekhonjwe amazinga okushisa angaphansi kwaleyo ndawo, elinganiselwe ku-Celsius. Isibonelo, uma isitshalo sichazwa ngokuthi "siqinile ukuya endaweni engu-10," kucatshangwa ukuthi lesi sitshalo singakhula uma nje izinga lokushisa lingekho ngaphansi kwe--1 ° C (noma ngo-30 ° F). I-Louisville isendaweni epholile, ngakho isitshalo "esinamandla ukuya endaweni engu-7" singaphumelela endaweni enezinga lokushisa eliphansi lonyaka elizungeze -17 ° C (noma ngo-10 ° F). Isistimu yendawo ye-USDA yasungulwa yi-United States nguMnyango Wezolimo (USDA).
Yiqiniso, isimo sezulu siyashintsha. Ukugcina ukushisa kwamazinga aphezulu aseLouisville aphakeme nonyaka aphansi engqondweni, kanye nengxenye yethu ye-USDA, kungasiza ekuqinisekiseni impumelelo yokulima.