Kuipitsidwa nthaka

Nthaka - ndi wosanjikiza pamwamba pa dothi, zimene amakhala chonde - luso kudyetsa zomera mwakula ndi kulimbikitsa kusasitsa awo. Agriculture sizingatheke popanda nthaka, chifukwa wakula mu zikhalidwe zosiyanasiyana ntchito kuphika chakudya cha munthu ndi chakudya ziweto. Monga zothandiza ndi thanzi ndi mankhwala amenewa zimadalira khalidwe ndi chikhalidwe cha nthaka, kuchokera kumusamalira, kudyetsa ndi kuthirira.

yabwino kwambiri ulimi amaonedwa nthaka wakuda wolemera mu humus (humus). Pedogenesis - yaitali ndi zovuta ndondomeko, yomwe ndi chotsatira kukhudzana ndi mphepo ndi mpweya kwa kholo thanthwe kudzikundikira decomposing organic. Ngati pali ngakhale kuipitsidwa pang'ono dothi, kuti angathe kubwezeretsedwanso kwa nthawi yaitali. Choncho, muyenera bwinobwino ndi kusamalira dziko lapansi.

Nthawiyi, zaulimi chifukwa cha kupanda chidwi kwa iye pang'onopang'ono kutaya chonde mofulumira yafupika kuchuluka kwa humus. Munthu amafuna kupeza kuchokera m'nthaka monga momwe mungathere, popanda kutenga nkhani kufunika zatsimikiziridwa kwa kusinthana mbewu chiwembu a dziko, "mpumulo" wa kumunda patapita nthawi zina za "ntchito".

Kuipitsidwa kwa kukokoloka kwa nthaka zingachitike ndipo si chifukwa cha wina, ndi zotsatira zokhalitsa mufunika mphepo ndi madzi. Ambiri, kukokololoka kwa nthaka masiku ano watha kukhala ndi vuto la ulimi ankalankhula lonse mavuto a zachilengedwe.

Angapo mankhwala amachititsa kuipitsa nthaka. Kwa zaka zambiri pa dziko lomwelo mosintha kukula chikhalidwe, popanda kupanga pansi limapereka. Choncho bwino kuti nthaka kutopa ndi sangapezekenso kwathunthu ntchito zake - kotunga zomera m'thupi, fyuluta zinyalala ndi madzi achilengedwe.

Kukhala nthaka ayenera mwasayansi ndi rationally kufikako angasunge yaitali ntchito ndi kulima kumapangitsanso chonde ndi kutuluka oyera ndi thanzi. Kuti tichite zimenezi, muyenera kutsatira kasinthasintha mbewu, ntchito zapamwamba sayansi, zosavuta ndi kothandiza munda makina, monga pang'ono monga zotheka kugwiritsa ntchito mankhwala, ndipo m'malo ntchito njira ulimi kwachilengedwenso

feteleza ndi mankhwala makamaka nitrate - chachikulu cha kuwonongeka kwa nthaka. Paokha, zinthu zimenezi si zoipa ndipo sangakhale gwero poyizoni M'malo mwake - zomera ntchito kutsogolera maselo, wotchedwa chlorophyll mapangidwe. Komabe, wambirimbiri m'nthaka, ku feteleza kulowa chakudya, ndiyeno - mu thupi la munthu. Pali ku feteleza kuwasandutsa nitrites ndipo angaloŵe mankhwala anachita ndi chimodzi cha magazi - hemoglobin. Kuyambira methemoglobinemia losaukalo - matenda amene zizindikiro ndi akuwonetseredwa mu kuchepa mu kuthamanga, kusintha mithunzi ya nembanemba wa mucous ndi khungu, mapangidwe matenda mtima kapena m'mapapo mwanga.

Mofanana kwambiri ndi kuipitsa mafuta nthaka. Makamaka kwambiri pafupi misewu, gasi, maofesi utumiki, m'mapaki galimoto. Ndipo mu malo amenewo kumene kukhala kupanga mafuta processing ake, kayendedwe, mlingo mafuta kuipitsa nthaka kuposa tenfold kololeka.

Mwadongosolo zinyalala mu malo akhala akutayirapo dothi la kumam'phunzitsa osiyana chiyambi ntchito inefficient m'dziko, angachititse kwambiri kuipitsa mpweya, madzi, kuchuluka ndalama zoyendera ndi kumene imfa sizingasinthe mchere wofunika m'nthaka.