(1) Chidziwitso choyambirira cha feteleza wa mankhwala
Feteleza wa mankhwala: feteleza wopangidwa ndi mankhwala ndi / kapena njira zakuthupi zomwe zimakhala ndi michere imodzi kapena zingapo zofunika pakukula kwa mbewu. Amatchedwanso feteleza wa atorganic, amaphatikiza feteleza wa nayitrogeni, feteleza wa potaziyamu, manyowa, ma feteleza, ndi zina zambiri. Makhalidwe a feteleza amaphatikizika ndi zosavuta, zokhala ndi michere yayikulu, feteleza wachangu, ndi feteleza wamphamvu. Ma feteleza ena ali ndi asidi-acid; Nthawi zambiri amakhalabe ndi zinthu zachilengedwe ndipo alibe vuto pakusintha kwa nthaka ndi umuna. Pali mitundu yambiri ya feteleza wamankhwala, ndi zinthu zawo ndi njira zogwiritsira ntchito zimasiyana kwambiri.
(2) Chifukwa chiyani tifunika kudziwa feteleza wodziwa ntchito ma feteti?
Feteleza ndi chakudya cha zomera ndi zinthu zofunikira zaulimi. Kugwiritsa ntchito mwanzeru feteleza kumathandizanso kukonza zokolola pazinthu pagawo komanso mtundu wazomwe ulimi wa ulimi, komanso kuyambitsa chonde. Mitundu yosiyanasiyana ya feteleza ali ndi mawonekedwe osiyanasiyana, omwe amafuna kuti timvetsetse feteleza pafupifupi osiyanasiyana pogwiritsa ntchito feteleza kuti feteleza azigwiritsa bwino ntchito komanso moyenera.
Tikudziwa kuti feteleza wamankhwala ali ndi mawonekedwe a michere yayikulu, mwachangu, komanso michere imodzi. Mwachitsanzo, ammonium bicarbonate amakhala ndi 17% nayitrogeni, omwe ndi opitilira 20 apamwamba kuposa a nayitrogeni zomwe zili mkodzo wamunthu. Amonium nitrate muli 34% nayitrogeni yoyera, pomwe urea, madzi a nayitrogeni, ndi zina zambiri. Nthawi yomweyo, feteleza wamankhwala amatha kugawidwa m'malo ochita mwachangu komanso osachedwa, ndipo nthawi yogwiritsa ntchito ndi nthawi yofunsidwanso imasiyananso.
(3) Gulu molingana ndi feteleza
(1) feteleza wochita mwachangu
Pambuyo pa feteleza wotere feteleza wa munthaka, imasungunuka nthawi yomweyo munthaka ndikulowetsedwa ndi mbewu, ndipo zotsatira zake ndizofulumira. Mitundu yambiri ya feteleza wa nayitrogeni, monga Kalcium phosphate mu phosphate mu feteleza wa potaziyamu wa potaziyamu, ndi potaziyamu molfate ndi feteleza wachangu mwachangu. Kufulumira kwa mankhwalawa kumagwiritsidwa ntchito ngati chovala chapamwamba ndipo chitha kugwiritsidwanso ntchito ngati feteleza wotsika.
(2) feteleza womasulidwa pang'onopang'ono
Amadziwikanso kuti feteleza wogwira ntchito ya nthawi yayitali komanso feteleza wosachedwa, mankhwalawa michere ya fetenti amatha kumasulidwa pang'onopang'ono kwa nthawi yopitilira nthawi yopitilira. Ndiye kuti, michereyi itayikidwa m'nthaka, ndizovuta kulowezedwa ndi yankho la nthaka yomweyo. Kusungunuka kumafuna kusintha kwakanthawi kochepa kwa feteleza usanawoneke, koma feteleza zotsatira nthawi yayitali. Kutulutsidwa kwa michere mu feteleza kumatsimikiziridwa kwathunthu ndi zinthu zachilengedwe ndipo sikulamulidwa ndi anthu. Mwa iwo, ammonium akhama nthawi yayitali amawonjezeredwa ndi ammonia mu ma ammonium ku Ammonium bicarbonate nthawi ya masiku 30 mpaka 10-110, ndipo amawonjezera chizolowezi chokwanira 25% mpaka 35%. Feteleza womasulidwa pang'onopang'ono nthawi zambiri amagwiritsidwa ntchito ngati feteleza wotsika.
(3) feteleza womasulidwa
Kulamulidwa ndi matenthedwe omasulira ndi feteleza wochita pang'onopang'ono, zomwe zikutanthauza kuti kuchuluka kwa michere, kuchuluka ndi nthawi ya feteleza kumapangidwa mwaluso. Ndi mtundu wa feteleza wapadera womwe Mphamvu yomwe ma botso omwe amatulutsa michere amayendetsedwa kuti afanane ndi zofunikira za mbewu nthawi ya kukula. . Mwachitsanzo, masiku 50 amasamba, masiku 100 a mpunga, masiku 300 a nthochi, ndi michere. Zinthu zomwe zimayendetsa michere zimakhudzidwa ndi chinyezi cha nthaka nthawi zambiri, kutentha, ph, zina mwa njira yosavuta kwambiri yomasulira ndi njira yolumikizira. Zipangizo zophatikizira zosiyanasiyana, makulidwe okutira ndi kanema wotseguka zitha kusankhidwa kuti zithetse kuchuluka kwa kumasulidwa.
Post Nthawi: Aug-06-2024
