Mashine ya kukata majani ya ngano nchini Bangladesh is badly needed, for crushed straw can be used for many fields. However, there are many problems about dealing with straw in Bangladesh.
Mfumo usio kamilifu wa usambazaji wa majani
Ukusanyaji wa majani nchini Bangladesh unakumbwa na ukosefu wa mashine za kitaaluma na mfumo wa huduma, na serikali haijasimamisha mfumo wa bei thabiti. Katika hali hii, juhudi za wakulima si za juu. Kuna mambo mengi yanayoathiri ukusanyaji na uhifadhi wa majani. Kwa mfano, athari za mambo yasiyo na uhakika kama hali ya hewa, na gharama zilizoongezeka za kujenga nafasi za kuhifadhi. Vyote vinawafanya iwe vigumu kukusanya na kugawa rasilimali za majani kwa usawa.
Teknolojia isiyokomaa ya ukusanyaji wa majani
Straw cutting machine in Bangladesh is rear-mounted with small size and low efficiency, and it is just suitable for dry land. So, it is difficult for straw cutter machine to work in paddy fields. When working, there are such malfunctions as entanglement, clogging of working parts, which makes it impossible to collect relatively high and thick straw such as corn straw and sorghum straw.
The tractor-driven straw cutting machine in Bangladesh is not easy to turn, and is suitable for fields with large space. Moreover, the straw cutting machine and straw baling machine work separately, increasing labor intensity.
Mfumo usioeleweka wa uhifadhi wa mvua
Wakati wa kuhifadhi majani ya mazao, usalama wa uhifadhi unahitaji kuzingatiwa ili kupunguza hasara kadri inavyowezekana. Wakati unyevu wa majani unapozidi 50%, uhifadhi wa mvua na uhifadhi wa mazingira yaliyofungwa (kama vile maghala) huwa kawaida kutumika.
Hata hivyo, uhifadhi wa mvua huongeza gharama za usafirishaji na usindikaji. Zaidi ya hayo, hali na mambo yanayoathiri uhifadhi wa mvua ni yasiyo na uhakika na yanahitaji utafiti wa kina nchini Bangladesh.
Kwa sasa, fermentation ya haraka ili kuzalisha bakteria wa asidi ya lactic inaweza kutumika kupunguza thamani ya pH na kutumia oksijeni kuunda mazingira yasiyo na oksijeni. Kwa kufanya hivyo, kiwango cha unyevu, thamani ya pH na mkusanyiko wa oksijeni wa majani wakati wa kuhifadhi huwekwa katika hali bora.
Hitimisho langu na mapendekezo
1. It is recommended to reach an agreement with the local farmers to store straw jointly.
2. By examining the distribution of farmland, selecting appropriate locations to establish large straw acquisition points.
3. Develop combined straw cutting machine in Bangladesh for small farmland areas with soft soil and much mud.
4.Seek effective and economical storage methods for the straw that is easy firing and mildew during storage time.