Straw cutting machine in Bangladesh is badly needed, for crushed straw can be used for many fields. However, there are many problems about dealing with straw in Bangladesh.
Incomplete straw supply system
방글라데시의 짚 수집에는 전문적인 기계와 서비스 메커니즘이 부족하고 정부는 안정적인 가격 시스템을 구축하지 못했습니다. 이런 상황에서 농민들의 주도성은 높지 않다. 빨대 수집 및 보관에 영향을 미치는 요인은 다양합니다. 예를 들어, 날씨와 같은 불확실한 요인의 영향, 건물 저장 공간의 비용 증가 등이 있습니다. 이 모두가 짚 자원을 일률적으로 수집하고 할당하는 것을 어렵게 만듭니다.
Immature straw collection technology
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.
Unclear wet storage mechanism
When storing crop straws, the storage stability needs to be considered to reduce losses as much as possible. When the moisture content of the straws exceeds 50%, wet storage and closed environment storage (such as cellars) are usually used.
However, wet storage increases the cost of transportation and processing. Moreover, the conditions and factors affecting wet storage are uncertain and require in-depth research in Bangladesh.
At present, rapid fermentation to produce lactic acid bacteria can be used to reduce the pH value and consume oxygen to form an anaerobic environment. By doing so, the moisture content, pH value and oxygen concentration of the straw during storage time are maintained at the optimal state.
My conclusions and recommendations
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.