Household biomass ash as a fertilizer to sustainability improve soil nutrition to enhance rice yields

这项提议旨在改善孟加拉国自给自足农民的命运，通过回收农业和自然环境废物，主要是家庭烹饪燃料产生的灰烬，为他们提供可持续的更高水稻产量。孟加拉国的农艺土壤是过度种植的，因为它们往往一年收获两次，大量使用NPKS和锌化肥来维持这种种植强度。这使得作物中未施肥的养分(B、Ca、Co、Cu、Mg、Mo、Ni、Se、Si)被年复一年地去除。在孟加拉国，稻草被喂给牛，由此产生的牛粪被用作家里的燃料。只有零星的家庭灰烬会被重新添加到土地上。家庭燃料也是从穿插的半自然森林和果园中收集的，这些半天然森林和果园是孟加拉国农业景观的典型代表，这些灰烬提供了额外的矿产资源。除了堆肥的家庭垃圾、碾米垃圾、动物被褥和园艺作物垃圾外，还有许多营养丰富的废弃物可以用作稻田肥料。如果将这些溪流重新引回土地，就可以可持续地提高水稻产量，为孟加拉国各地自给自足的稻农提供更多的财富和资源。这种为孟加拉国开发的回收方法可以在世界各地使用，适应当地的水稻种植管理和社会实践。该提案分为四个阶段。第一项是确定流经孟加拉物质水稻种植村的废弃物的营养含量和数量。第二项任务是最大限度地将这些废物流重新引导回陆地。第三个是通过旱季和雨季水稻种植，在孟加拉20个不同地理位置的村庄试验利用这些废物来增强土壤健康和提高水稻产量，测试孟加拉国常见的水稻品种。第四，也是最后一点，将制定一项管理议定书，在孟加拉国的稻田中传播，以教育利用当地再生资源可持续管理稻田的最佳方式。

This proposal is to improve the lot of the subsistence farmers of Bangladesh by giving them sustainably higher yields of rice, through recycling of agronomic and natural environment wastes, primarily as ash from household cooking fuels. Bangladesh agronomic soils are over cropped as they tend to be harvested twice a year, with the heavily application of NPKS and Zn fertilizers to maintaining this cropping intensity. This leaves the nutrients not fertilized (B, Ca, Co, Cu, Mg, Mo, Ni, Se, Si) being removed year on year in the crop. In Bangladesh rice straw is fed to cattle and the resulting cattle dung used for fuel in the home. Only sporadically is household ash added back to land. Domestic fuel is also collected from the interspersed semi-natural forests and orchards that typify the Bangladesh agronomic landscape, with this ash providing additional mineral resource. Along with composted household waste, rice-mill waste, animal bedding and horticultural crop waste, there are many nutrient rich waste streams to be tapped with respect to use as paddy field fertilizers. If these streams are redirected back to the land enhanced yields of rice can be obtained sustainably, giving more wealth and resources to subsistence rice farmers throughout Bangladesh. This recycling approach developed for Bangladesh can be used throughout the world, adapting to local rice growing management and societal practices. The proposal has four stages. The first is to characterize the nutrient content and quantity of waste streams flowing through Bangladeshi substance rice farming villages. The second task is to maximize ways in which to redirect these waste-streams back to the land. The third is to trial, through both wet and dry season rice cultivation, across 20 geographically separated Bangladeshi villages, the utility of these wastes for building up soil health and increasing rice yields, testing common Bangladeshi rice cultivars. Fourthly, and finally, a management protocol will be derived for dissemination across the rice farms of Bangladesh to educate what are the best ways to sustainably manage paddy fields using local recycled resources.