17/10/11

一项研究发现,香蕉堆肥可以提高作物产量

果实后,香蕉树可以转换为堆肥版权:Flickr/Jeremy Franchi

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[开罗]使用旧香蕉树制成堆肥可能有助于提高农作物的产量and fertiliser use, according to an Egyptian researcher.

基于香蕉的肥料可以削减埃及国家研究中心的一名研究人员发现,大约20%用于灌溉玉米的水并导致更好的产量和改善的土壤特性(例如微量营养素和土壤水分)。

香蕉树——事实上一个大草,只有水果啊nce and most of the farmers in Egypt, who plant more than 52,000 acres of bananas, burn the trees (stems) after they have borne fruit, even though they are hard to burn because of their high moisture content.

现在,上个月因研究而获得博士学位的Nesreen H. Abou-Baker说,这些树木可以更好地使用。

She mixed banana residue with manure and microorganisms, such as yeast, and tested the compost in field experiments at the Noubariya Agricultural Research Station, north of Cairo, during four successive growing seasons of corn and beans.

"使用香蕉堆肥我们得到与其他肥料相比,土壤中养分的效率更高,good aeration associated with the relatively low application of irrigation water, 和通过浸出减少了营养损失,”阿布·贝克说。

当用香蕉堆肥而不是常规的矿物质肥料生长时,重金属的浓度(镉,铅,镍)也降低了。

The compost阿布·贝克说,可能在埃及以外的其他香蕉种植区中使用。它可以由农民自己准备,也可以是商业生产并出售给农民的。

Salah Saad Zarad, associate professor at the agriculture division of the National Research Centre, said: "Mineral fertilisers are too costly to be used in large quantities for profitable production in developing countries so crop residues are a promising alternative for nutrient recycling in soil … easily and cheaply available on a farm".

扎拉德说的结果are encouraging, and suggested it may be more成本效益为了建立堆肥的商业生产,而不是单独生产香蕉农民.

农业扩展与农村发展研究所研究副总裁艾哈迈德·加马尔·戴恩·瓦尔巴(Ahmad Gamal Dein Wahba)说:“这一发现可以使农民更好地欣赏香蕉堆肥”。他补充说,即使是被堆积的顶部病毒感染的香蕉树,必须被破坏,现在也可以使用。