通过室内模拟堆制和同位素交叉标记，研究了以稻草和禽畜粪为主体材料的堆肥制作过程中的生物化学变化特征。
Simulated composting was carried out to study the changes of biochemistry and chemical characteristics of the organic manure compost using labelled organic material and inorganic nitrogen fertilizer.
这里是印度西部马哈拉施特拉邦阿实蒂村的郊外，在卡勒身旁是一片遍地是粪的荒地，帕蒂种族的男女们在此定居。他们从出生起就被标记上“罪犯”的烙印。
Squatting beside Mr Kale, on a turd-strewn wasteland outside Ashti, a village in India's western state of Maharashtra, Pardhi men and women describe what it is like to be branded criminal at birth.
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