›› 2014, Vol. 16 ›› Issue (3): 119-125.DOI: 10.13304/j.nykjdb.2013.480

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Impact of Different Straw Sources Addition on
Cow Dung Aerobic Composting

ZHAO Xiu-ling1, ZHU Xin-ping1, LUO Yan-li1, JIA Hong-tao1*, YU Xiong2   

  1. 1.College of Pratacultural and Environmental Sciences, Xinjiang Agricultural University, Urumqi 830052|
    2.College of Animal Science, Xinjiang Agriculture University, Urumqi 830052, China
  • Received:2013-09-11 Revised:2013-12-30 Online:2014-06-15 Published:2014-05-04

添加不同秸秆对牛粪好氧堆肥的影响

赵秀玲1,朱新萍1,罗艳丽1,贾宏涛1*,余雄2   

  1. 1.新疆农业大学草业与环境科学学院, 乌鲁木齐 830052|2.新疆农业大学动物科学学院, 乌鲁木齐 830052
  • 通讯作者: 贾宏涛,教授,博士,主要从事农业资源与利用研究。
  • 作者简介:赵秀玲|硕士研究生|主要从事固体废弃物资源化相关研究。E-mail:61003039@qq.com。
  • 基金资助:

    中国科学院战略性先导科技专项(XDA05050504),土壤学新疆自治区重点学科项目资助。

Abstract:

Large scale farming has become the development trend for modern animal husbandry. Recently large scale dairy cow breeding has undergone unprecedented development in Xinjiang Uygur Autonomous Region, but the fecal utilization became a prominent issue. Using cow dung as the main raw material, and adding biological maturity agent and 4 different straws as additives, this study explored the impact of different straw sources addition on cow dung aerobic composition. Results showed as follows: ① At the end of composting, except the control in all treatments the water contents were ≤20%, and met the moisture content standard in organic manure composting. Moisture content of cow dung mixed with alfalfa straw reached standard level at the 18 d section. ② The pH increased and then decreased for all treatment, and the ending heap materials showed a weak alkaline, with pH values at 8.0~9.0. These pH values meet the standard of organic manure composting.  Cow dung and cotton straw composting process ended with a conductivity of 3.28 ms/cm, and would not hinder the crop growth. ③ Throughout the whole composting process, when comparing the contents at initial stage with the end states, it was found that TN contents increased for all treatments except cow dung mixed with alfalfa straw treatment and the control treatment, while TP contents for all treatments increased other than cow dung mixed with cotton straw treatment and the control treatment. Moreover, for each treatment, TK content increased when comparing with the initial state. At the end of the composting, the AP and AK contents increased in each treatment, while the organic matter content reduced, because of mineralization and release of nutrients. But the organic matter content still met the organic matter standard for organic fertilizer.

Key words: straw, cow dung, aerobic composting

摘要:

规模化养殖已成为现代畜牧业的发展趋势,新疆维吾尔自治区奶牛规模化养殖近年来得到前所未有的发展,但其所带来的污粪利用则成为一个突出问题,以牛粪为主要原料,以生物腐熟剂、四种不同秸秆为添加剂,探究不同来源秸秆添加对牛粪好氧堆肥的影响。结果表明:①堆肥结束时,除对照处理外,其他处理的含水量均达到有机肥腐熟标准中的含水量标准≤20%,且牛粪与苜蓿秸秆混合堆肥处理的含水量首先在第18 d达到标准。②pH的变化趋势为先上升后下降,且所有处理终点堆料均呈弱碱性,pH 在8.0~9.0之间,符合腐熟标准。牛粪与棉花秸秆混合堆肥处理结束时的电导率为3.28 ms/cm,不会对作物生长产生阻碍。③在整个堆肥过程中,就初始和结束时的含量相比而言,除牛粪与苜蓿秸秆混合堆肥处理和对照处理外,其他处理的全氮含量均比初期有所增加;与堆肥初期相比,除牛粪与棉花秸秆混合堆肥处理和对照处理外,其他处理的全磷含量均有所增加;各处理全钾含量均比初期有所增加;堆肥结束时,各处理的速效磷、速效钾含量均比初始时有所增加;而有机质因为矿化和释放养分而降低,但仍符合商品有机肥标准。

关键词: 秸秆;牛粪;好氧堆肥

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