Journal ArticleDOI
Microbial biomass carbon and nitrogen transformations in a loam soil amended with organic–inorganic N sources and their effect on growth and N-uptake in maize
M. Kaleem Abbasi,Almas Khizar +1 more
TLDR
In this article, the effect of organic amendments (poultry manure, white clover residues, WCR), a mineral N fertilizer (urea N), or mixtures of these fertilizers on microbial activity and nitrogen (N) mineralization through both soil analysis (laboratory incubation) and aboveground maize (Zea mays L.) growth (pot experiment).About:
This article is published in Ecological Engineering.The article was published on 2012-02-01. It has received 52 citations till now. The article focuses on the topics: Loam.read more
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Impact of the addition of different plant residues on nitrogen mineralization-immobilization turnover and carbon content of a soil incubated under laboratory conditions
TL;DR: In this article, a laboratory incubation experiment was conducted for 120 days under controlled conditions (25 °C and 58% water-filled pore space) to quantify initial biochemical composition and N mineralization of leguminous and non-leguminous plant residues, i.e., the roots, shoots and leaves of Glycine max, Trifolium repens, Zea mays, Populus euramericana, Robinia pseudoacacia and Elaeagnus umbellata, incorporated into the soil at the rate of 200 mg residue N kg
Journal Article
EFFECT OF ORGANIC AND INORGANIC FERTILIZER ON YIELD AND CHLOROPHYLL CONTENT OF MAIZE (Zea mays (L.) AND SORGHUM Sorghum bicolour (L) Moench)
TL;DR: In this paper, the effects of amending soil with organic (poultry manure) and inorganic fertilizer on yield and chlorophyll content of maize and sorghum was carried out at the Teaching and Research (TR was highest under control plots in both crops.
Journal ArticleDOI
Improving maize residue use in soil fertility restoration by mixing with residues of low C-to-N ratio: effects on C and N mineralization and soil microbial biomass
Abstract: The application of organic residues with wide C-to-N ratio on soils is known to cause nitrogen immobilization unless applied with nitrogen fertilizer. Considering that fertilizer usage is limited in low input agricultural systems in Africa. we determined whether it was possible to alleviate N immobilization of Zea mays (maize) by applying together with Tithonia diversifolia or Vicia faba green manure with low C-to-N ratio. The effect of sole Z. mays application on soil microbial biomass and carbon mineralization were also compared with when mixed with T. diversifolia or V. faba. The objectives were achieved using laboratory incubation experiments conducted over 84 days. As expected. the application of sole Z. mays residues resulted in an initial net N immobilization that lasted for 28 days. Relative to sole Z. mays. the application of Z. mays with either V. faba or T. diversifolia increased N mineralization by 58% and 55% respectively. It was also evident. that in comparison with sole Z. mays. soil microbial biomass and C mineralization were significantly higher in soils that received residues of V. faba and T. diversifolia either alone or in combination with Z. mays. The study showed that V. faba and T. diversifolia either alone or in combination with Z. mays residues had relatively high N concentration and narrow C-to-N ratio. which accounted for the increased N mineralization and improved microbial biomass and C mineralization. We inferred from the results of our study that N supplies from V. faba and T. diversifolia could be substantial in alleviating delayed decomposition and N immobilization of Z. mays residues.
Journal ArticleDOI
Microbial responses to simulated water erosion in relation to organic carbon dynamics on a hilly cropland in subtropical China
Jinquan Huang,Zhongwu Li,Guangming Zeng,Jiachao Zhang,Jianbing Li,Xiaodong Nie,Wenming Ma,Xue Zhang +7 more
TL;DR: Wang et al. as discussed by the authors investigated the impact of water erosion on the soil microbial communities in a hilly, sloped cropland in subtropical China, and the soil samples collected from three plots (I, II, and III) during and for 132h after rainfall simulation were analyzed.
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Vegetable yields and soil biochemical properties as influenced by fertilization in southern China.
TL;DR: Wang et al. as mentioned in this paper assessed the effects of different fertilizer treatments on vegetable yields and soil biochemical properties, with the aim to develop best fertilizer management strategy for vegetable production. And they concluded that the combined application of organic and chemical fertilizers without additional N or P (OPT) is the best management strategy that can improve soil fertility and vegetable yields, and meanwhile reduce the potential of N loss from soil.
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Soil Chemical Analysis
TL;DR: Soil chemical analysis, Soil Chemical Analysis (SCA), this paper, is a technique for soil chemical analysis that is used in the field of Soil Chemistry and Chemical Engineering.
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An extraction method for measuring soil microbial biomass c
TL;DR: In this paper, the effects of fumigation on organic C extractable by 0.5 m K2SO4 were examined in a contrasting range of soils and it was shown that both ATP and organic C rendered decomposable by CHCl3 came from the soil microbial biomass.