Fate of carbon and nitrogen from animal manure and crop residues in wet and cold soils

2002 ◽  
Vol 34 (4) ◽  
pp. 509-517 ◽  
Author(s):  
Martin H Chantigny ◽  
Denis A Angers ◽  
Philippe Rochette
Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 527
Author(s):  
Andrzej Wysokinski ◽  
Izabela Lozak ◽  
Beata Kuziemska

Atmospheric nitrogen biologically reduced in legumes root nodule and accumulated in their postharvest residues may be of great importance as a source of this macronutrient for succeeding crops. The aim of the study was to determine nitrogen uptake by winter triticale from pea postharvest residues, including N fixed from atmosphere, using in the study fertilizer enriched with the 15N isotope. Triticale was grown without nitrogen fertilization at sites where the forecrops had been two pea cultivars (multi-purpose and field pea) and, for comparison, spring barley. The triticale crop succeeding pea took up more nitrogen from the soil (59.1%) and less from the residues of the forecrop (41.1%). The corresponding values where the forecrop was barley were 92.1% and 7.9%. In the triticale, the percentage of nitrogen derived from the atmosphere, introduced into the soil with pea crop residues amounted to 23.8%. The amounts of nitrogen derived from all sources in the entire biomass of triticale plants grown after harvesting of pea were similar for both pea cultivars. The cereal took up more nitrogen from all sources, when the soil on which the experiment was conducted had higher content of carbon and nitrogen and a greater amount of N was introduced with the pea residues. Nitrogen from pea residues had high availability for winter triticale as a succeeding crop cultivated on sandy soils.


2021 ◽  
Vol 9 ◽  
Author(s):  
Rikke Lybæk ◽  
Tyge Kjær

This article investigates how biogas technology can facilitate the deployment of municipal circular bio-economic solutions within the energy and agrarian sectors in Denmark. The emphasis is on the regional climate policy and the existing biogas technology concepts, within a decentralized energy market located in the Southern part of Zealand. The case analysis will identify how such technology can be utilized as a lever for future “extraction-activities,” as for example protein, wax, and furfural substrates. Within Falster & Lolland Municipalities, it is identified that 800.000 tons of animal manure is readily available for biogas production, just as 880.000 tons and 220.000 tons of unused beet tops and residual cereal straw could be feed to biogas facilities as for example co-silage materials. With a potential gas yield of approximately 897.000 MWh, composed by the crop residues alone, the challenge is how to utilize such resources the most efficient when addressing future needs for bio-products and high value materials and energy. Through the lens of Circular Bio-Economy this article addresses three themes, by which biogas technology can become an “engine” for future bioenergy solutions, where cascading activities and use of side-streams are developed: 1) production of biogas by means of local agricultural residues (beet tops, residual straw, and animal manure), combined with 2) “extraction-activities” as furfural and wax from straw, as well as protein from beet tops. Besides this 3) opportunities for upgrading the biogas and distributing it on a natural gas network, hereby enlarging the supply market for energy services from the biogas plant and facilitating the development of a more “integrated energy system,” currently being promoted by the European Commission. This article concludes on a step-by-step approach to utilize biomass residues more efficiently in light of the CBE concept and cascading approach, and the available biomass resources within the specific case area addressed.


2012 ◽  
Vol 12 (6) ◽  
pp. 844-853 ◽  
Author(s):  
Xiaoqi Zhou ◽  
Chengrong Chen ◽  
Hanwen Wu ◽  
Zhihong Xu

2017 ◽  
Vol 65 (42) ◽  
pp. 9186-9190 ◽  
Author(s):  
Xueli Chen ◽  
Guanglu Zhao ◽  
Yang Zhang ◽  
Lujia Han ◽  
Weihua Xiao

2019 ◽  
Vol 8 (1) ◽  
pp. 104-116
Author(s):  
Zulzain Ilahude ◽  
Sartin Miolo

The objectives of this community service activity are 1) encouraging students and young farmers to master agricultural technology, 2) developing students' creativity in organic vegetable cultivation with hydroponic technology innovation, 3) utilizing organic waste such as animal manure, crop residues in the form of rice straw, sawdust  , husk charcoal, as a medium for organic fertilizer, 4) providing direct practice on how to make simple hydroponics, the importance of maintaining soil fertility for plants, and entrepreneurship.  Methods in the forming of direct application practice regarding making organic fertilizers, cultivating vegetables, and techniques for making simple hydroponics.  The locations of the activities are in the villages of Tunggulo, Tungulo Selatan, and Bongoime, Tilong Kabila District, Bone Bolango Regency, Gorontalo Province.  This activity was attended by 34 students’ participants from the Department of Agrotechnology and other departments at State University of Gorontalo and collaborated with young farmers, held for 40 days from September 8 to October 10, 2020. The results of the activity showed that community service activities in partner villages were carried out running well and according to the planned program.  Students and young farmers have succeeded in developing hydroponic manufacturing techniques with vegetable commodities and organic growing media that use compost of manure and husk charcoal


Soil Research ◽  
2017 ◽  
Vol 55 (4) ◽  
pp. 332 ◽  
Author(s):  
Johannes Lund Jensen ◽  
Per Schjønning ◽  
Bent T. Christensen ◽  
Lars Juhl Munkholm

Nutrient management affects not only crop productivity and environmental quality, but also soil physical properties related to soil tilth. Previous studies on soil physical properties have focussed on effects of fertiliser type, whereas the effect of fertiliser rate has been neglected. We examined the impact of no fertilisation (UNF) and different rates of mineral fertiliser (½NPK and 1NPK) and animal manure (1½AM) on an ensemble of soil physical characteristics, with the amount of fertiliser added at level 1 corresponding to the standard rate of plant nutrients for a given crop. Soil was from the Askov long-term field experiment, initiated in 1894 on a hard-setting sandy loam. We assessed clay dispersibility, wet-stability of aggregates, aggregate strength, bulk soil strength and soil pore characteristics. The soils receiving 1NPK and 1½AM had similar soil physical properties, the only differences being a wider range in the optimum water content for tillage and more plant-available water in the soil amended with 1½AM. Suboptimal fertiliser rates (UNF and ½NPK) increased clay dispersibility, soil cohesion and bulk density, and reduced aggregate stability. The physical properties of soils exposed to suboptimal fertilisation indicate that the level of soil organic matter, including active organic binding and bonding materials, has become critically low due to reduced inputs of crop residues. While long-term suboptimal fertilisation compromises soil physical properties, crop-yield-optimised rates of mineral fertilisers and animal manure appear to sustain several soil physical properties equally well.


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