scholarly journals Effect of biochar addition method on ammonia volatilization and quality of chicken manure compost

2021 ◽  
Vol 108 (4) ◽  
pp. 331-338
Author(s):  
Mahmoud G. M. Abd El-Rahim ◽  
Sen Dou ◽  
Liu Xin ◽  
Shuai Xie ◽  
Ahmed Sharaf ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Chicken Manure ◽  
Addition Method ◽  
Manure Compost

Research on Vegetable Waste Aeration Oxygen-Supply Compost and its Ammonia Volatilization

2014 ◽  
Vol 955-959 ◽  
pp. 2845-2850
Author(s):  
Yan Yang ◽  
Ni Li ◽  
Qin Ping Sun ◽  
Ji Jin Li ◽  
Ben Sheng Liu ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Oxygen Supply ◽  
Ammonia Volatilization ◽  
Nitrogen Loss ◽  
Chicken Manure ◽  
Cattle Dung ◽  
Vegetable Waste ◽  
Corn Straw ◽  
Composting Process

Normally, because the water content is generally high in vegetable waste, the quality of aerobic composting can not be guaranteed. In order to solve this problem, this experiment, regarding lettuce waste and pumpkin straw as researching objects, by adding corn straw as auxiliary materials, chicken manure and cattle dung as regulators, conducts research on the process of aerobic fermentation and the ammonia volatilization in this process. The experiment sets up six treatments in total, they are respectively: A1 (lettuce + corn straw), A2 (lettuce + corn straw + chicken manure), A3 (lettuce + corn straw + cattle dung), B1 (pumpkin straw + corn straw), B2 (pumpkin straw + corn straw + chicken manure) and B3 (pumpkin straw + corn straw + cattle dung). After all treatments being mixed, the aerobic compost is conducted through aeration oxygen-supply and the physicochemical properties and material changes in the composting process have been monitored. The results show that: adding cattle dung has a greater impact on the process of vegetable waste composting than adding chicken manure, where, the germination indexes (GI) A3 and B3 adding cattle dung are respectively 7.10% and 3.44% higher than those of A2 and B2 in adding chicken manure; after the composting the C/N of all treatments are lower than their initial values and reach a significant level (P<0.0001), among them, C/Ns of A3 and B3 decrease to the greatest extent, which are 52.84% and 53% respectively; in the whole composting process, the quantity of ammonia volatilization in treatments adding chicken manure (A2 and B2) is significantly higher than that of adding cattle dung (A3 and B3). On the whole, adding cattle dung can better promote the decomposing process in vegetable waste composting and reduce nitrogen loss than adding chicken manure under conditions in this experiment.

scholarly journals Evaluation of Physiological and Quality Parameters of Green Asparagus Spears Subjected to Three Treatments against the Decline Syndrome

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 937
Author(s):  
Francisco Javier López-Moreno ◽  
Santiago Atero-Calvo ◽  
Eloy Navarro-León ◽  
Begoña Blasco ◽  
Teresa Soriano ◽  
...  
Keyword(s):  
Early Death ◽  
Amino Acid Profile ◽  
Quality Parameters ◽  
Asparagus Officinalis ◽  
Chicken Manure ◽  
Economic Losses ◽  
Whole Plants ◽  
High Level ◽  
Green Asparagus

Green asparagus (Asparagus officinalis L.) is a widely grown and consumed crop which provides high-level nutritional interest. In recent years, the decline syndrome in asparagus plantations has been rapidly augmenting. This syndrome causes the early death of whole plants, also negatively affecting the new replanting. Decline causes notable economic losses in the sector. The objective of this work was to verify the effect of different treatments against asparagus decline syndrome on the physiological parameters and nutritional quality of the spears. To meet the objective, four different treatments were applied to asparagus plots strongly affected by decline syndrome: (T1) untreated control soil, (T2) biofumigation with Brassica pellets, (T3) biofumigation with chicken manure pellets, and (T4) disinfestation of the soil with Dazomet. The cumulative yield and physiological and quality parameters of green asparagus spears were studied. Thus, malondialdehyde (MDA), photosynthetic pigments, glutathione (GSH), ascorbate (AsA), total phenols, flavonoids, anthocyanin, antioxidant test, mineral nutrients, and the amino acid profile were measured on asparagus spears. The results showed that the Brassica pellets and Dazomet treatments were the most effective against the damage caused by the decline syndrome. However, it would be necessary to monitor the evolution in the following years.

scholarly journals Effects of Furrow Height and Amount of Manure Compost on the Growth, Yield, and Quality of Organically Grown Green Asparagus

2021 ◽  
Vol 4 (2) ◽  
pp. 1056-1066
Author(s):  
Nguyen Hong Hanh ◽  
Nguyen Thi Ai Nghia ◽  
Nguyen Thi Ngoc Dinh ◽  
Do Thi Huong
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Asparagus Officinalis ◽  
Manure Compost ◽  
Yield And Quality ◽  
Upland Crop ◽  
National University ◽  
Organically Grown ◽  
Green Asparagus

A two-season field trial was carried out in the Upland Crop Experiment Field of the Faculty of Agronomy, Vietnam National University of Agriculture (VNUA) to assess the effects of three furrow heights (20, 35, and 50cm) and three manure compost levels (15, 25, and 35 tons ha-1) on the growth, yield, and quality of green asparagus (Asparagus officinalis L.) grown organically. The experiments were arranged in a randomized completely block design (RCBD) with three replications. The results showed that the harvested yield was highest (11.3 and 25.1 quintals ha-1 in the 2019 autumn and 2020 spring season, respectively) in the treatment with a furrow height of 35cm and compost level of 35 tons ha-1 in both seasons, and explained by the increased spear diameters and number of spears per plant in this treatment when the furrow height and compost level were increased. Additionally, the chlorophyll content, water loss, and dry matter weight of the spears also increased when the furrow height and compost level increased. The obtained quality of the spears under organic management at the furrow height of 35 cm and compost level of 35 tons ha-1 was higher than the other treatments with higher reducing sugars, vitamin C, and Brix values, while the residue nitrate contents of all the treatments were lower than the allowed safety threshold.

scholarly journals Towards integrated pig production in the Netherlands.

1992 ◽  
Vol 40 (3) ◽  
pp. 315-325
Author(s):  
L.A. den Hartog
Keyword(s):  
The Netherlands ◽  
Ammonia Volatilization ◽  
Integrated Approach ◽  
Pork Production ◽  
Pig Production ◽  
Mineral Excretion ◽  
Intensive Production ◽  
Economic Production

The intensive production of pigs requires attention to the effects of the production on the environment (slurry production, mineral excretion and ammonia volatilization), the quality of the product, the health and welfare of pigs, and the working circumstances of the farmer. An integrated approach to these items is necessary to achieve sustainable, safe and economic production. The constraints of integrated pork production and possible solutions are described. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Effects of Organic Fertilizer on Growth Performance and Postharvest Quality of Pak Choy (Brassica rapa subsp. chinensis L.)

2021 ◽  
Vol 1 (1) ◽  
pp. 43-50
Author(s):  
Nur Suhaida Mohamad ◽  
Faizah Abu Kassim ◽  
Norhanizan Usaizan ◽  
Azimah Hamidon ◽  
Zahir Shah Safari
Keyword(s):  
Plant Growth ◽  
Growth Performance ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Leaf Length ◽  
Leafy Vegetables ◽  
Chicken Manure ◽  
Postharvest Quality

Long-term use of inorganic fertilizers on leafy vegetables can increase soil acidity, harmful to the environment and leaving bad effects on human health. Organic fertilizer application is one of the safer alternatives with many beneficial effects by supplying nutrients for plant growth, environmental-friendly and producing an optimum quality of vegetables. Different organic amendment such as vermicompost, biochar and microbial compost has different effect on plant growth performance since good bacteria could improve structure of the soil and nutrient absorption. Therefore, this study aims to evaluate the effects of organic fertilizer on the growth performance and postharvest quality. The experimental design during planting was conducted in randomized completely block design with a factorial arrangement of treatmentswhile for postharvest quality study was conducted in completely randomized design. Organic fertilizer of vermicompost (110 g/plant), biochar (100 g/plant), microbial compost (80 g/plant) and chicken manure (37.5 g/plant) were treated on Pak choy two times on day 10 and day 24 after transplant. This research revealed the plant growth including plant height, leaf number and leaf length of Pak choy in all treatments were increased as growing stage increased. However, at the end of growing stage, microbial compost and vermicompost resulted in the highest of growth characteristics. In terms of postharvest quality, microbial compost showed the highest fresh weight and premium quality. This study proved that microbial compost at 80 g/plant exhibited optimum growth performance and the best postharvest quality of Pak choy.

The Use of Manure on Smallholders' Farms in Semi-Arid Eastern Kenya

1995 ◽  
Vol 31 (3) ◽  
pp. 371-381 ◽  
Author(s):  
M. E. Probert ◽  
J. R. Okalebo ◽  
R. K. Jones
Keyword(s):  
Current Practice ◽  
Ammonia Volatilization ◽  
Farming Systems ◽  
Poor Quality ◽  
Soil Samples ◽  
Scarce Resource ◽  
Subsistence Farming ◽  
Important Resource ◽  
Semi Arid

SummaryThe manure that is returned to croplands each year is an important resource in the subsistence farming systems of eastern Kenya. Measurements on several farms have shown that the manure being used is of very poor quality. Analyses of soil samples from beneath the bomas (small enclosures) where animals are kept indicate that substantial losses of nutrients occur through leaching; ammonia volatilization and denitrification may also be involved. Current practice is to apply the manure at rates that appear to make poor use of this scarce resource. The findings are discussed in terms of what changes to the system may be feasible to reduce losses of nutrients, and to improve the quality of the manure and the effectiveness of its use.

Influence of 3 Kinds of Organic Fertilizers on the Degradation of p, p′-DDT in Clay under Flooding Conditions

2014 ◽  
Vol 1010-1012 ◽  
pp. 610-613
Author(s):  
Xiao Deng ◽  
Chun Yuan Wu ◽  
Yi Li ◽  
Jing Kun Liu ◽  
Qin Fen Li
Keyword(s):  
Activated Sludge ◽  
Clay Soil ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Pot Experiment ◽  
Clay Soils ◽  
Manure Compost ◽  
Degradation Rates ◽  
Cassava Residue ◽  
Degradation Effect

Using pot experiment to study the influence of three organic fertilizers of chicken manure compost (CM), activated sludge (AS) and cassava residue compost (CR) on the degradation of p, p'-DDT in clay soil under flooding conditions. The results showed that the two kinds of organic fertilizers of AS and CM could effectively accelerate the degradation of p, p'-DDT in clay soils, and the degradation effect was the best when adding 2% CM or 3% AS in clay soil. However, the influence of CR on the degradation of p, p'-DDT was not obvious. The degradation rates of P, P′-DDT in the treatment on adding 1% AS were from zero to 7.4% higher than that of 1% CM. The degradation rates of P, P′-DDT in the treatment on adding 2% AS were from zero to 11.3% higher than that of 2% CM. The degradation rates of P, P′-DDT in the treatment on adding 3% AS were from 8.3% to 27.4% higher than that of 3% CM. which indicated that AS is more conducive to the degradation of p, p'-DDT in the clay.

scholarly journals Pemberdayaan Masyarakat Tani melalui Penerapan Sistem Pertanian Terpadu di Nagari Singkarak, Kecamatan X Koto Singkarak, Kabupaten Solok

2016 ◽  
Vol 1 (2) ◽  
pp. 127
Author(s):  
Delvi Yanti ◽  
Mislaini Rahman
Keyword(s):  
Farming System ◽  
Chicken Manure ◽  
Cow Dung ◽  
Target Groups ◽  
Particle Composition ◽  
Integrated Farming ◽  
Media Source ◽  
Quality Of Outcome ◽  
The Media

The objectives of KKN-PPM activity are: 1) The method of utilizing the wastes of agriculture and stock husbandry as the media source of production oriented at the quality of outcome and the preservation of environment; and 2) The formation of sustainable integrated farming centers. The methods of activity applied are participation and action that involve the groups of target society and students who act as the facilitators. This activity was followed by 28 students partnering with <em>Cimpago Putih</em> farmer group. The results achieved on this activity are that the target groups have understood the method of utilizing the wastes of agriculture and stock husbandry, and together with the students made the demonstration plot of integrated farming system. The results achieved on each demonstration plot are: 1) The demonstration plot of mina paddy namely the growths of paddy and fish that look good; 2) The demonstration plot of combining fishery and stock husbandry, namely to decrease the contamination of environment by chicken manure; 3) The demonstration plot of biogas made of cow dung, namely gas (formed after 20 days from the first refill) and liquid compost (the sludge of biogas by-product) with the particle composition of nitrogen (2.59%), phosphor (0.022%), and kalium (4.01%); 4) The demonstration plot of compost from the waste of agriculture namely solid compost (straw and kirinyuh) with the particle composition of nitrogen, phosphor, and kalium are 2.14, 0.407, and 1.79%; and 5) the demonstration plot of cultivation and processing of forage namely the better growth of elephant grass with the ratio of alive and dead elephant of 30:1 and the paddy straw of ammoniation (the smell of ammonia, the color of brown green, and none fungus).

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