Biochar as an organic soil conditioner for mitigating salinity stress in tomato

Author(s):  
Raziye Kul ◽  
Tuba Arjumend ◽  
Melek Ekinci ◽  
Ertan Yildirim ◽  
Metin Turan ◽  
...  
1997 ◽  
Vol 28 (17-18) ◽  
pp. 1549-1564
Author(s):  
D. L. Bouranis ◽  
A. G. Vlyssides ◽  
J. B. Drossopoulos ◽  
D. G. Economides ◽  
B. Mourafeti ◽  
...  

2021 ◽  
Author(s):  
Giuseppe Paolo Coppola ◽  
Giuseppe Di Rauso Simeone ◽  
Francesco Vairo ◽  
Michele Caputo ◽  
Carmine Amalfitano ◽  
...  

<p>Intensive cultivation of greenhouse crops can damage soil quality due to higher micro-environmental temperatures than field crop production, the absence of rotations, the preference of milling to ploughing, the mineral fertilization and the removal of crop residues without the organic matter reintegration. The compost addition to agricultural soil mainly enhances the organic matter content having, in turns, effects in improving physical, chemical, biochemical and microbiological soil properties, preventing erosion, increasing water holding capacity, cation exchange capacity, nutrient absorption by plants. Further a progressive carbon sequestration in soil with the consequent mitigation of climate changes occurs whereas the non-use of organic fertilizers produces a loss in C stock in soil as carbon dioxide in the atmosphere. The degradation of soil quality is reflecting on the crop yields of the ready-to-eat food of the Plain of Sele river in Campania region in South Italy.</p><p>Objectives of this research was to assess the short-term effect of vermicompost as organic soil conditioner in place of other organic fertilizers under conventional farming. Vermicompost derived from digestate obtained in anaerobic digestion plant of the Plain of Sele using, as ingestate, livestock sewage, olive mill wastewater and whey from dairy industry. Soil solarization was carried out during the summer to control weeds and soil pathogens. The chemical and biochemical properties of soils sampled after 4 days from soil amendment were investigated to determine the correlation between the use of vermicompost as organic soil conditioner and C stock, nutrient availability, and crop yields. Solarization negatively affected soil respiration and overall enzymatic activities compared to plots without the treatment. Vermicompost as well as pellet, used as other organic soil conditioner, increased soil respiration only in not solarized plots. Conversely no significant changes in term of microbial biomass carbon among treatments occurred. Different responses in terms of crop yields of rocket were observed in plots cultivated under diverse treatment: solarized plots produced greater amount of rocket than not solarized plots and plot amended with vermicompost showed the best performance among solarized ones.</p><p>This work was part of the project “Sustainable management of soil fertility in the Sele Plain to produce ready-to-eat food as cover crops through organic amendment deriving from local livestock sector” funded by PSR Campania 2014/2020.</p>


Irriga ◽  
2009 ◽  
Vol 14 (2) ◽  
pp. 135-144
Author(s):  
Dolores Wolschick ◽  
Joaquim Basso

CONTEÚDO DE ÁGUA No SOLO e produção DE RABANETEem função de  diferentesDOSES de condicionador ORGÂNICO de solo  Dolores Wolschick; Joaquim BassoUniversidade para o Desenvolvimento da Região e do Pantanal (UNIDERP), Campo Grande,  Mato Grosso do Sul,  [email protected]  1 RESUMO Condicionadores de solo são materiais adicionados ao solo para otimizar suas propriedades físico-hídricas. O objetivo deste trabalho foi avaliar a influência de doses de condicionador orgânico de solo no conteúdo de água no solo e na produção de rabanete (Raphanus sativus L.). O experimento foi conduzido em casa de vegetação com 30 vasos plásticos, contendo2,6 kg de solo e 5 doses de condicionador de solo orgânico (0,0; 0,035; 0,070; 0,105;0,140 Kg por vaso) e 6 repetições. Metade dos vasos foi mantida na umidade da capacidade de campo e a outra metade, a partir do desbaste, sem irrigação até o final do ciclo da cultura. Foram avaliados a massa de matéria fresca e seca de plantas, diâmetro de raiz e consumo de água durante o ciclo da cultura. A adição do condicionador de solo aumentou o conteúdo de água no solo na capacidade de campo e apresentou tendência de diminuição da necessidade de reposição de água. A dose de0,035 Kg demonstrou tendência de aumento na produção, enquanto a de0,140 Kg por vaso, de diminuição. UNITERMOS: capacidade de campo, turfa, irrigação.  WOLSCHICK, D; BASSO , J. SOIL WATER CONTENT AND RADISH YIELD UNDER DIFFERENT DOSAGES OF ORGANIC SOIL CONDITIONER  2 ABSTRACT Soil conditioners are substances that are added to the soil in order to improve its physical-hydric properties. This work aimed to verify the influence of organic soil conditioner dosages on soil water content and on the radish production (Raphanus sativus L.). The experiment took place in a greenhouse with 30 plastic vases containing2.6 Kg of soil and five dosages (0.035; 0.070; 0.105;0.140 Kg a vase) of the organic soil conditioner and six replications. Half of them were kept in the humidity of field capacity, while the others were not irrigated after thinning until the end of the culture cycle. Fresh and dry matter of radish plant, root diameter and water consumption during growth  were evaluated. The conditioner application increased soil water content at field capacity and presented a decreasing tendency in water reposition necessity. The0.035 Kg dosage showed an increasing tendency in production, while the0.140 Kg dosage showed a tendency to reduction. KEYWORDS: field capacity, peat, irrigation.


2017 ◽  
Vol 4 (2) ◽  
pp. 87-91
Author(s):  
Ekamaida Ekamaida

The soil fertility aspect is characterized by the good biological properties of the soil. One important element of the soil biological properties is the bacterial population present in it. This research was conducted in the laboratory of Microbiology University of Malikussaleh in the May until June 2016. This study aims to determine the number of bacterial populations in soil organic and inorganic so that can be used as an indicator to know the level of soil fertility. Data analysis was done by T-Test that is by comparing the mean of observation parameter to each soil sample. The sampling method used is a composite method, which combines 9 of soil samples taken from 9 sample points on the same plot diagonally both on organic soil and inorganic soil. The results showed the highest bacterial population was found in total organic soil cfu 180500000 and total inorganic soil cfu 62.500.000


Author(s):  
W. R. EMANUEL ◽  
J. S. OLSON ◽  
W. M. POST ◽  
A. G. STANGENBERGER ◽  
P. J. ZINKE

Author(s):  
W. R. EMANUEL ◽  
J. S. OLSON ◽  
W. M. POST ◽  
A. G. STANGENBERGER ◽  
P. J. ZINKE

Sign in / Sign up

Export Citation Format

Share Document