The intensification of agricultural practices and the consequent dramatic decrease in soil organic matter has increased the use of organic fertilizer to recover soil fertility and plant productivity. The aim of this study was to compare the effect of three amendments obtained from the recycling of urban and agri-food wastes on rhizosphere microbial community, soil, and plant nutrient status. The experiment was carried out on rhizobox-grown, 1-year-old vines of Sangiovese (Vitis vinifera L.), grafted onto 110 Richter (V. berlandieri × V. rupestris) planted in April 2023. Twenty-four rhizoboxes were filled with soil collected from a field trial in which three types of amendments had been applied since 2019. In detail, the complete randomized experimental design (with four replications) compared the following treatments: (1) municipal organic waste compost (ACM), (2) agri-food organic waste compost (ACF), (3) defecation gypsum (GDD), and (4) a control that received 60 kg of N ha⁻¹ year⁻¹ (CK). The application of the amendments increased the soil concentration of total C, total N, and pH. The application of ACM increases soil K and Zn and the concentration of N and K in plant roots. The application of all the amendments increased leaf N concentration in comparison with CK, but only ACF increased leaf P. ACM was the most effective in promoting microbial biodiversity, increasing phyla like Bacillota, Pseudomonata, and Bacteroidota, including genra like Bacillus, Neobacillus, Paenibacillus, and Pseudomonas. ACF promoted Nitrosospherota and Chitinophaga, and GDD promoted Chloroflexota and Agrobacterium.

Vermicomposting is an environmentally sustainable, economically viable, and agronomically valuable method for converting organic waste into nutrient-rich soil amendments, thereby supporting sustainable development. However, the fertilization efficiency of vermicompost can vary significantly depending on the physicochemical properties of the feedstock used. This study aims to compare different feedstocks on vermicompost and evaluate their performance on soil fertility and plant nutritional status. Organic matter (OM), pH, salinity (EC), total Kjeldahl nitrogen (TKN), total phosphorus (TP) and total potassium (TK) of various vermicompost samples were taken into consideration to evaluate their fertilization efficiency as performance determinants in terms of plant growth, plant nutritional status, yield, crop quality and cost with the aim of determining the weights of the specific parameters in the total performance using multi-criteria decision-making (MCDM) methods. The integrated ENTROPY-TOPSIS method was used. Twenty-one different vermicompost feedstock analyses were collected from the literature and compared in order to create an agronomic performance ranking based on the selected criteria. The ENTROPY method revealed that the TP was the most influential factor (21.6%), followed by the EC (20.7%) and the TK (18.5%), while the OM had the lowest impact (11.3%). Based on the TOPSIS ranking, vermicompost from brewer’s spent grain achieved the highest performance, followed by cow manure plus rice straw and olive pruning waste, whereas paper waste ranked at the bottom. A comparative analysis with other objective MCDM weighting methods proved strong correlations, particularly with WENSLO, MPSI and LODECI methods, confirming the robustness of the ENTROPY method.

Vermikompostlama, atık dönüştürme sürecini iyileştirmek ve daha iyi bir son ürün üretmek içinepigeic solucan türlerinin kullanıldığı basit bir biyoteknolojik kompostlama işlemidir. Başka bir ifadeyle,vermikompost, farklı organik atıkların işlenmesinden sonra elde edilen solucan dışkısı olup, bileşimifarklıdır ve solucanların yediği yeme direkt bağlıdır. Vermikompost üretiminde yaygın olarak kullanılantoprak solucan türünün Eisenia fetida olduğu bilinmektedir. Solucanlar organik maddeyi çözer vemetabolik ürünler yoluyla küçük organik bileşikleri veya mineral besinleri salarlar. Organik madde stabilizeedilirken çeşitli besin maddelerinin elverişliliği ve pH artar. Solucanların ve vermikompostun toprağa,bitkiye, ürüne ve çevreye çok fazla yararları vardır.Bu çalışmada çeşitli organik atıkların kullanılmasıyla edilen iyi bir organik gübre olan vermikompostunönemini ortaya koyabilmek amaçlanmıştır. Atık yönetiminde en başarılı organik gübre üretimmodellerinden birisi olması açısından da bu konuda gerek dünyada ve gerekse ülkemizde çok sayıdaakademik çalışmalar yapılmaktadır. Çeşitli atıklardan elde edilen vermikompostun toprak organik maddesive su tutma kapasitesini artırması, organik gübrelerin temel ABC’si olarak bilinmeli bunun dışında dabilinen birçok yararları nedeniyle vermikompost üretimi ve tarım-peyzaj alanlarında gübreleme amacıylakullanılmasının yaygınlaştırılması gereklidir. İklim değişiminin hızla olumsuz olarak etkilediği tarımsalüretimde, organik gübre kullanılmasının gerekliliği de çalışmanın kapsamı dahilindedir.

Fertilization management is crucial mainly during the walnut training phase in order to obtain good plant formation, which is essential for guaranteeing future optimal yield. The aim of the present experiment was to evaluate the effect of different organic amendments on plant nutritional status and soil fertility in young bearing walnut trees. The experiment was conducted in 2023 and 2024 on walnut trees of the cultivar Chandler grafted on Juglans regia, planted in 2021. Since 2023, plants were yearly treated as follows: 1. non-fertilized control; 2. mineral fertilization; 3. application of municipal solid waste compost; and 4. application of compost from agri-food chain scraps. Soil amendments were supplied at the same rate as mineral fertilizer (120 kg N ha⁻¹) in spring on the tree row on a 1.5 m wide strip, while mineral fertilizer was split in two applications (50% in spring and 50% in summer). Plant growth, measured with trunk diameter and pruning wood weight, was enhanced by mineral fertilization, followed by compost, in comparison to the control. Soil mineral N was too high in relation to plant needs, with a consequent increase in the risk of nitrate leaching. Organic amendments increased soil nutrient availability, microbial activity, and carbon concentration, which, in the long term, could provide a positive environmental effect related to its sequestration into the soil.

Sustainable land management and accurate land suitability assessment are fundamental pillars for ensuring long-term agricultural productivity and environmental health.. In this study, the FAO's sustainable agricultural land suitability assessment for wheat was carried out using the criteria of slope from topographical factors and pH, calcium carbonate (CaCO₃) and OM from critical soil factors. The aim is to assess the suitability of the land through the integration of geospatial data with fuzzy logic models and to contribute to sustainable agricultural activities. Soil samples were analysed for basic properties. Digital soil maps were produced using ordinary kriging. The Mamdani fuzzy inference technique was used for classification of the land into appropriate classifications in accordance with FAO standards. The study area was classified moderately (59.41%) and slightly (40.58%) suitable for wheat. High calcium carbonate (CaCO₃) concentration, low organic matter were identified as limiting factors. Soil management is recommended to rehabilitate marginally suitable sites and to use them with care. This research highlights the possibility of facilitating sustainable agricultural planning in semi-arid environments through the combination of fuzzy logic with GIS-based techniques for proper land assessment.

Soil is one of the most important components of agricultural production. Therefore, healthy soils are increasingly needed for food security, nutrition goals and combating climate change. Soil health is critical to both ecosystem balance and human life. Soil not only supports plant growth, it also performs many important functions, from storing water to sequestering carbon. In addition, soil health is a critical factor not only for agriculture and food production but also for general environmental health, combating climate change and sustainable development. In this study, it was aimed to determine the sustainable productivity capacities by evaluating the analysis results of 60 soil samples taken from the fields in Süleymanpaşa district of Tekirdağ province, which were exposed to intense agricultural activities with wheat-sunflower rotation. The average pH, total salt, organic matter and lime contents of the samples taken were determined as 7.28, % 0.40, % 1.29 and % 3.62 respectively. It was determined that the majority of the soils (47 units) were in the "loam" texture class. The total N contents of the soil samples were determined as the lowest % 0.02 and the highest % 0.15. The average P, K, Ca, Mg, Fe, Mn, Zn and Cu contents of the soil samples were determined as 14.94, 211.68, 5393.15, 408.86, 13.60, 12.71, 0.88 and 1.05 mg kg-1 respectively. When the average organic matter and total N contents in the samples were evaluated, it was determined that they had low levels of organic matter and total N contents. Considering the average values of the soil samples, it was determined that they were "high" in terms of Ca and Fe; "low" in terms of Mn and "sufficient" in terms of P, K, Mg, Zn and Cu. The biggest benefit of these studies is that, the correct use of fertilizer also has positive benefits in terms of economy and the environment. For this reason, organic fertilizers must be included in the fertilization programmes of soils with low organic matter.