scholarly journals Sewage Sludge as N-Fertilizers for Crop Production Enabling the Circular Bioeconomy in Agriculture: A Challenge for the New EU Regulation 1009/2019

2021 ◽  
Vol 13 (23) ◽  
pp. 13165
Author(s):  
Mirko Cucina ◽  
Patrizia De Nisi ◽  
Simone Sordi ◽  
Fabrizio Adani

The fertilizer framework in the European Union has recently been reviewed by EU Regulation 1009/2019 that excluded sewage sludge from the list of the possible constituents of organic fertilizers relying on their origin, not on their quality. This paper aimed to carry out a complete characterization of sewage sludge obtained from a pharmaceutical manufacturing process (PDSS) to demonstrate that sewage sludge obtained from a standardized and controlled manufacturing process can be safely recycled as organic fertilizer. The agronomic and environmental characteristics of the PDSS product were analyzed and compared to other organic fertilizers. Its fertilizing potential was also evaluated through plant growth trials. PDSS was characterized by a high concentration of total N (6.6% w/w), which was all present in organic form. PDSS also showed a low concentration of heavy metals, an absence of pathogens and low concentrations of organic contaminants. Plant growth trials showed that the PDSS was able to improve lettuce and carrot growth (+25 and +46% of dry weight compared to the unfertilized control), as well as their physiological status. Considering all the results, the exclusion of sewage sludge relying only on its origin and not on its quality appears to conflict with the principles of the circular bioeconomy.

2021 ◽  
pp. 55-66
Author(s):  
Mulyati Mulyati ◽  
Baharuddin AB ◽  
R Sri Tejo Wulan

The use of inorganic fertilizers has an important role in increasing plant growth and production. But it also causes various problems such as decreasing soil organic matter, soil acidity, soil degradation, nutrient imbalance and increasing environmental pollution. Therefore, it needs to be balanced with the provision of organic fertilizers. A field experiment was conducted to study the effect of application of various doses of inorganic and organic fertilizers on N, P, K nutrient uptake and maize plant growth. The experimental design used was a randomized block design arranged in a factorial manner consisting of two factors. The first factor is the dose of inorganic fertilizer (A): 0, 150 and 300 kg ha-1 phonska and the second factor is organic fertilizer plus (P): 0, 10, 20 tons ha-1. The two factors were combined and each treatment combination was repeated three times. The data obtained were analyzed by analysis of variance at the 5% level of significance. The results showed that there was no interaction between the application of inorganic and organic fertilizers on the growth and nutrient uptake of N, P and K. However, the application of inorganic and organic fertilizers had a significant effect on all tested agronomic traits except for plant height. Nutrient uptake of N, P and K also increased significantly due to the application of inorganic and organic fertilizers. The balance of inorganic and organic fertilizer application increases the availability of nutrients as well as the uptake of N, P, and K nutrients by maize plants.


2019 ◽  
Vol 32 ◽  
pp. 262-271
Author(s):  
Huda H. Aziz ◽  
Myson M. Kadim ◽  
Mohsen A. Desher

The experiment conducted during 2018-2019 to study effect of added 15 and 30 t.h-1 level of three kinds of decomposing organic fertilizers on some chemical properties for two varieties of tomato (Red flower F1 and Waad RZ) in field of agricultural experiments station college of Agriculture, University of Basrah. Results showed a significantly effect of hybrid (Red flower F1) compared with hybrid (Waad RZ) on leaves content of : Total chlorophyll, total N and total soluble carbohydrate, increased 10.6, 14.39 and 8.84% respectively. Results showed a significant effect of organic fertilizer especially 15 t.ha-1 poultry fertilizer on total chlorophyll and total N in leaves content with increase of 67.75 and 110.31% respectively, 30 t.ha-1 poultry fertilizer significantly increased of total P in leaves content increased 143.48%. Decomposing cattle fertilizer with 30 t.ha-1 significantly increased of total K in leaves content with increased 181.30% also corn residues fertilizer with 30 t.ha-1 significantly increased of total soluble carbohydrate with 109.89%. Interaction between experiment factors were significantly effect on total chlorophyll, K and soluble carbohydrate in leaves content. Study also revealed different influences of organic fertilizer as follow: The poultry fertilizer (15 t.ha-1) increased the total leaves content of chlorophyll and N with 67.75 and 110.31% respectively. While the poultry fertilizer (30 t.ha-1) significantly increased the total leaves content of P with 143.48%. The decomposed cattle fertilizer (30 t.ha-1) significantly increased the total leaves content of K with 181.30%. Whereas corn residues (30 t.ha-1) significantly raised the total leaves content of soluble carbohydrate with 109.89%.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Sarah Kristi Pertiwi ◽  
Khairul Rizal ◽  
Yudi Triyanto

AbstractThe Effect Of POC (Liquid Organic Fertilizer) Application Of Goat Urine And Natural Pesticides On The Growth Response Of Long Bean (Vigna Sinensis L.) Plant In Mountain Village Bilah Hulu Labuhan Batu, Sarah Kristi Pertiwi1, Khairul Rizal S.TP, M.Si2, Yudi Triyanto SP, M.Si3 Program Studi Agroteknologi, Fakultas Sains dan Teknologi Universitas Labuhanbatu. Long beans (Vigna sinensis L.)  are a vegetable plant as a source of vitamins and minerals. Long beans (Vigna sinensis L.)  are also a type of legume that is widely cultivated in Indonesia. Gunung Selamat Village is one of the villages with a variety of agricultural crops, one of which is long beans (Vigna sinensis L.). However, this community service was carried out because of the many problems faced by farmers, which caused the growth of long beans (Vigna sinensis L.)  to decline. The decline in production was caused, among others, by climate, soil, fertilizers, pests and diseases. Therefore, this community service is carried out to increase plant growth and reduce the use of synthetic fertilizers that can damage the soil ecosystem, therefore it is given the treatment of sprinkling liquid organic fertilizers on the soil and spraying vegetable pesticides from papaya leaves to prevent pests and diseases that attack long bean plants (Vigna sinensis L.). This treatment was designed to see the results of the growth rate response in long bean plants (Vigna sinensis L.). Keywords: Long Beans (Vigna sinensis L.), Liquid Organic Fertilizer, Natural Pesticides, Long Bean (Vigna sinensis L.) Plant Growth Response. AbstrakKacang Panjang (Vigna sinensis L.) merupakan salah satu tanaman sayuran sebagai sumber vitamin dan mineral. Kacang panjang (Vigna sinensis L.)  juga merupakan jenis kacang-kacangan yang banyak diusahakan di Indonesia. Desa Gunung Selamat merupakan salah satu desa dengan penghasilan tanaman palawija yang beragam salah satunya kacang panjang (Vigna sinensis L.). Namun, pengabdian masyarakat ini dilakukan karena banyak permasalahan yang dihadapi oleh petani sehingga menyebabkan pertumbuhan kacang panjang (Vigna sinensis L.)  menurun. Turunnya produksi ini antara lain disebabkan oleh iklim, tanah, pupuk, hama dan penyakit. Maka dari itu pengabdian masyarakat ini dilakukan untuk meningkatkan pertumbuhan tanaman serta mengurangi penggunaan pupuk sintetik yang dapat merusak ekosistem tanah, maka dari itu diberi perlakuan penyiraman pupuk organik cair pada tanah serta penyemprotan pestisida nabati dari daun pepaya untuk mencegah hama dan penyakit yang menyerang tanaman kacang panjang (Vigna sinensis L.). Perlakuan ini dibuat untuk melihat hasil respon tingkat pertumbuhan pada tanaman kacang panjang (Vigna sinensis L.).


2020 ◽  
Vol 898 ◽  
pp. 64-70
Author(s):  
Erna Lestianingrum ◽  
Misnen

Fertilization for agriculture and plantation nutrition still dominated by chemical fertilizers. Organic fertilizers utilization for soils is believed has not had the same quality as existing fertilizer standards. On the other hand, increasing waste problems has become environmental issues that have not been properly resolved. MSW process by using MBT Method is able to change the waste management system and produce RDF Fluff products as alternative fuels and compost fertilizers. Research have showed that the quality of organic fertilizer from the Mechanical Biological Treatment (MBT) process met the SNI 19-7030-2004 parameters with the total N = 1.38%, P2O5 = 0.66% and K2O = 2.34%. Production cost of making organic fertilizer is lower than NPK and the amount used for ground application is higher than NPK. Market confidence began gradually improving due to consumer increasing demand.


2020 ◽  
Vol 99 (3) ◽  
pp. 259-264
Author(s):  
А.К. K. Маненко ◽  
Галина Михайловна Ткаченко ◽  
О.П. P. Касиян ◽  
С.Т. T. Юрченко

Introduction. Nowadays, in front of large cities, there is an acute problem for finding ways of environmentally safely dispose of accumulated sewage sludge and the possibility of its use. The most profitable way to utilize sewage sludge is to use them as organic fertilizers in agricultural production due to the high content of biogenic elements (nitrogen, phosphorus, potassium) and organic substances in their composition. However, the presence of heavy metals, pathogens, and other toxicants necessitates the study at the regional level the possibility of using these sediments as fertilizers. In each specific case, it is necessary to apply a scientific approach to the use of sewage sludge, since their composition is characterized by a qualitative and quantitative variation of chemical compounds. The purpose of the study was a hygienic justification for the possibility of using sludge for wastewater treatment from the municipal facilities in agricultural production as an organic fertilizer. Material and methods. The object of the study was sludge after treatment with flocculants and centrifugation and sludge stored on the sites of Lviv municipal facilities for 1, 6 and 18 months. In the experiment, the distribution of sludge components in the “plant-soil” dynamic system, as well as the degree of their accumulation in test plants, was determined. Quantitative determination of the of chemical elements content in samples of sludge and phytomass was carried out by atomic absorption spectrophotometry. Results. The effectiveness of the use of sludge from the municipal facilities for wastewater treatment in agricultural production as an organic fertilizer has been studied. It was found that the sludge dose of 50 tons/ha, using immediately after centrifuge, can not be used in the fields as a fertilizer. This dose caused a high phytotoxic effect on plants. The dose of used sludge (30 tons/ha after 1.5 years of maturing on silty areas) had a less pronounced phytotoxic effect, but the fact of fluorine, lead, cadmium, arsenic, mercury and manganese translocation from soil into the plants in high quantities was observed. This dose also cannot be used in the fields as a fertilizer. The use of a smaller dose should be justified by additional experiments.


2008 ◽  
Vol 18 (2) ◽  
pp. 215-226 ◽  
Author(s):  
K. Delate ◽  
C. Cambardella ◽  
A. McKern

With the continuing 20% growth rate in the organic industry, organic vegetable crop production has increased to 98,525 acres in the United States. The requirement for certified organic vegetable producers to implement a soil-building plan has led to the development of soil fertility systems based on combinations of organic fertilizers and cover crops. To determine optimal soil fertility combinations, conventional and organic bell pepper (Capsicum annuum) production was evaluated from 2001 to 2003 in Iowa, comparing combinations of two synthetic fertilizers and three compost-based organic fertilizers, and a cover crop treatment of hairy vetch (Vicia villosa) and rye (Secale cereale) in a strip-tilled or fully incorporated cover crop system. Organic pepper growth and yields equaled or surpassed conventional production when nitrogen (N) was provided at 56 or 112 kg·ha−1 from compost-based organic fertilizer. Soil analysis revealed higher N in plots where cover crops were tilled compared with strip-tilled plots, leading to recommendations for sidedressing N in strip-tilled organic pepper production. Increased incidence of disease was also detected in strip-tilled plots. Postharvest weight loss after 6 weeks in storage was similar in organic and conventional peppers. The addition of calcium and sulfur products in conventional or organic fertilizer regimes did not increase pepper production or postharvest storage potential. Despite application challenges, cover crops will remain as critical components of the organic farm plan for their soil-building benefits, but supplementation with approved N sources may be required for optimal pepper production. Organic growers should conduct their own tests of organic-compliant soil amendments to determine cost effectiveness and value for their site before large-scale application.


HortScience ◽  
2019 ◽  
Vol 54 (9) ◽  
pp. 1585-1592
Author(s):  
John Rojas ◽  
Julian Quintero ◽  
Yhors Ciro ◽  
Javier Silva

The global annual production of shrimp is nearly 4.8 million metric tons, generating almost half this weight in waste. The aim of this study was to assess the development and crop production of legumes fertilized with alkaline sonicated shrimp waste under greenhouse conditions. Plants were grown separately under the following fertilization regimes: untreated soil, untreated cotton substrate, two commercial fertilizers [commercial organic fertilizer (COF) and commercial synthetic fertilizer (CSF)], and shrimp waste having hydrolysis degrees of 0%, 15%, 18%, and 25%. Electrical conductivity of shrimp-based fertilizers (SBFs) decreased with hydrolysis degree. However, pH (6.7–6.9), densification (0.2–0.3 g·cm–3) and conductivity (10–21 µS·cm–1) of soil was unaffected by fertilization. Furthermore, CSF had the greatest ionic exchange capability. Sonolysis resulted in an assimilable source of C, N, and O, mainly derived from carbohydrates and proteins, and increased the availability of minerals such as Ca and phosphate. The greatest plant growth in both legumes was achieved when treated with CSF, whereas the raw shrimp waste caused a beneficial plant growth and crop yield mainly for Phaseolus vulgaris. All fertilizers showed typical type II isotherms, and soil substrate per se exhibited the largest water uptake. The soil microbiota increased during the growing cycle and then decreased as the reproductive phase started. In fact, soil planted with Phaseolus vulgaris showed a greater microbial population than Pisium sativum. These shrimp waste hydrolysates can be used as alternative organic soil fertilizers and are suggested as substitutes for synthetic fertilizers.


2018 ◽  
Vol 2 (2) ◽  
pp. 44
Author(s):  
Mujiyo Mujiyo ◽  
Sumarno Sumarno ◽  
Suryono Suryono ◽  
Novi Rahmawati Sutopo

Micro small business (UKM: in indonesian) "Sejahtera" is a chicken farm that has problems with chicken manure that has not been utilized properly. The farmer group "Bejo Agro Farm" is a plant nursery located in Mojogedang District, Karanganyar Regency. Availability of soil nutrients is one of the determinant factors of the quality of plant seeds. Availability of nutrients for plants can be obtained by applying organic fertilizers. Applications of microbial enriched organic fertilizers can be used as an alternative to maintain plant quality. Microbial enriched organic fertilizers contain several types of microbes that can support plant growth. Organic fertilizer comes from chicken manure coupled with several bio-starter containing beneficial microbes. The organic fertilizer used has been tested for its quality, to determine the content of the nutrient. The technology in the form of microbial enriched organic fertilizer can help "Bejo Agro Farm" to maintain the quality of plant seeds and be able to solve the problems of chicken manure waste of "Sejahtera" chicken farms.


Author(s):  
Priyadarshini Pillai ◽  
M. Punitha ◽  
S. Ranjitha ◽  
R. Ragavi ◽  
G. Roopa ◽  
...  

Composting is an alternative for recycling biodegradable organic waste, transforming it into organic fertilizer that can be used as agricultural nutrients, avoiding its disposal in landfills. This study evaluated the composting of Jyoti Nivas college hostel kitchen waste using Arka Microbial Consortium, with a view to its applications on Germination percentage, Seed Vigour Index and plant growth parameters of French bean (Arka arjun) and Amaranthus (Arka arunima) seeds. Arka microbial consortium (AMC) is carrier based product which contain nitrogen fixing, potassium and zinc solubilizing plant growth promoting microbes used as decomposers. The experiment was conducted under greenhouse conditions in a randomized block design, with two treatments and three replicates. Assessments of plant growth parameters were performed and results suggest that using Arka Microbial Consortium with bio compost is suitable for better production French bean (Arka arjun) and Amaranthus (Arka arunima) seeds that may increase soil fertility and this integrated approach could be contributed to improve crop production.


Agriculture ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 260
Author(s):  
Shuang Li ◽  
Xinghai Zhao ◽  
Xiangsheng Ye ◽  
Limei Zhang ◽  
Lei Shi ◽  
...  

Condensed molasses soluble (CMS) has been reported to be rich in mineral nutrients and organic matter. However, the potential of CMS as a new organic fertilizer for crops is poorly understood. In this study, we explored the effects of CMS on seed germination, plant growth and field production of Brassica napus through seed germination, hydroponics and field trials. The results demonstrated that a small amount of CMS (0.05 g L−1) on the basis of normal nutrient supply significantly increased plant biomass, root vigor and root development, and improved the superoxide dismutase (SOD) activity of shoot at the seedling growth stage. Nevertheless, a high concentration of CMS (0.2 g L−1) inhibited plant growth, root development, the activities of peroxidase (POD) and catalase (CAT), and elevated accumulation of malondialdehyde (MDA) in the shoot at the same stage. In the field, exogenous application of CMS as well as chemical fertilizers increased seed yield up to 20% compared with chemical fertilization only. Collectively, our results conclude that the appropriate amount of CMS could promote the growth and development of rapeseed at both seedling and mature stages. Hence, CMS may be used as a new potential organic fertilizer for crop production in the future.


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