scholarly journals The Insects as a Workforce for Organic Fertilizers Production – Insect Frass

2021 ◽  
Author(s):  
Regina Menino ◽  
Daniel Murta

Following the evolution of composting technology, the process of digestion of a biological substrate by insects (entomocomposting) represents the last stage; however, from its initial context of producing an organic fertilizer, the role of entomocomposting has been imposing itself (due to increasing demographic pressure) mainly in the safe disposal of organic waste (in rampant growth) and in the breeding of insects for food and feed, for the sake of food security. Both these last goals converge in the first, as the safest disposal of the compost is its use as organic fertilizer; but the organic substrates are of a diversified nature, as are the species of insects which have already proved themselves in entomocomposting; hence, for each of the purposes in view, the choice is vast and, in the same way, the entomocompost composition is wide-ranging. Furthermore, various types of organic substrates, in addition to a microbial flora with symbiotic effects, may sometimes be able to transmit to the frass a harmful load of heavy metals and/or, depending on the composting insect agents, the presence of microorganisms harmful to crops and to humans and animals; in these situations, the former should be encouraged, and the latter counteracted through appropriate composting technology. Directives and legislation in this area, if properly considered, constitute a fundamental basis for ensuring the appropriate use of this particular kind of organic fertilizer. Apart from the production of insects for food and feed, where the choice of which insect is determined at the outset, the preference for the insect to be used in entomocomposting should be considered according to its proficiency in biological digestion of the organic substrates available for this purpose and the fertilizing quality of the frass produced. Although a multitude of species have been evaluated, to date, for the digestion of organic substrates, most have been used in assessing their specific potential for certain functionalities of frass related to crop nutrition and health, but there are few which, either by prolificacy, proficiency or rapidity in digesting substrates, exhibit capacity to compete in rural environment; nevertheless, new species could be evaluated in the framework of the research of competitors for entomocomposting of all or each substrate type and for each of the main anticipated objectives, meanwhile, genetic improvement to obtain new strains specialized for different organic substrates has already started to take its first steps. In addition to the binomial “insect x substrate” the composting technology constitutes the third fundamental factor for the efficiency of the process. Insects use as a composting agent has been suggested several decades ago, but it was only in the last decade that this process grown from the garden to the factory. Within rural areas, entomocomposting could play a key role within a circular economy, where recycling and reusing potentially polluting wastes safely returns to the land the enduring fertility that enables the sustained production that generated them, requiring no particularly upscale installations, equipment or technical training; it can, therefore, be adapted to any size of agricultural holding, from smallholdings to large industrial holdings, on the other hand, and in order to obtain a controlled production and high quality entomocompost, it is needed to implement industrial technologies and the composting unit can achieve a very high production per square meter, comparing with traditional composting methods. However, whether from the perspective of agriculture, livestock or forestry, the production of waste for entomocomposting always falls far short of the necessary scale, and therefore always requiring the use of biodigested organic waste from agricultural industries, provided that the necessary precautions are taken; in any case, it always constitutes added value, due to the products it generates, in addition to the inestimable value of the productive disposal of potentially polluting products. Despite all the advantages mentioned above, the controversy over the organic vs. mineral fertilizer option persists, often fuelled by myths on both sides, but the successes already achieved with insect entomocomposts, such as the black soldier fly (Hermetia illucens L.) or the mealworm (Tenebrio molitor L.), in field trials, which are gradually adding up, anticipate an important role for insects in safeguarding global food and environmental security.

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 332
Author(s):  
Hayden Fischer ◽  
Nicholas Romano ◽  
Amit Kumar Sinha

Nutritionally unbalanced organic waste can be converted into potential resources for animal and plant farming by culturing black soldier fly (Hermetia illucens) larvae (BSFL) and prepupae (BSFP). BSFL and BSFP are rich sources of protein and lipids, while the leftover excrement called “frass” can be used as an organic fertilizer. Using readily available resources, BSFL were cultured on spent coffee, donut dough or an equal blend for 35 days. Survival, productivity, daily pupation and biochemical composition of BSFL and BSFP were measured along with the nitrogen-phosphorus-potassium values of the frass. Survival was highest in the blend compared (81%) to spent coffee (45%) or dough (24%); however, BSFL and BSFP were significantly longer and heavier from dough. Stage and food significantly influenced the protein, lipid and glycogen content of the BSFL and BSFP, which tended to be higher in the latter. While fatty acids were often significantly higher in BSFL fed spent coffee, the amino acid composition of BSFL was generally higher in dough. Frass from the blend had significantly highest nitrogen content, while potassium and phosphorus were significantly higher and lower from spent coffee, respectively. Although coffee and donut dough were suboptimal substrates for BSFL, a blend of these produced BSFL and frass that were nutritionally comparable to soybean meal and many organic fertilizers, respectively.


2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Hendrawani Hendrawani ◽  
Husnul Hatimah ◽  
Hulyadi Hulyadi

Liquid organic fertilizer is a solution from the fermentation of organic materials by involving microorganisms as a destructor of macromolecular compounds into minerals that are easily absorbed by plants. The quality of organic fertilizers is the main ingredient to get productive plants. The quality of organic fertilizer is determined by the concentration of macro nutrients such as nitrogen (N), potassium (K), and phosphorus. Getting high amounts of macronutrients fertilized organically is not easy. Macro-nutrients in organic waste with high concentrations are very difficult to obtain because each organic waste does not have all three macro-nutrients simultaneously. It takes a combination of organic waste to increase the concentration of macro nutrients in organic fertilizers. The combination of tofu whey with banana waste is one technique to obtain organic fertilizers that are high in phosphorus content. This study aims to obtain the effect and conditions of fermentation on the addition of mass of banana waste to produce optimum levels of phosphorus (P) in liquid fertilizer of tofu waste. The type of research used is pre-experimental research. The design of this study used a completely randomized design (CRD) with two factors, namely the first factor was the mass of banana waste (X) (X1 = 250 grams, X2 = 500 grams, X3 = 750 grams) and the second factor was the fermentation time (Y) (Y1 = 14 days, Y2 = 28 days, Y3 = 42 days). Determination of phosphorus content using UV-Vis spectroscopy instrument. Parameters measured were phosphorus (P) levels in liquid organic fertilizer. The independent variables in this study were the mass of banana waste and fermentation time, while the dependent variable in this study was the phosphorus content of the liquid fertilizer produced. The results of the analysis show that the phosphorus content (P) produced is X1Y1 = 0.1%, X2Y1 = 0.5%, X3Y1 = 0.09%, X1Y2 = 0.5%, X2Y2 = 2%, X3Y2 = 1.9 %, X1Y3 = 0.2%, X2Y3 = 0.5% and X3Y3 = 0.5%. There is an effect with the addition of a mass of banana waste as much as 250 grams at a 12-day fermentation time. It can be concluded that the liquid fertilizer produced has exceeded the SNI quality standard.


2021 ◽  
Vol 8 (2) ◽  
pp. 86
Author(s):  
Ricky Yadi ◽  
Eddifa Rahman ◽  
Vetrio Monandes

The needs for added value of agricultural products is increasing, both in the form of health benefits and of reducing pollution waste. The sorting-out fruits that are just wasted can still be used as materials that have added value. In general, fruits contain glucose which is the basic ingredient in processing of bioethanol. Even though the quality has decreased, it still contains glucose which can then be fermented into bioethanol or organic fertilizer. Recently, the pharmaceutical and food and beverage industries require a large supply of bioethanol for further processing according to the industrial needs. Meanwhile, agricultural land is increasingly promoting organic farming. The objective of this activity is to produce new products from fruit waste into bioethanol and organic fertilizers that are useful for both the community and the government so that they can be used as the right solution to reduce environmental pollution and create new business opportunities. Bioethanol processing method uses Saccharomyces cerevisiae as a biocatalyst and uses an EM4 activator to produce organic fertilizers. This activity produces an output product in the form of bioethanol 46.78 % and organic fertilizer which contain 1% N.


2021 ◽  
Vol 33 ◽  
pp. 05002
Author(s):  
Cynthia Dewi Gaina ◽  
Filphin Adolfin Amalo ◽  
Maxs U.E. Sanam ◽  
Frans Umbu Datta ◽  
Imanuel Benu ◽  
...  

Camplong II is one of the villages in the Kupang regency dominated by cattle farmers with limited knowledge and skill in managing animal waste. These farmers have the habit of burning organic material that can be used as a fertilizer source, which adversely affects the environment. Therefore, this study aims to improve the knowledge and skills of farmers by training them to make organic fertilizer from a natural compound such as animal manure. Furthermore, the purpose of implementing this community service is to manufacture organic bokashi using organic fertilizers and vegetable products. Other important aspects affecting this community are the level of education, the role of farmers, and the source of information. The result showed that community service activities have provided positive benefits on organic fertilizer and skills in the form of increased knowledge by producing bokashi fertilizer. The final product has benefited from improving household income for farmers in Camplong II village in Kupang, NTT.


2021 ◽  
Vol 6 (1) ◽  
pp. 84-95
Author(s):  
Irmawanty Irmawanty ◽  
Dian Safitri ◽  
Wira Yustika Rukman ◽  
Haerul Syam

The Kalimbu market is one of the traditional markets in South Sulawesi with a very high buying and selling activity. The organic waste that is mostly generated from the activities at the Kalimbu Market is leftover vegetables and fruit. Vegetable and fruit waste provides a big advantage if it is managed properly, which is converted into liquid organic fertilizer through a fermentation process. The liquid organic fertilizers produced can help farmers overcome the high price of synthetic fertilizers and save the earth from pollution. The method used to determine the effect of types of organic waste (vegetable waste and fruit waste) on the physical and chemical quality of solid and liquid organic fertilizers used a randomized block design. Whereas the application of solid and liquid organic fertilizers to the production and nutritional content of potato plants used a treatment consisting of P0: basic fertilizer + without liquid organic fertilizer and P1: basic fertilizer + liquid organic fertilizer. The results of research on the manufacture of liquid organic fertilizer from Kalimbu market waste with vegetable and fruit samples also showed that the two samples required different storage times for composting. Plants treated with liquid organic fertilizer from the Kalimbu market waste have better stem growth, leaf number, and stem number.Keywords: Waste, organic, fermentation, hydroponic


2021 ◽  
Vol 8 (1) ◽  
pp. 18-23
Author(s):  
Ulina Catarina Simatupang ◽  
Widya Lestari

The aims of this study are to compare the feasibility of levels of Nitrogen, Phospor and Kallium liquid organic fertilizers resulting from anaerobic and aerobic, The results of 30 days of decomposition of organic waste made from raw water tofu and anchovy produce liquid organic fertilizer with levels of Nitrogen 0,30%, Phospor 0,18% and Kallium 0,10%. The Phospor content of liquid organic fertilizer produced from the decomposition of organic waste made from raw water tofu and anchovies has met the SNI 19-7030-2004 eligibility standards set by the ministry of agriculture so it is suitable for use on plants. Nitrogen and Kallium levels of liquid organic fertilizer obtained from the decomposition of organic waste made from water tofu, vegetables and fruit water with organic waste made from raw water tofu and anchovies not meet SNI 19-7030-2004 eligibility standards.Keywords: Nitrogen,Phospor,Kallium,Liqiud organic Fertilizers,SNI 19-7030-2004


2020 ◽  
Vol 13 (1) ◽  
pp. 128
Author(s):  
Tamara Righetti Tupini Cavalheiro ◽  
Raquel de Oliveira Alcoforado ◽  
Vinicius Soares de Abreu Silva ◽  
Pedro Paulo Saldanha Coimbra ◽  
Nathânia de Sá Mendes ◽  
...  

Large amounts of organic waste are produced worldwide. This work aims to evaluate the influence of organic fertilizers, onion peel flour (OPF) and fruit and vegetable flour (FVF) on lettuce cultivation. Lettuce seeds were planted in pure soil (P), P with 10% OPF, and P with 3% FVF. Soil and lettuce leaves were analyzed. The addition of OPF and FVF improved soil quality but only in the soil with FVF was there significant lettuce growth and increase of antioxidant activity: Folin (8.89 mg EAG/g FM), FRAP (1.31 mg Fe2+/g FM), ABTS (4.09 mg TEAC/g−1 FM) and ORAC (0.52 mg TEac/g−1 FM). The present results show an improvement in lettuce nutritional quality and the potential of FVF as an organic fertilizer.


PAMBUDI ◽  
2020 ◽  
Vol 4 (01) ◽  
pp. 17-23
Author(s):  
Amri Gunasti ◽  
Abadi Sanosra

Waste generation in Jember and Bondowoso districts is estimated at more than 500 m3day. More than 70% is organic waste. It can have multiple effects. There are three main products produced from this program, the first is composter, the second is HCS bioactivator and the third is liquid compost. The approach method includes stages: a). Socialization of PKMS program on Composter and Compost Making Technology b). Preparation of social preconditions, i.e. Coordination with the Gayo Jember Community regarding solving problems faced by members c). Implementation of the Composter Making technology and compost technology application programs, both technical and non-technical for the community, d). Monitoring, evaluation and reporting. The implementation of the Community Stimulation Partnership Program (PKMS) Composter Technology and Household Scale composting will improve the optimization of household waste function as raw material for organic fertilizer, increasing the income and welfare of members of the Gayo Jember-Bondowoso Community.


HortScience ◽  
2017 ◽  
Vol 52 (12) ◽  
pp. 1796-1803 ◽  
Author(s):  
Deron Caplan ◽  
Mike Dixon ◽  
Youbin Zheng

In the expanding North American medical cannabis industry, growers lack reliable and systematically investigated information on the horticultural management of their crops, especially with regard to nutrient management and growing substrates. To evaluate organic substrates and their optimal nutrient management, five rates that supplied 57, 113, 170, 226, and 283 mg N/L of a liquid organic fertilizer (2.00N–0.87P–3.32K) were applied to container-grown plants [Cannabis sativa L. ‘WP:Med (Wappa)’] in two coir-based organic substrates. The trial was conducted in a walk-in growth chamber and the two substrates used were ABcann UNIMIX 2-HP (U2-HP) with lower container capacity (CC) and ABcann UNIMIX 2 (U2) with higher CC. U2-HP produced 11% higher floral dry weight (yield), 13% higher growth index (GI), 20% higher ∆9-tetrahydrocannabinol (THC) concentration, 57% higher THC yield (per plant), 22% higher Δ9-tetrahydrocannabidiolic acid (THCA) yield, and 20% higher cannabigerolic acid (CBGA) yield than U2. Increasing fertilizer rate led to increased growth and yield but also to a dilution of THC, THCA, and CBGA. In U2-HP, to maximize both yield and cannabinoid yield, the optimal organic fertilizer rates were those which supplied 212–261 mg N/L. For U2, the highest applied rate, that supplied 283 mg N/L, maximized yield; although lower rates delivered higher cannabinoid concentrations in dry floral material. The results on these substrates and recommended fertilizer rates can serve as a guide when using other organic fertilizers and substrates; although results may differ with cannabis variety.


2021 ◽  
Vol 905 (1) ◽  
pp. 012011
Author(s):  
M T S Budiastuti ◽  
Supriyono ◽  
I R Manurung ◽  
D Setyaningrum ◽  
A I Nurmalasari ◽  
...  

Abstract Management of Indigofera tinctoria as a natural dye produces organic waste that has not been utilized. One of the proper managements of organic waste is to process it into organic fertilizer. This study examines the role of organic fertilizer waste and mycorrhizae on the growth and yield of Indigofera tinctoria. The study used a completely randomized block design with two factors: organic waste fertilizer and mycorrhizae. The results showed that organic fertilizers and mycorrhizae did not affect the net assimilation and leaf area indexes. The combination of organic fertilizers with mycorrhizae supports leaf growth. The combination of 400 g.plant−1 organic fertilizer and 10 g.plant−1 mycorrhizal fertilizer increased the number of leaves by 257%. Organic fertilizer has a significant effect on the fresh weight of the crown, fresh weight and root biomass. Organic fertilizer dose of 200 g.plant−1 increased fresh root weight, root biomass and fresh crown weight by 68.5%, 68.29% and 63.27% respectively. Mycorrhizae 10 g.plant−1 increased root length by 23.54%. Leaf growth correlated with length, fresh weight and root biomass. Organic fertilizer from the extraction of Indigofera tinctoria is an effort to achieve zero waste to support plant growth.


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