scholarly journals Quality of Organic Compost for Vegetable Planting

Proceedings ◽  
2020 ◽  
Vol 38 (1) ◽  
pp. 14
Author(s):  
Segatelli ◽  
Pimenta ◽  
Peixoto ◽  
Silva ◽  
Bosco

Composting is a technique used to obtain a nutrient-rich, plant-like organic compost. Considering that there are few studies that shows the efficiency of these composts in the cultivation of vegetables, the objective of this study was to evaluate, in the cultivation of lettuce, the quality of the final compost obtained from tree pruning, dairy sludge and coffee grounds—compost 1; grass, dairy sludge and coffee grounds—compost 2; grass, dairy sludge, coffee grounds and boiler ash—compost 3. Lettuce (Lactuca Sativa L.) were planted for the study with the three composts and a control object-without compost, and a portion with NPK fertilizer. The evaluated parameters were plant growth, head diameter, leaf number, dry mass and fresh mass. The results shows statistical similarities between the organic fertilizers and NPK fertilizer in the evaluated parameters and the control plot presented inferior results to the other plots, emphasizing the need for fertilization at each planting.

FLORESTA ◽  
2021 ◽  
Vol 51 (2) ◽  
pp. 381
Author(s):  
Victória Maria Monteiro Mendonça ◽  
Marcos Gervasio Pereira ◽  
Vitória Duarte S Silva ◽  
Ariovaldo Machado Fonseca Júnior ◽  
Sidinei Júlio Beutler ◽  
...  

Urban organic waste has been gaining prominence in the composition of substrates, as it is a source of natural nutrients and a sustainable alternative to mitigate environmental impacts caused by improper waste disposal. The aim of this study was to characterize chemically and physically substrates based on organic waste and to evaluate the development of Colubrina glandulosa seedlings using composted urban tree pruning waste. Treatments consisted of different proportions of organic compost (CP), soil from the A horizon (SAH), aged manure (BM) and vermiculite, kept in tubes (Citropote®) with volume of 1.7 L. C/N ratio, water holding capacity (10 hPa), electrical conductivity, macroporosity, microporosity and total porosity of substrates before their use were determined. Substrate fertility analyses were carried out before and after seedling production. During the development of the seedlings, height (H) and stem diameter (SD) were measured at 60, 90 and 120 days. At 90 and 120 days, the seedlings were divided into shoots and roots to determine the dry mass of each compartment, Dickson quality index (DQI) and contents of nutrients (N, P, K, Ca and Mg). After the analysis of the results, it can be observed that the treatments with high proportions of CP had better physical characteristics, but also showed chemical limitation in the development of the seedlings. Treatments based on BM, SAH and lower proportion of CP had the highest average results for H, SD, H/SD ratio and DQI. 


Nativa ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 118
Author(s):  
Taynara Tuany Borges Valeriano ◽  
Márcio José Santana ◽  
Marcos Vinícius de Jesus ◽  
Letícia De Souza Leite

A produção de alface em ambiente protegido, aliada ao uso de práticas como a irrigação, contribui para o aumento da produtividade e melhoria na qualidade desta hortaliça. O objetivo deste trabalho foi avaliar os métodos do Tanque Classe A, Tanque Alternativo, Blaney-Criddle, Hargreaves e Drenos Coletores, utilizados para estimativa da evapotranspiração de referência (ETo) e evapotranspiração da cultura (ETc), bem como seus efeitos sobre a produtividade da alface americana, em ambiente protegido. O delineamento experimental foi em blocos casualizados com oito repetições e cinco métodos climáticos de estimativa da ETo e ETc, Hargreaves, Blaney-Criddle, Tanque Classe A, Tanque Alternativo (Minitanque) e Drenos coletores de água de percolação. As variáveis analisadas foram, massa total da planta, massa comercial, massa seca da cabeça, número de folhas internas e eficiência do uso da água. Os métodos climáticos representados pelas equações de Hargreaves e Blaney-Criddle apresentaram desempenho superior aos tanques evaporímetros, com produção comercial de 191,10 g planta-1 para o método de Hargreaves e de 173 g planta-1 para Blaney – Criddle. A maior eficiência do uso da água foi obtida utilizando também os métodos de Hargreaves e Blaney – Criddle, sendo estas 0,64 e 0,67 g mm-1, respectivamente.Palavra-chave: eficiência do uso da água, evapotranspiração, Lactuca sativa L., estresse hídrico. IRRIGATION MANAGEMENT METHODS CRISPHEAD LETTUCE GROWN IN A GREENHOUSE ABSTRACT:Lettuce is the main herbaceous vegetable in production and consumption of the Brazil. It is a culture dependent primarily of water, and its production in a protected environment, coupled with the use of irrigation practices, can contribute to increased yield and improved quality of vegetable. In this context and in the national water scenario the use of irrigation management techniques is essential. The current experiment was conducted in a greenhouse to evaluate the effects of irrigation established by different methods in the yield of lettuce grown in protected environment. The cultivar used was Taina, the crisphead type. The experimental design was a randomized block with 8 repetitions, 5 management methods of irrigation. Irrigation levels were established by equations Hargreaves, Blaney-Criddle, Tanque Classe A, Tanque Alternativo and Drenos Coletores. The variables evaluated were: total weight of the plant, yield (commercial weight or head), dry mass of head, number of inner leaves, head circumference, diameter and efficiency of water use. It was observed that climate methods represented by the equation Hargreaves and Blaney-Criddle outperformed the evaporimeters tanks when installed within protected environments. The greater efficiency of water use was obtained using the method Hargreaves and Blaney - Criddle, which is 0.64 and 0.67 g mm-1, respectively.Keywords: water use efficiency, evapotranspiration, Lactuca sativa L., rational management. DOI:


2020 ◽  
Vol 26 (1) ◽  
Author(s):  
Edson de Oliveira Santos ◽  
Adriana Miranda de Santana Arauco ◽  
Bruno de Oliveira Dias ◽  
Emanuel França Araújo ◽  
Cácio Luiz Boechat ◽  
...  

The use of renewable materials as a source of nutrients, besides being a solution of interest for waste disposal, may also be an effective way to reduce the high costs of inputs needed for the production of forestry seedlings. The purpose of this study was to evaluate the growth of Anadenanthera colubrina (Vell. Brenan) (angico branco) cultivated in organic substrates. A randomized block design was adopted and the treatments were distributed in a 3 × 5 factorial scheme, with three organic residues: decomposed burity (moriche palm) stem, carnaúba straw and organic compost mixed with the soil in four percentages: 20%, 40%, 60% and 80% of the composition of substrate and a control treatment with soil only, without incorporating the organic residue, with six repetitions. Ninety days after emergence, the seedlings were collected to determine the growth parameters: stem diameter (SD), height (H), of the following indexes: H/D, leaf number (LN), total chlorophyll (T), leaf area (LA), dry mass of the aerial part (DMAP), dry mass of roots (DMR), total dry mass (TDM) H/DMAP: DMAP/DMR, and Dickson Quality Index (DQI). The treatments that contained 60% and 80% of organic compost presented the best responses. It is concluded that the production of angico branco seedlings cultivated with substrate with the addition of 80:20 (organic compost: soil) presented the best results and was technically feasible according to the characteristics and indexes analyzed.


10.12737/3820 ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 103-107
Author(s):  
Гилаев ◽  
Ildar Gilaev ◽  
Шакиров ◽  
Rafil Shakirov

One of the important issues of increasing productivity and improving the quality of the grain is the correct application of fertilizers. The the quantity and quality of the final product depends on the right balance and the level of availability of nutrients in fertilizers. The results, presented in this article, demonstrate the relevance and significance of this research. We studied the issue of increasing technological qualities of grain and productivity of spring wheat. Using organomineral fertilizers by cash and balance method on the background of subsurface tillage can improve grain quality indicators. In the variant when treating organic fertilizers in amount of 7 tons per hectare of arable land per year with the addition of NPK fertilizer on the background subsurface loosening, the protein content was 14.8%, gluten - 32.7%, with the gluten deformation index 75 (I group), which corresponds to I class of grain quality. Not less important is the conservation the resources and reduction of fertilizers load on the soil in order to greening agriculture. So, the introduction of organomineral fertilizers will not only increase the crop by 1.5-2 times, compared to the control one without fertilizer, but also improve the payback of NPK fertilizer by grain to 50%, compared with mineral fertilizer system, by reducing fertilizer rates up to 40%.


2019 ◽  
Vol 13 (3) ◽  
pp. 458-465
Author(s):  
Daniela Höhn ◽  
Roberta Marins Nogueira Peil ◽  
Priscila Monalisa Marchi ◽  
Paulo Roberto Grolli ◽  
Lais Perin ◽  
...  

This study aimed to evaluate the growth and quality of lisianthus cultivated in different rice husk substrates. The evaluated substrates were: carbonized rice husk (CRH; 100%); raw rice husk (RRH; 100%); CRH (70%) + S10 Beifort® commercial organic compost (30%); and RRH (70%) + S10 Beifort® commercial organic compost (30%). Plant dry mass (DM) production and partitioning, plant leaf area and shoot/root DM ratio were analyzed. Quality parameters of the flower stems were also evaluated (length; diameter and number of flowers and buds). The RRH substrate at 100% reduced plant growth and prevented flower development. This modified dry mass partitioning among the plant organs. The substrates RRH + S10 and CRH provided quality flower stems. Thus, both substrates can be used to produce cut lisianthus flowers in recirculating nutrient systems. However, the RRH + S10 substrate stood out because it increased plant growth. This result is ascribed to the improvement of the physical and chemical properties of substrate RRH + S10 as a result of the presence of both the organic compost, which benefited the water holding capacity, and the RRH, which guaranteed high porosity to the substrate.


2020 ◽  
pp. 26-28
Author(s):  
Н.Т. Чеботарев ◽  
Н.Н. Шергина

Пахотные угодья Республики Коми в основном представлены дерново-подзолистыми почвами с низким естественным плодородием, которые без применения удобрений быстро подвергаются деградационным процессам, что резко снижает их продуктивность. Цель исследований: оценка эффективности долговременного применения органических и минеральных удобрений при выращивании картофеля в кормовом севообороте в условиях Республики Коми. Методической основой выполнения работ были комплексные исследования дерново-подзолистых почв, клубней картофеля на участках многолетнего полевого эксперимента, заложенного на землях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН в соответствии с «Методическими указаниями географической сети опытов с удобрениями». Длительный период исследований (более 40 лет) характеризовался различными климатическими условиями, которые отразились на количестве урожая и качестве клубней картофеля. Было проведено 7 ротаций (14 лет) с выращиванием картофеля. Вносили органические удобрения – торфонавозный компост (ТНК) в дозах 40 и 80 т/га (1 и 2 фон, соответственно) под картофель и минеральные удобрения – NPК в дозах 1/3; 1/2 и 1 для восполнения выноса растениями элементов питания. Установлено положительное влияние комплексного применения органических и минеральных удобрений на урожайность и качество картофеля, а также на плодородие дерново-подзолистой легкосуглинистой среднеокультуренной почвы в кормовом севообороте в почвенно-климатических условиях Республики Коми. В результате применения шестипольного севооборота и комплексного внесения удобрений с 1978 года к 2019 году в почвах снизилась обменная и гидролитическая кислотность; повысилось содержание гумуса на 0,5% (в контроле); на 0,2–0,5% (с тремя дозами минеральных удобрений); на 0,3–1,1% (с ТНК); на 0,2–1,6% (при совместном применении органических и минеральных удобрений). Наибольшие урожаи картофеля получены при совместном применении органических (80 т/га) и минеральных удобрений (1 NPК) и составили 37,1 т/га клубней (8,5 тыс/га кормовых единиц). При таком соотношении удобрений показано высокое качество клубней картофеля: содержание крахмала 15,5%, витамина С – 19,4 мг%, сырого протеина – 14,1%. Количество нитратного азота не превышало ПДК (ПДК 250 мг.с.м.). Экономические расчеты показали, что при внесении ТНК 40 т/га + 1 NPК в дерново-подзолистые почвы с.-х. использования в среднетаежной зоне Республики Коми при выращивании картофеля, условный чистый доход составит 68,4 тыс. р. с 1 га, себестоимость 1 т картофеля – 2,8 тыс. р., рентабельность 188,7%. The arable land of the Republic of Komi is mainly represented by dern-sub-ground soils with low natural fertility, which without the use of fertilizers are quickly subjected to degradation processes, which dramatically reduces their productivity. The aim of the research is to evaluate the efficiency of long-term use of organic and mineral fertilizers in the growing of potatoes in feed crop rotation in the conditions of the Komi Republic. The methodological basis for carrying out the works was comprehensive studies of dern-subhead soils, potato tubers on the sites of a multi-year field experiment laid on the lands of the Institute of Agrobiotechnology of the FRC Komi SC UB RAS in accordance with the «Methodological Instructions of the Geographical Network of Experiments with Fertilizers». A long period of research (more than 40 years) was characterized by different climatic conditions, which affected the number of crops and the quality of potato tubers. There were 7 rotations (14 years) with potato cultivation. Organic fertilizers – peat-avous compost (TNK) in doses of 40 and 80 t/ha (1 and 2 background, respectively) for potatoes and mineral fertilizers – NPK in doses of 1/3; 1/2 and 1 to replenish the carry-out of food elements by plants. The positive effect of the integrated use of organic and mineral fertilizers on the yield and quality of potatoes, as well as on the fertility of soddy-podzolic light loamy medium cultivated soil in fodder crop rotation in the soil and climatic conditions of the Komi Republic, has been established. As a result of the use of six-bed crop rotation and the integrated application of fertilizers, metabolic and hydrolytic acidity decreased in soils from 1978 to 2019; humus content increased by 0.5% (in control); 0.2–0.5% (with three doses of mineral fertilizers); 0.3–1.1% (with TNCs); 0.2–1.6% (with combined use of organic and mineral fertilizers). The largest potato yields were obtained from the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha tubers (8.5 thousand/ha feed units). The largest potato harvests were obtained with the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha of tubers (8.5 thousand/ha of feed units). With this ratio of fertilizers, the high quality of potato tubers was also determined: the starch content was 15.5%, vitamin C – 19.4 mg%, crude protein – 14.1%. The amount of nitrate nitrogen did not exceed the MPC (MPC 250 mg.s.m.). Economic calculations showed that if TNK is added 40 t/ha 1 NPK to the dern-sub-ground soils of agricultural use in the medium-sized zone of the Komi Republic when growing potatoes, the conditional net income will be 68.4 thousand rubles from 1 ha, the cost of 1 t of potatoes – 2.8 thousand rubles, profitability 188.7%.


2019 ◽  
Vol 12 (5) ◽  
pp. 47
Author(s):  
J. M. Basilio ◽  
A. S. Vieira ◽  
J. S. Fábio ◽  
D. B. Regina ◽  
K. P. Cristina

2020 ◽  
Vol 7 (04) ◽  
Author(s):  
A B Priyanshu ◽  
M K Singh ◽  
Mukesh Kumar ◽  
Vipin Kumar ◽  
Sunil Malik ◽  
...  

An experiment was conducted at Horticultural Research Centre, SVP University of Agriculture and Technology, Meerut (UP) during Rabi season of 2018-19 to assess the impact of different INM doses on yield and quality parameters of garlic. A total of ten treatments consisting of combinations of inorganic fertilizers, organic fertilizers and bio-fertilizers like T1- (Control), T2RDF (100:50:50 kg NPK ha-1), T3-RDF + 20 kg sulphur + FYM 20 ton ha-1, T4- RDF + 20 kg sulphur + VC 4 ton ha-1, T5- 75% RDF + 40 kg sulphur + 5 ton FYM ha-1+ PSB 5 kg ha-1, T6-75% RDF + 40 kg sulphur + 2 ton VC + Azotobacter 5 kg ha-1, T7- 75% RDF + 40 kg sulphur + FYM 3 ton + VC 1 ton+ PSB 5 kg + Azotobacter 5kg ha-1, T8- 50% RDF + 40 kg sulphur + FYM 5 ton + VC2 ton + PSB 5 kg ha-1, T9- 50% RDF + 40 kg sulphur + FYM5 ton + VC 2 ton+ Azotobacter 5 kg ha-1and T10- 50% RDF + 40 kg sulphur + FYM 5 ton + VC2 ton + PSB 5 kg + Azotobacter 5 kg ha-1 were used in Randomized Block Design and replicated thrice. Out of these an application of T7 (75% RDF + 40 kg sulphur + FYM3 ton + VC 1 ton ha-1 + PSB 5 kg + Azotobacter 5 kg ha-1) was found to be significantly superior in term of yield and attributing parameters of garlic.


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