scholarly journals Effect of Differently Matured Composts from Willow on Growth and Development of Lettuce

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 175
Author(s):  
Jakub Bekier ◽  
Elżbieta Jamroz ◽  
Józef Sowiński ◽  
Katarzyna Adamczewska-Sowińska ◽  
Andrea Kałuża-Haładyn

Soil amendments from peats, brown coals and composts produced from segregated biodegradable waste or biomass from fallow land can increase soil fertility and improve soil productivity. The aim of the study was to determine the possibility of using willow (Salix viminalis L.) biomass composts as a substrate component in horticulture. The objects of the research were composts produced from willow carried out in a pile under aerobic conditions. The addition of hay and mineral nitrogen (Nmin) was used to improve process efficiency. In order to verify the type and determine fertilizing value, basic chemical parameters were analyzed (pH, total contents of C, N and P) and a pot experiment was established to analyze the germination and growth of lettuce (Lactuca sativa L.). Changes in pH, an increase in total nitrogen content (TN), phosphorus (TP) and a decrease in TOC was observed in the investigated samples. Results of the experiment showed that the highest yield was obtained from the pots with the mixture of willow, hay and Nmin. Matured composts significantly stimulated the germination and growth of the test plants. It can be concluded that the addition of hay and Nmin significantly improved composting process and increased the fertilizing value of the investigated composts.

2021 ◽  
Vol 3 (1) ◽  
pp. 7
Author(s):  
Jakub Bekier ◽  
Elżbieta Jamroz ◽  
Andrea Kałuża-Haładyn ◽  
Józef Sowiński ◽  
Katarzyna Adamczewska-Sowińska

Soil amendments from peats, brown coals and composts produced from segregated biodegradable waste or biomass from fallow land can increase soil fertility and improve soil productivity. The aim of the study was to determine the possibility of using willow (Salix viminalis L.) biomass composts as a substrate component in horticulture. The objects of the research were composts produced from willow chips (A), willow mixed with hay (B) and willow mixed with hay and mineral nitrogen (Nmin) fertilizer (C). Composting was carried out in a pile under aerobic conditions. In order to determine the properties and fertilizing value of the composts, basic chemical parameters were analyzed (pH; total contents of C, N and P), and a pot experiment was established to analyze germination and growth of lettuce (Lactuca sativa L.). Changes in pH, total nitrogen content (TN), phosphorus (TP) and a decrease in TOC were observed in the investigated samples. The results of the experiment showed that the highest yield was obtained from the pots with the mixture of willow, hay and Nmin. Matured composts significantly stimulated the germination and growth of the test plants. It can be concluded that the addition of hay and Nmin significantly increased the fertilizing value of the investigated composts.


2015 ◽  
Vol 35 ◽  
pp. 36-44
Author(s):  
M. Nagarajan ◽  
K. Sankar Ganesh

Chromium is a serious heavy metal and it is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study the accumulation of Cr and its effect on the Germination and growth of some paddy varieties. Thus, the varieties such as ADT-43, ADT-45, IR-50, TKM-9, CO-33, ASD-16 and CO-43 are grown in petriplates treated with different concentrations of Chromium (0, 5, 10, 25, 50, 100, and 200 mg/L). After one week exposure the seedlings were removed and morphophysiological parameters like germination percentage, seedling length and dry weight of paddy varieties and accumulation of Cr were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiological parameters in the treatments rather than control and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the paddy seedlings under treatment.


BIOLOVA ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 16-25
Author(s):  
Moh Muarif ◽  
Agus Sujarwanta ◽  
Handoko Santoso ◽  
Muhfahroyin Muhfahroyin

Abstract: This research is an experimental research, which aims to determine the effect of variation dosage in of organic pineapple liquid waste fertilizer,  on the growth and productivity of red lettuce (Lactuca Sativa L) and its potential as learning resources of biology learning. This research uses a Completely Randomized Design with 1 control and 3 treatment combinations and 5 repetitions. This research was conducted for 30 days. The parameters which is used in this research include plant height and wet weight of lettuce (Lactuca sativa L), with supporting data in the form of number of leaves and stem diameter. The main data is tabulated and analysed using the SPSS 25.0 application which includes Multivariate Analysis of Variance. The results of this research can be concluded that the application of organic fertillizer from pineaplle liquid waste has a significant influence on the growth and product of lettuce (Lactuca sativa L). The results of the research be used as a practical guide on plant growth and development materials.


Agriculture ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 42
Author(s):  
Gintaras Šiaudinis ◽  
Danutė Karčauskienė ◽  
Jūratė Aleinikovienė ◽  
Regina Repšienė ◽  
Regina Skuodienė

One of the potential options for sewage sludge as an alternative organic material is the fertilization of energy crops. To evaluate the effect of granulated sewage sludge and mineral fertilization N60P60K60 on common osier’s (Salix viminalis L.) biomass productivity and soil parameters, field trials were held in Western Lithuania’s naturally acidic Retisol (WB 2014; pHKCl 4.35–4.58). After four years of cultivation and dependent on fertilization type, common osier dry matter (DM) yield varied from 49.60 to 77.92 t ha−1. Higher DM yield was related to an increased number of stems/plants. The application of a 90 t ha−1 sewage sludge rate had a significant and positive impact on common osier productivity, as well as on the increment of soil organic carbon, total N, and mobile P2O5 content in the upper 0–30 cm soil layer. The use of both sewage sludge rates (45 and 90 t ha−1) had a similar impact on soil bulk density, water-stable aggregates, and the active soil microbial biomass. Annual mineral fertilization had little effect on the parameters studied. When growing common osier in Retisol, 45 t ha−1 of a single sewage sludge rate was enough to maintain both plant and soil productivity.


Author(s):  
Gislayne de Araujo Bitencourt ◽  
Cibele Caren Moraes Gonçalves ◽  
Artur Guerra Rosa ◽  
Deizeluci De Fátima Pereira Zanella ◽  
Rosemary Matias

Os compostos alelopáticos podem afetar o crescimento e inibir a germinação das espécies. O objetivo deste trabalho foi analisar a fitoquímica e o efeito alelopático do extrato das folhas de Schinus terebinthifolius Raddi na germinação e crescimento de plântulas de Lactuca sativa L. e, posteriormente, aplicar a metodologia em eucalipto vermelho (Eucalyptus camaldulensis). Os compostos químicos foram determinados em extrato alcoólico das folhas, comparados e contrastados observando a alteração de cor. As sementes de alface e eucalipto vermelho foram distribuídas em gerbox contendo papel filtro como substrato, umedecido com 7 mL do extrato aquoso das folhas frescas, nas seguintes concen trações: (0; 12,5; 25; 50; 75 e 100%). Para todas as análises e experimentos foram utilizados três repetições. Os gerbox foram distribuídos em um delineamento inteiramente casualizado, mantidos em câmara de germinação com temperatura de 20 °C para alface e 28°C para eucalipto e fotoperíodo de 12 horas. Durante o segundo e quinto dia foram realizadas contagens das sementes germinadas de alface. O período de avaliação do experimento foi de cinco dias para alface e 12 dias para eucalipto. Ao final, foram determinadas as porcentagens de germinação, comprimento da raiz e de parte aérea das plântulas. Os resultados demonstraram interferência negativa na germinação e crescimento de alface e eucalipto em função do aumento da concentração do extrato. Entre os aleloquímicos predominantes estão os compostos fenólicos e derivados, com destaque aos flavonoides, terpenos e heterosídeos cardioativos o que pode estar relacionados ao efeito alelopático negativo da aroeira. O uso da aroeira associado ao eucalipto deve ser feito com um manejo adequado.   Palavras-chave: Alface. Aleloquímicos. Anacardiaceae. Eucalipto. Efeito Alelopático.   Abstract Allelopathic compounds can affect growth and inhibit species germination. The objective of this work was to analyze the phytochemistry and the allelopathic effect of  extract of  Schinus terebinthifolius Raddi leaves on the  Lactuca sativa L. seedlings germination and growth and later apply the methodology in red eucalyptus (Eucalyptus camaldulensis). The chemical compounds were determined in the leaves alcoholic extract, compared and contrasted observing the color change. The lettuce and red eucalyptus seeds were distributed in a gearbox containing filter paper as a substrate, moistened with 7 mL of the fresh leaves aqueous extract in the following concentrations: (0; 12.5; 25; 50; 75 and 100%). For all analyzes and experiments, three repetitions were used. The gearbox was distributed in a completely randomized design, maintained in a germination chamber with a temperature of 20 °C for lettuce and 28 °C for eucalyptus and a photoperiod of 12 hours. Germinated lettuce seeds were counted during the second and fifth days. The experiment evaluation period was five days for lettuce and 12 days for eucalyptus. At the end, the germination percentages, root length and the seedlings aerial part were determined. The results showed negative interference in the germination and growth of lettuce and eucalyptus due to the extract increased concentration. The most frequent allelochemicals were flavonoids, terpenes, tannins, anthocyanins and heterosides, which are probably related to the negative allelopathic effect. The use of  aroeira associated with eucalyptus must be done with proper management.   Keywords: Lettuce, Allelochemicals Anacardiaceae. Eucalyptus. Allelopathic Effect.


2017 ◽  
Vol 4 (2) ◽  
pp. 178-182
Author(s):  
Prabhakaran J ◽  
Arumugam K

Leaf extracts of Casuarina. equisetifolia L. was evaluated for its allelopathic influenced on rice cultivars viz. IR- 20 and TKM – 9. Leaf extracts was tested at 2.5, 5, 10, 15 and 20% concentration. Seed germination, shoot length, biomass, chl - a , chl- b, carotenoids, starch, protein and amino acid contents were significantly reduced by leaf extracts and highest inhibition was observed in 20% concentration. But at lower concentration (2.5%), the seedling growth was slightly enhanced than control. The higher degree of germination and growth inhibition was observed in cultivar TKM-9 than IR-20.


2011 ◽  
Vol 1 (1) ◽  
pp. 7-11
Author(s):  
Nur Hafizah ◽  
Fikriah Fikriah

       Lettuce plants in the process of growth and development require additional nutrients by repair Techniques for cultivation and repair of organic or inorganic fertilizers. Organic fertilizers are also called natural fertilizers because all or most of them come from natural fertilizers. This study aims to (i) find out the effect of giving dung manure to the growth and yield of lettuce on swampy soil, (ii) get the best dose from the administration of duck manure to the growth and yield of lettuce on swampy swamp soil. This research was conducted in Hambuku Tengah Village, Sungai Pandan District from April to June 2010. Using a Completely Randomized Design (CRD). The factors studied were 9 doses of duck manure fertilizer dosage with 9 treatments, there are b0 = 0 t.ha-1; b1 = 2,5 t.ha-1;  b2 = 5,0 t.ha-1;  b3 =  7,5  t.ha-1;  b4 = 10 t.ha-1 ; b5 = 12,5 t.ha-1; b6 = 15,0 t.ha-1; b7 = 17,5 t.ha-1; b8 = 20,0 t.ha-1 with 3 replications, thus there were 27 experimental units. The observed variables were plant height and number of leaves aged 14, 21, 28 and 35 days after planting (DAP) and leaf wet weight at harvest. From the results of the study there was a response of tall mustard plants aged 28 HST and wet weight of mustard plants but there was no response to the height of mustard plants aged 14, 21 and 35 HST on the administration of duck manure, with the best dose was treatment b4 (10 t.ha -1)


2010 ◽  
Vol 53 (6) ◽  
pp. 1359-1362 ◽  
Author(s):  
Tatiani Elisa Chapla ◽  
João Batista Campos

The allelopathic activity of the leaf aqueous extract of guava (Psidium guajava L.) on seed germination and root growth in lettuce (Lactuca sativa L.) was studied in an experiment consisting of four replicates with 10 seeds each and extract concentrations of 5, 10, and 20%. Guava allelopathic activity occurred during the germination and growth of lettuce roots at 20% extract concentration, as shown by ANOVA. This result suggested the allelopathic potential of the species. Therefore, the success of P. guajava in invading environments could be partially due to allelopathy. Further studies using other plant parts and field experiments should be conducted.


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