scholarly journals THE EFFECT OF BLOCK COMPOST SAGO WASTE ORGANIC PLANTS ( POLYBAG ) ON COMPOSITION VARIATIONS

Author(s):  
Mohamad Yasin ◽  
Erma Prihastanti ◽  
Endah Dwi Hastuti

Abstract The use of polybags is not environmentally friendly because the polybags will be thrown away and become trash so the environment will be polluted. One way to reduce environmental pollution is to use compost blocks made from sago waste. Sago waste has nutrients that can be used as plant growth media. One of the developments of growing media from compost is to form it in the form of compact compost blocks. Block compost functions in plant nurseries, stimulating root and leaf growth. The purpose of this study was to determine the effect of the type of block compost sago waste as a growing medium on variations in composition. At the time of planting, seedlings can be directly planted with holes in compost blocks. Seedlings planted in block compost have better growth in the field than seedlings planted in polybags, so that block compost can be considered as an environmentally friendly alternative to polybags. Keywords: Sago Waste; Growing Media; Block Compost.

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 261 ◽  
Author(s):  
Fernando Fornes ◽  
Luisa Liu-Xu ◽  
Antonio Lidón ◽  
María Sánchez-García ◽  
María Luz Cayuela ◽  
...  

Compost represents a sustainable alternative for peat (P) replacement in soilless plant cultivation, but its use can be limited by several inadequate physical and physicochemical properties. Biochar can alleviate some of the limitations of compost for its use as growth media by improving the physical properties, decreasing salinity and making the phytotoxic compounds unavailable for plants. We studied the physical and physicochemical properties of holm oak biochar (B), poultry manure compost (PMC), poultry manure composted with biochar (PMBC), a commercial peat (P) and multiple combinations of these materials as growth media, and their effect on the rooting and growth of rosemary. PMBC and PMC showed similar physical and physicochemical properties as growing media, and they both were phytotoxic when used in a rate above 50% (by volume) in the growing medium. However, when used at proportion of 25%, PMBC was less phytotoxic than PMC and enhanced the percentage of rosemary cutting rooting. The incorporation of B in the growing medium instead of P (either at 50% or 75% in volume) increased the stability of the growing media and the percentage of rooted cuttings, but it did not affect plant growth significantly. Our results demonstrate the potential of substituting peat by a combination of poultry manure compost and biochar for the formulation of growth media.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
E. Hanggari Sittadewi., dkk

Nutrient Block is a growing medium product in the form of a square (25 x 25 cm) or cylindrical (diameter = 20 cm, height = 25 cm) made of peat which has been composted, plus adhesive gypsum or tapioca waste. Nutrient Block is designed to support the post mining land rehabilitation program that is now threatening the environmental degradation in mining areas. Nutrient Block products has been proved good for growth because of the media in addition to having physical properties that are capable of storing large amounts of water, contain enough nutrients in the form available to plants,so it can support plant growth. Results of the Nutrient Block application test to Jabon (Anthocephalus cadaba) and Sengon (Paraserianthes falcataria) plants showed that good performance, both plant height and diameter of trees and leaf growth in plants Jabon appear healthy and getting wider.keywords: nutrient block, post-mining land rehabilitation. Paraserianthes falcataria, Anthocephalus cadaba


ZOOTEC ◽  
2015 ◽  
Vol 35 (2) ◽  
pp. 302
Author(s):  
Marsel Efraim Bajang ◽  
A. Rumambi ◽  
W. B. Kaunang ◽  
D. Rustandi

THE EFFECT OF GROWING MEDIUM AND SOAKING TIME ON GERMINATION OF SORGHUM VAR. NUMBU. The present study was conducted to elaboratethe effect of the growing medium andsoaking times on germination of sorghum varieties numbu. This research has been done to learn and obtain data on the effect of the plant growth media and the soaking times of the sorghum plant sprouts. The experiment consisted of a 3x4x3 factorial design with 3 levels of growing medium (100% original soil; 50% original soil + 50% burned soil; and 100% burned out soil) and 4 levels of soaking times (0,2,4, and 6 hours). After a significant F test (where necesarry) was employed to inspect differences among group means. Statistical difference was accepted at P < 0,05. Variables measured were: germination rates, germination, and leaf counts. Research results showed that growing medium gave a significant difference (P<0,01) on germination phase and germination rates. The interaction of growing medium andsoaking times gave a significant difference on leaf counts.It can be concluded that the growing medium gave a positive response on germination phase andgermination rates; while leaf counts of Sorghum var. Numbu interacted well with growing medium of 100% original soil and all level of soaking times. Keywords: growing medium, soaking times, sorghum var. Numbu, germination.


HortScience ◽  
1999 ◽  
Vol 34 (4) ◽  
pp. 660-663 ◽  
Author(s):  
Marc van Iersel

Ebb- and-flow irrigation is an economically attractive subirrigation method that reduces labor costs and eliminates runoff from greenhouses. The effects of fertilizer concentration on growth of subirrigated pansy (Viola ×wittrockiana Gam.) and the leachate electrical conductivity (EC) and pH were quantified, using two growing media. Leachate EC increased as the EC of the fertilizer solution increased from 0.6 to 3.6 dS·m–1 (70 to 530 mg·L–1 N). The leachate EC was fairly constant over time when the EC of the fertilizer solution was 0.6 dS·m–1, while it increased throughout the experiment at higher fertilizer concentrations. MetroMix 300 leachate consistently had a higher EC than did MetroMix 500. Leachate pH of both growing media was similar throughout the growing season. The pH decreased over time and was lower with higher fertilizer concentrations. Optimal plant growth occurred with a fertilizer EC of 1.2 or 1.8 dS·m–1, and a leachate EC between 1.5 and 4 dS·m–1. Increasing the concentration of the fertilizer solution resulted in increased shoot tissue levels of P and Mn and decreased tissue levels of K, Mg, and Na. The results of this study indicate that pansy is not very sensitive to the EC of the growing medium and can be grown successfully in a closed subirrigation system.


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Barbara De Lucia ◽  
Giuseppe Cristiano ◽  
Lorenzo Vecchietti ◽  
Elvira Rea ◽  
Giovanni Russo

There is a stringent need to reduce the environmental impact of peat in the plant nursery production chain. In this experiment, the use of different rates of sewage sludge compost in the preparation of growing media for potted Bougainvillea was evaluated to assess its efficiency for the replacement of peat and to quantify the environmental impact of such alternative substrates by the life cycle assessment (LCA) method. Five substrates containing increasing proportion of composted sewage sludge to peat (0%, 25%, 40%, 55%, and 70% v/v) were used, and their physicochemical properties were measured. Bougainvillea plant growth, biomass production, and macro- and micronutrient absorption were also determined. The main results were that compost addition improved the plant nutrient and increased the substrate pH, electrical conductivity (EC), and dry bulk density values. Globally, the results showed that compost could be used at up to 55% by volume with no negative effects on plant growth. The LCA showed that use of compost reduced the environmental loads of the growth media, except the Global Warming Potential value (GWP100). Environmental implications of the use of compost in the plant nursery chain are discussed.


2021 ◽  
Vol 1 (1) ◽  
pp. 620-627
Author(s):  
Darban Haryanto ◽  
Ellen Rosyelina Sasmita

Indigofera sp. is an environmentally friendly source of indigo dye for batik production and a material for livestock industry because this plant potentially serves as a forage protein source. This plant has the potential to be further developed and its cultivation requires quality seeds. Seedling growth is an important factor in achieving maximum productivity. Increasing its growth can be done by providing sufficient nutrients and using appropriate growing media. The results showed that there was an interaction between the concentration of Gandasil D fertilizer and growing media composition, namely at Gandasil D fertilizer concentration of 2 g/1 liter of water and a growing medium consisting of coco peat and compost with the parameters of plant height and stem diameter observed at 10 WAP. The Gandasil D fertilizer concentration of 2 g/1 liter of water affected the growth of Indigofera seedlings more effectively than other concentrations. A growing medium consisting of coco peat and compost with a ratio of 1:1 was more effective in boosting the growth of Indigofera seedlings than growing media consisting of other compositions.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fatemeh Ahmadi ◽  
Abbas Samadi ◽  
Ebrahim Sepehr ◽  
Amir Rahimi ◽  
Sergey Shabala

AbstractMedicinal plants represent a valuable commodity due to beneficial effects of their natural products on human health, prompting a need for finding a way to optimize/increase their production. In this study, a novel growing media with various perlite particle size and its mixture with peat moss was tested for hydroponic-based production of Echinacea purpurea medicinal plant under greenhouse conditions. The plant growth parameters such as plant height, total fresh leave weight, fresh root weight, total biomass, total chlorophyll, leaf area, and essential oil compositions were assessed. Perlite particle size in the growing media was varied from very coarse (more than 2 mm) to very fine (less than 0.5 mm), and the ratio between perlite and peat moss varied from 50:50 v/v to 30:70 v/v. In addition, two nitrate (NO3−) to ammonium (NH4+) ratios (90:10 and 70:30) were tested for each growing media. The medium containing very fine-grade perlite and 50:50 v/v perlite to peat moss ratio was found to be most optimal and beneficial for E. purpurea performance, resulting in maximal plant height, fresh and dry weight, leaf surface area, and chlorophyll content. It was also found that an increase in NO3−/NH4+ ratio caused a significant increase in plant growth parameters and increase the plant essential oil content. The major terpene hydrocarbons found in extract of E. purpurea with the best growth parameters were germacrene D (51%), myrcene (15%), α-pinene (12%), β-caryophyllene (11%), and 1-Pentadecene (4.4%), respectively. The percentages of these terpene hydrocarbons were increased by increasing of NO3−/NH4+ ratio. It can be concluded that decreasing the perlite particle size and increasing the NO3−/NH4+ ratio increased the plant growth parameters and essential oil compositions in E. purpurea.


Soil Systems ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 37
Author(s):  
Christopher Oze ◽  
Joshua Beisel ◽  
Edward Dabsys ◽  
Jacqueline Dall ◽  
Gretchen North ◽  
...  

Perchlorate (ClO4−) is globally enriched in Martian regolith at levels commonly toxic to plants. Consequently, perchlorate in Martian regolith presents an obstacle to developing agriculture on Mars. Here, we assess the effect of perchlorate at different concentrations on plant growth and germination, as well as metal release in a simulated Gusev Crater regolith and generic potting soil. The presence of perchlorate was uniformly detrimental to plant growth regardless of growing medium. Plants in potting soil were able to germinate in 1 wt.% perchlorate; however, these plants showed restricted growth and decreased leaf area and biomass. Some plants were able to germinate in regolith simulant without perchlorate; however, they showed reduced growth. In Martian regolith simulant, the presence of perchlorate prevented germination across all plant treatments. Soil column flow-through experiments of perchlorate-containing Martian regolith simulant and potting soil were unable to completely remove perchlorate despite its high solubility. Additionally, perchlorate present in the simulant increased metal/phosphorous release, which may also affect plant growth and biochemistry. Our results support that perchlorate may modify metal availability to such an extent that, even with the successful removal of perchlorate, Martian regolith may continue to be toxic to plant life. Overall, our study demonstrates that the presence of perchlorate in Martian regolith provides a significant challenge in its use as an agricultural substrate and that further steps, such as restricted metal availability and nutrient enrichment, are necessary to make it a viable growing substrate.


2013 ◽  
Vol 726-731 ◽  
pp. 1449-1452
Author(s):  
Zheng Xiang ◽  
Shi Lei Wu ◽  
Xin Zhao

The food-related industries important influence on the environment and the factors which caused food-related industriesenvironmental pollution was investigated by using the food-related industry data. The results showed that the variables measuring the quantities and structures of food consumption have an important influence on carbon dioxides discharge. In addition, the scale of economics and environmental control variables have the biggest influence. We can lead peoples food consumption structure to the environmentally friendly structure and strengthen the environmental control, then control the environmental pollution of the food industry effectively.


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