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Journal : Journal of Tropical Soils

The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard Syamsiyah, Jauhari; Sumarno, Sumarno; Suryono, Suryono; Muhamat Rajab, Nur Echsan; Aryaningrum, Ida
JOURNAL OF TROPICAL SOILS Vol 22, No 3: September 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i3.139-148

Abstract

Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization. A field experiment was conducted using a Randomized Completely Block Design (RCBD) with two factors and three replications in order to study the effects of Mixed Source of Fertilizer (MSF) application on the nutrient contents in Vertisol and its relationship to the growth and yield of mustard. The first factor was the three MSF formulas (F1, F2, F3) and second factor was the doses of MSF (0; 2.5; 5.0; 7.5; 10 Mg ha-1) applied to the soil. At the end of the experiment, the soil pH, CEC, organic-C, total-N, available-P and exchangeable-K contents were measured. The results show that there are no significant differences on the soil chemical characteristics, such as pH, organic-C content, available-P, exchangeable-K, -Ca and -Mg measured after application of different MSF formulas to the soil. Meanwhile, the increase of MSF doses applied to the soil significantly increases organic-C content, total-N, available-P and exchangeable-K in the soil. The significant increase of available-P (by 29.13%) and total-N (by 24.1%) occured after application of MSF at 5.0 Mg ha-1 and the increase of exchangeable-K (by 50%) is achieved after application of 7.5 Mg ha-1, in comparison to that without MSF application. The height and fresh weight of mustard increase in accordance with the increase of MSF doses applied. The application of 10.0 Mg ha-1 MSF results in the highest height and fresh weight of the mustard up to 63.9% and 620%, respectively. The height and fresh weight of mustard are positively correlated to the total-N, available-P and exchangeable-K in the soil. The MSF is an alternative fertilizer that can be used to improve Vertisol fertility and plant growth. 
The Effect of Trichoderma on N, P, K Soil and Corn Plants Syamsiyah, Jauhari; Hartati, Sri; Herdiansyah, Ganjar; Maro'ah, Siti; Nurrahma, Rizkia Aufa
JOURNAL OF TROPICAL SOILS Vol 29, No 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.159-166

Abstract

The use of Trichoderma is one effort to manage healthy and environmentally friendly plants. This fertilizer is part of organic fertilizer; which farmers do not widely practice yet. This fertilizer has an impact that can increase nutrients and soil fertility. This study examined the impact of using Trichoderma in combination with NPK fertilizer on soil nutrient, nutrient uptake, and growth of corn plants. A Completely Randomized Block Design consisting nine treatments with three replicates was applied. The treatments were Control (A), standard NPK (Urea 350 kg ha-1, SP-36 200kg ha-1 and KCl 75kg ha-1) (B), ¼ NPK + 5 kg ha-1 Trichoderma (C), ½ NPK + 5 kg ha-1 Trichoderma (D), ¾ NPK + 5 kg ha-1 Trichoderma (E), 1 NPK + 5 kg ha-1 Trichoderma (F), ¾ NPK +1.25 kg ha-1 Trichoderma (G), ¾ NPK +2.5 kg ha-1 Trichoderma (H), ¾ NPK + 3.75 kg ha-1 Trichoderma (I). The results showed that NPK fertilizer accompanied by Trichoderma increased soil total N by 84.21%, available P by 36.25%, and available K by 142.22%. The same treatment also increased corn plants’ N, P, and K nutrients by 52.71%, 106%, and 61.53%. The growth of maize plants from applyingTrichoderma up to 5 kg ha-1 has not reduced the use of NPK fertilizer yet. However, applying Trichoderma could improve soil fertility.
Chemical Properties of Inceptisol and Rice Yields Applied with Mixed Source Fertilizer (MSF) Syamsiyah, Jauhari; Sumarno, Sumarno; Suryono, Suryono; Sari, Winda; Anwar, Muhammad
JOURNAL OF TROPICAL SOILS Vol. 23 No. 1: January 2018
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2018.v23i1.1-9

Abstract

One effort that can be done to improve soil fertility and crop yields is fertilization. Fertilization using a mixed source fertilizer (MSF) is an option to overcome the impact of inorganic fertilizer use and organic fertilizer drawbacks. This study aims to evaluate the effects of MSF application on the chemical properties of Inceptisol and rice yields. A field experiment was conducted using a completely randomized block design (RCBD) with two factors and three replications. The first factor was the three formulas of MSF (F1, F2, F3) and the second factor was MSF doses (0, 2.5, 5, 7.5, 10 Mg ha-1). The results show that there is no significant difference on the total soil N, available soil P, plant height and total number of tillers of rice plants applied with the three MSF formulas. The increased MSF doses applied significantly improve the soil chemical properties of Inceptisol and rice yields. The application of 10 Mg ha-1 MSF increases total- N (57.89%), available-P (29.13%), exchangeable-Ca and -Mg (117% and 250%, respectively), plant height (40%) and total number of tillers (43.2%) in comparison to those without MSF application. There are interaction effects between formulas and doses of MSF on the amount of exchangeable-K, organic-C content, and CEC of the soil and rice yields. The application of 10 Mg ha-1 MSF F3 results in better effects on the amount of exchangeable-K, organic-C content and CEC of the soil, and number of productive tillers and rice yields than the application of other MSF formulas. The MSF can be used as an alternatif fertilizer that can improve Inceptisol productivity.  
The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard Syamsiyah, Jauhari; Sumarno, Sumarno; Suryono, Suryono; Muhamat Rajab, Nur Echsan; Aryaningrum, Ida
JOURNAL OF TROPICAL SOILS Vol. 22 No. 3: September 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i3.139-148

Abstract

Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization. A field experiment was conducted using a Randomized Completely Block Design (RCBD) with two factors and three replications in order to study the effects of Mixed Source of Fertilizer (MSF) application on the nutrient contents in Vertisol and its relationship to the growth and yield of mustard. The first factor was the three MSF formulas (F1, F2, F3) and second factor was the doses of MSF (0; 2.5; 5.0; 7.5; 10 Mg ha-1) applied to the soil. At the end of the experiment, the soil pH, CEC, organic-C, total-N, available-P and exchangeable-K contents were measured. The results show that there are no significant differences on the soil chemical characteristics, such as pH, organic-C content, available-P, exchangeable-K, -Ca and -Mg measured after application of different MSF formulas to the soil. Meanwhile, the increase of MSF doses applied to the soil significantly increases organic-C content, total-N, available-P and exchangeable-K in the soil. The significant increase of available-P (by 29.13%) and total-N (by 24.1%) occured after application of MSF at 5.0 Mg ha-1 and the increase of exchangeable-K (by 50%) is achieved after application of 7.5 Mg ha-1, in comparison to that without MSF application. The height and fresh weight of mustard increase in accordance with the increase of MSF doses applied. The application of 10.0 Mg ha-1 MSF results in the highest height and fresh weight of the mustard up to 63.9% and 620%, respectively. The height and fresh weight of mustard are positively correlated to the total-N, available-P and exchangeable-K in the soil. The MSF is an alternative fertilizer that can be used to improve Vertisol fertility and plant growth. 
Effects of Gypsum and Zeolite on Nutrient Uptake and Shallot (Allium ascalonium L.) Growth on Irrigated Saline Entisol Rahayu, Rahayu; Syamsiyah, Jauhari; Dewi, Livia
JOURNAL OF TROPICAL SOILS Vol. 24 No. 2: May 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i2.73-81

Abstract

Entisols is soil that newly formed and has diverse fertility, and potential for shallot cultivation.. The center of shallot production is mostly carried out in coastal areas which have a limiting factor high soil salinity. High salinity will cause nutrient uptake and plant growth disrupted. Soil amendments such as zeolite and gypsum potential option to overcome tha impact of high salinity. This study was completely randomized design (CRD) two factors, shallot cultivar (Brebes cultivar = V1, Purbalingga cultivar = V2, Pemalang cultivar = V3), and soil amendment (gypsum = G, zeolite = Z, without amendments= K. Each pot countaned of 15 kg of entisols and irrigated by 1 liter saline water of 2 mS / cm every day. Results shallot that amendment application can significantly improve pH, EC, SAR. Application of gypsum (25 Mg ha-1) and zeolite (15 Mg ha-1) showed the higher effect on purbalingga cultivars (V2). Interaction amendments and cultivars did not significantly affect on plant height and diameter of the bulbs. Gypsum 25 Mg ha-1 (G) significantly increased wet weight and fresh weight of bulb in purbalingga cultivars.
Rice Quality and Yield at Various Application Times of Organic Rice Management System Syamsiyah, Jauhari; Ariyanto, Dwi Priyo; Herawati, Aktavia; Komariah, Komariah; Hartati, Sri; Nurbaiti, Fitri
JOURNAL OF TROPICAL SOILS Vol. 28 No. 1: January 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i1.9-15

Abstract

The higher national rice demand encourages various efforts to increase rice production. This increase in rice production occurs in line with increasing public awareness of healthy foods, especially organic rice. Rice field management with an organic system is expected to provide a higher yield and quality of rice. This study aims to determine the effect of the long-time application of an organic rice management system on rice yield and quality. Descriptive exploratory research is supported by laboratory analysis of samples of organic rice plants with three periods (10 years, 7 years, and 4 years), semi-organic and conventional. The parameters observed were dry harvested grain, dry milled grain, the weight of 1000 grains, unfilled grain, protein content, amylum, amylopectin, and reducing sugar. The most prolonged organic rice field management with the application of 10 years gives better results with a protein content of 6.14%, amylum 71.71%, and amylopectin 49.35%. While the application of organic farming for 7 years gives the highest rice yield, the difference is not confirmed with the application of organic 10 years, with the weight of dry grain harvest 10.44 Mg ha-1, dry milled grain 8.15 10.44 Mg ha-1, the weight of 1000 grains 24 g, and unfilled grain 3.8%.
The Effect of Trichoderma on N, P, K Soil and Corn Plants Syamsiyah, Jauhari; Hartati, Sri; Herdiansyah, Ganjar; Maro'ah, Siti; Nurrahma, Rizkia Aufa
JOURNAL OF TROPICAL SOILS Vol. 29 No. 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.159-166

Abstract

The use of Trichoderma is one effort to manage healthy and environmentally friendly plants. This fertilizer is part of organic fertilizer; which farmers do not widely practice yet. This fertilizer has an impact that can increase nutrients and soil fertility. This study examined the impact of using Trichoderma in combination with NPK fertilizer on soil nutrient, nutrient uptake, and growth of corn plants. A Completely Randomized Block Design consisting nine treatments with three replicates was applied. The treatments were Control (A), standard NPK (Urea 350 kg ha-1, SP-36 200kg ha-1 and KCl 75kg ha-1) (B), ¼ NPK + 5 kg ha-1 Trichoderma (C), ½ NPK + 5 kg ha-1 Trichoderma (D), ¾ NPK + 5 kg ha-1 Trichoderma (E), 1 NPK + 5 kg ha-1 Trichoderma (F), ¾ NPK +1.25 kg ha-1 Trichoderma (G), ¾ NPK +2.5 kg ha-1 Trichoderma (H), ¾ NPK + 3.75 kg ha-1 Trichoderma (I). The results showed that NPK fertilizer accompanied by Trichoderma increased soil total N by 84.21%, available P by 36.25%, and available K by 142.22%. The same treatment also increased corn plants’ N, P, and K nutrients by 52.71%, 106%, and 61.53%. The growth of maize plants from applyingTrichoderma up to 5 kg ha-1 has not reduced the use of NPK fertilizer yet. However, applying Trichoderma could improve soil fertility.