AEJSA Volume 12, Number 3: July-September, 2018


Screening of Microorganisms from Homemade Biofertilizers to Promote Plant Growth

Witawat Jangiam, Nattawut Sangthong, Kornniti Soontrapiromsook

ABSTRACT: Excessive usage of chemical fertilizers is on the rise, polluting the groundwater because of the synthetic Nitrogen (N) content in it. Experiments were conducted to determine the potential use of a microorganism from a homemade biofertilizer as a source of N-biofertilizer. First, two homemade biofertilizer sources, vegetables and food waste, were selected and inoculated with microorganisms for the growth of the Chinese cabbage. During the experiment, the early growth of the plant was higher than control group and was statistically significant. Next, the best microorganisms, which could synthesize the plant-growth promoting elements, were selected from the homemade biofertilizer sources. Six strains of microorganisms were screened and tested for production of N through the amount of total ammonia by Kjeldahl method and the ability of microorganisms in N-cycle. The end results showed that microorganisms promoted the growth of Chinese cabbage more compared to that without biofertilizer (control).

[ FULL TEXT PDF 1-7 ] DOI: 10.22587/aejsa.2018.12.3.1


Factors that affect the Availability and Adequacy of Food and Its Influence against Food Resilience in the Border of Sambas District

Abdul Hamid A Yusra, Irham, Slamet Hartono and Lestari Rahayu Waluyati

ABSTRACT: This study aims to determine the factors that affect the availability and adequacy of food and its effects on the food security of farm households in the border area. The research location was chosen purposively (purposive sampling) from district level to village level in two subdistrict coastal and inland areas. This study used a survey method with 265 respondents taken randomly from a population of 1121 farmer group members. The data were analyzed using SEM-PLS method 3. The results showed that t-value value ≥ 1.96 and p-valus value ≤ 0.05 which means that all the variables have significant effect on food availability and on food sufficiency. Rsquare value 0.645 means that all variables (availability of food, food sufficiency, rice stock, IDDL, distance to market and distance to puskesmas) can explain 64,5% influence food security, the rest is influenced by other factors not included in this model. The availability of food is reflected by the production of rice from farmers' household farms with the outer loading coefficient of path (0.939) the largest among other variables, corn reserves (0.914), cassava reserves (0.846), sweet potato stock (0.823) and sourced from buy rice (-0.760). Food sufficiency is reflected by the largest price of meat (-0,847) among others, followed by the frequency of meetings of farming mothers in village organization activities (0.822), fish prices (0.624), number of family members (0.469) and farm income (0.464). Furthermore, the food resilience was reflected by the land carrying capacity index (0.922), the largest among others, rice reserves (0.756), farmers' market distance (0.422), food sufficiency (0.417), food availability (0.398) and distance farm household to health service center (-0.316). Viewed from the category of food security most (78%) of farm households in the border area in food-prone conditions to less food.

[ FULL TEXT PDF 8-17 ] DOI: 10.22587/aejsa.2018.12.3.2


Analysis of Oil Palm Plantation Sustainability Based on Indonesian Sustainable Palm Oil (ISPO) Standard at Plasma Plantation of PTPN XIII Ngabang, Landak Distric West Kalimantan Province

Ani Muani, Dwidjono Hadi Darwanto, Lestari Rahayu Waluyati, Any Suryantini

ABSTRACT: To produce an environmentally friendly palm oil product, it is necessary to apply the concept of sustainable development in the management of palm oil from upstream to downstream. In an effort to improve the governance of oil palm plantations in Indonesia, the government has implemented an assessment instrument based on the system sustainability in the development of oil palm plantations namely Indonesian Sustainable Palm Oil-Certification System (ISPO-CS). This research was conducted at PT. Perkebunan Nusantara XIII, Ngabang Plantation Plasma, Landak District West Kalimanan. This research aimed at determine sustainability palm oil in Plasma plantations, based on sustainability index and status, and to identify sensitive attributes that affect the palm oil sustainability index menurut standar ISPO. The method used is RAP-ISPO (Rapid Appraisal for Indonesian Sustainable Palm Oil) with a Multi Dimensional Scaling (MDS) modification of the RAP-FISH program, which results are expressed in index and sustainability status. Leverage analysis is performed to identify sensitive attributes toward sustainability index. The result of RAP-ISPO analysis ordinary technique showed that a sustainabiliy index in multidimensional toward five dimensions of palm oil sustainability was classified as “sufficient sustainable” that indicated with a sustainability index value of 69.77. The highest value of sustainability index is in technological dimension was 81.91 (very sustainable), on the contrary the lowest value occurs in institutional dimension (53.80), social dimension (70.45), ecology (72.18) and the economy (70.44) are classified as quite sustainable. Identified 15 attributes of sensitivity / levers that affect the palm continuity. The conclusion of the research result that the plasma plantation of Ngabang has implemented ISPO although it is not optimal yet, but through improvement of 15 attributes of the levers, the status of palm oil sustainability can still be improved in order to produce economically viable, socially appropriate, and environmentally appropriate based on ISPO standard.

[ FUILL TEXT PDF 18-27 ] DOI: 10.22587/aejsa.2018.12.3.3


Substitution of Complete Feed with Hydroponic Corn Fodder on Rumen Characteristics and Nitrogen Dynamics in Goats

Muh Shoalihin Saleh Husain, Syahriani Syahrir, Asmuddin Natsir

ABSTRACT: This research used a Randomized Block Design by using 12 goats. The purpose of this research is to examine the effect of complete feed substituted with hydroponic corn fodder on rumen characteristics and nitrogen dynamics. Feeding with three treatments P1 (complete feed), P2 (corn fodder) and P3 (50% P1 + 50% P2). Data were analyzed using analysis of variance (anova). Variables measuring rumen characteristics (pH, VFA and NH3) and nitrogen balance (N consumption, N digestibility, urine N and N retention). The results of this research indicate that effective feed is given to goat livestock in P3 treatment (50% P1 + 50% P2) characterized by the optimum pH value (6.67) and VFA (112.82 mM), compared to P1 (complete feed) and P2 (corn fodder) with pH value (7.22), (6.94) and VFA value (103.84 mM), (93.85 mM). And followed by high levels of digestibility N (77.10%) and low urine N (0.27 g / e / h). The conclusion is that the effective feed given to livestock is feed with P3 treatment.

[ FULL TEXT PDF 28-31 ] DOI: 10.22587/aejsa.2018.12.3.4


Plant Spacing and Topping and their Interaction affecting Safflower (Carthamus tinctorius L.)

Mohammad Garallah Albogami*, Fathy S. El-Nakhlawy and Samir G. Al-Solaimani

ABSTRACT: This study was carried out at Agriculture Research station, King Abdul-Aziz University at Hada AL-Sham, Jeddah, Saudi Arabia during 2016/2017 and 2017/2018 seasons. The effects of three different plant spacing i.e., ‘hill spacing’ (10, 20 and 30cm) and two plant topping treatments (without topping and with topping) were investigated on safflower yield and quality in a split plot design with four replicates. The results showed that the 30 cm-hill spacing produced highest volumes of seed yield/ha and high attributes for chlorophyll and oil contents, while the 10 cm-plant spacing produced the tallest plants. Seed yield/ha under the three plant spacing were 2.83, 2.58 and 2.48 t/ha under 30cm, 20 cm and 10 cm plant spacing during the first season and 2.59, 2.39 and 2.25 t/ha under the same spacing treatments during the second season. The plant topping significantly increased the seed yield, yield components and oil (%). The means of seed yield/ ha were 2.81 and 2.54 t/ha under topping in the first and second seasons, respectively and in the second season the yield were 2.54 and 2.27 t/ha, respectively. Without topping, the total chlorophyll values were significantly higher than with topping. The highest oil content in the seed was found under topping.

[ FULL TEXT PDF 32-37 ] DOI: 10.22587/aejsa.2018.12.3.5


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