PENERAPAN SISTEM INFORMASI MANAJEMEN TERHADAP BUDIDAYA IKAN GURAME DAN IKAN HIAS DESA SAMBIROBYONG

This study aims to determine the understanding of how to cultivate carp and ornamental fish with tarpaulin pond media, to determine marketing strategies for gouramy and ornamental fish, to determine the sales of gouramy and ornamental fish, and to know how to apply a management information system to carp cultivation. and ornamental fish. Cultivation of gouramy and ornamental fish is a business that is considered to have a fairly large level of profit. By using the right cultivation system, starting from capital, making ponds and stocking capacity, determining seeds, maintenance, determining selling prices, and harvesting times, the results will be maximized. The focus of this research is, How is the application of management information systems to SMEs in the cultivation of gouramy and ornamental fish in Sambirobyong village. This research use desciptive qualitative approach. This data collection technique is done by interviewing the informants in the field. And the research results obtained are the process of making ponds with tarpaulin media is an effective and efficient way compared to concrete or cast pools, the provision of water and seeds is adjusted to the width of the pool, marketing and sales strategies are also good, namely by using a website management information system.

Metabolite Profiling and Classification of Highbush Blueberry Leaves under Different Shade Treatments

Blueberry belongs to the genus Vaccinium L. in the Ericaceae and is an economically important shrub that produces small berries that are rich in nutrients. There were differences in the appearance of blueberry leaves under different shade treatments. To explore the differences in metabolites in blueberry leaves under different shading treatments, nontargeted liquid chromatography–mass spectrometry (LC–MS) metabonomic analysis was performed. Different shade intensities resulted in significant differences in the contents of metabolites. A total of 6879 known metabolites were detected, including 750 significantly differentially expressed metabolites, including mainly lipids and lipid-like molecules and phenylpropanoid and polyketide superclass members. Based on a Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, the flavone and flavonol biosynthesis pathways were the most significantly enriched. The results of this study provide a reference and scientific basis for the establishment of a high-quality and high-yield shaded blueberry cultivation system.

The Importance of Spiritual Ecology in the Qingyuan Forest Mushroom Co-Cultivation System

The ecological value encapsulated in the term “spiritual ecology” is drawing more and more attention from ethnology, folklore, ecology, and other related disciplines. The custom of respecting and pacifying forest spirits has distinct regional and ethnic characteristics, and many scholars have discovered samples from different studies around the world. Qingyuan County, located in the mountainous region of southwest Zhejiang, is a very typical case of the practice of respecting and pacifying forest spirits. The mushroom-cultivation technology invented by the chthonic people there more than 900 years ago made this the global birthplace of artificial mushroom cultivation. The Qingyuan Forest–Mushroom Co-cultivation System (QFMCS) has been listed as an important agricultural heritage system by the Ministry of Agriculture and Rural Affairs of China, Beijing, China and a candidate project by the Food and Agriculture Organization of the United Nations, Rome, Italy for Globally Important Agricultural Heritage Systems (GIAHS). Additionally, the QFMCS is currently an important part of the Baishanzu National Park under construction. The authors made an in-depth field study in the mountainous areas of Qingyuan and used theoretical methods of ecology, anthropology, and folklore to reveal the function spiritual ecology plays in ecological conservation, forest protection, identity, and the maintenance of community interests. In the “traditional-modern” transformation of Qingyuan County, the practice of respecting and pacifying the Spirits is still being propagated, resulting in expansion and social cohesion.

Biological Control of Fusarium culmorum, Fusarium graminearum and Fusarium poae by Antagonistic Yeasts

The genus Fusarium is considered to be one of the most pathogenic, phytotoxic and toxin-producing group of microorganisms in the world. Plants infected by these fungi are characterized by a reduced consumer and commercial value, mainly due to the contamination of crops with mycotoxins. Therefore, effective methods of reducing fungi of the genus Fusarium must be implemented already in the field before harvesting, especially with alternative methods to pesticides such as biocontrol. In this study we identified yeasts that inhibit the growth of the pathogenic fungi Fusarium culmorum, F. graminearum and F. poae. Tested yeasts came from different culture collections, or were obtained from organic and conventional cereals. The greater number of yeast isolates from organic cereals showed antagonistic activity against fungi of the genus Fusarium compared to isolates from the conventional cultivation system. Cryptococcus carnescens (E22) isolated from organic wheat was the only isolate that limited the mycelial growth of all three tested fungi and was the best antagonist against F. poae. Selected yeasts showed various mechanisms of action against fungi, including competition for nutrients and space, production of volatile metabolites, reduction of spore germination, production of siderophores or production of extracellular lytic enzymes: chitinase and β-1,3-glucanase. Of all the investigated mechanisms of yeast antagonism against Fusarium, competition for nutrients and the ability to inhibit spore germination prevailed.

Analysis of the economic viability of organic production system of ornamental pineapple plants for cut stems

The growth of Brazilian floriculture is remarkable, both in terms of the number of producers and the cultivated area. To reduce costs and add value, the organic production of ornamental pineapple plants is an option for some consumer markets. This study was carried at the Fundação José Carvalho, municipality of Entre Rios (Bahia State), Brazil, to evaluate the economic viability of the organic production of ornamental pineapple plants, as well as to analyze the economic factors from implantation of the crop to the final production phase. Primary and secondary data collection (technical coefficients and prices) was carried out, which allowed updating the value of these coefficients. After determining the technical coefficients, input prices and product prices were surveyed and were inserted in spreadsheets of production cost and profitability. Data processing and profitability analysis were carried out under deterministic and risk conditions. The organic cultivation system for ornamental pineapples proved to be economically viable, providing greater profitability and production of stems, which is the product of interest.

Influence of basic treatment of irrigated land on Fertility indicators and harvest formation of sweet pepper

The purpose of the research was to establish the most rational soil cultivation system for irrigated conditions, contributing to the preservation of ecological balance and increasing the profitability of pepper production. Experimental studies were carried out on meadow-chestnut soils of the plain zone of the Republic of Dagestan in 2017-2019. in a two-factor experiment to determine the most effective combination of soil cultivation and irrigation regime. The paper presents the results of the influence of plowing and disc cultivation on the water-physical properties of the soil and its biological activity, as well as on the yield of sweet pepper under drip irrigation. The results of three-year research have established that, under irrigation conditions, the most effective method of basic soil cultivation is moldboard soil cultivation to a depth of 0.23 ... 0.25 m, which contributed to the improvement of soil density, its permeability, structural state and increased biological activity in the treated layer. On plowing, the yield of sweet pepper fruits was obtained at the level of 6.23 t/ha. The use of disc processing by 0.10 ... 0.12 m leads to a deterioration of agrophysical indicators of fertility, phytosanitary state of irrigated fields by 1.7 ... 2.2 times, a decrease in yield by 5.1 ... 9.6% and profitability of pepper fruit production by 25.3 ... 31.0%.

The Demographic Effects of Colonialism: Forced Labor and Mortality in Java, 1834–1879

We investigate the demographic effects of forced labor under an extractive colonial regime: the Cultivation System in nineteenth-century Java. Our panel analyses show that labor demands are strongly positively associated with mortality rates, likely resulting from malnourishment and unhygienic conditions on plantations and the spread of infectious diseases. An instrumental variable approach, using international market prices for coffee and sugar for predicting labor demands, addresses potential endogeneity concerns. Our estimates suggest that without the abolition of the Cultivation System average overall mortality in Java would have been between 10 and 30 percent higher by the late 1870s.

Photoautotrophic and Mixotrophic Cultivation of Polyhydroxyalkanoate-Accumulating Microalgae Consortia Selected under Nitrogen and Phosphate Limitation

Microalgae consortia were photoautotrophically cultivated in sequencing batch photobioreactors (SBPRs) with an alteration of the normal growth and starvation (nutrient limitation) phases to select consortia capable of polyhydroxyalkanoate (PHA) accumulation. At the steady state of SBPR operation, the obtained microalgae consortia, selected under nitrogen and phosphate limitation, accumulated up to 11.38% and 10.24% of PHA in their biomass, which was identified as poly(3-hydroxybutyrate) (P3HB). Photoautotrophic and mixotrophic batch cultivation of the selected microalgae consortia was conducted to investigate the potential of biomass and PHA production. Sugar source supplementation enhanced the biomass and PHA production, with the highest PHA contents of 10.94 and 6.2%, and cumulative PHA productions of 100 and 130 mg/L, with this being achieved with sugarcane juice under nitrogen and phosphate limitation, respectively. The analysis of other macromolecules during batch cultivation indicated a high content of carbohydrates and lipids under nitrogen limitation, while higher protein contents were detected under phosphate limitation. These results recommended the selected microalgae consortia as potential tools for PHA and bioresource production. The mixed-culture non-sterile cultivation system developed in this study provides valuable information for large-scale microalgal PHA production process development following the biorefinery concept.