scholarly journals Teknologi Internet Of Things (IoT) dalam Penyemprotan Insektisida Aglonema pada Greenhouse

2021 ◽  
pp. 36-43
Author(s):  
Retno Devita ◽  
Ruri Hartika Zain ◽  
Ipriadi ◽  
Ondra Eka Putra ◽  
Sri Rahmawati

Aglonema is a plant that is widely cultivated by ornamental plant lovers, because it has various species with varied and beautiful leaf patterns. Aglonema cultivation can be a business opportunity in agriculture because aglonema plants are in great demand but also because the prices offered vary from hundreds of thousands to millions of rupiah. Aglonema plant care is quite easy and simple. However, the wrong aglonema plant care such as irregular watering, excessive fertilizer application, and the wrong plant placement can make plants grow less optimally or even die. Greenhouse is a building that was formed to avoid and treat plants against various kinds of weather. Weather is the state of the atmosphere in a place at a certain time related to air temperature, sunlight, wind, rain and other air conditions. Thus, the types of plants that are not in accordance with the local climate, such as ornamental plants, vegetables and fruit, which have high economic value but are difficult to cultivate in outdoor areas, can be cultivated through climate control in the greenhouse. Various benefits such as controlling air temperature, adjusting humidity levels, to the interval between watering times can be adjusted easily. Internet of things (IoT) is a concept or program where an object has the ability to transmit or transmit data over a network without using the help of computer and human devices. With this IoT, spraying insecticides at the Greehouse for aglonema plants can be done automatically

2019 ◽  
Vol 16 (24) ◽  
pp. 4851-4874 ◽  
Author(s):  
Jeroen Claessen ◽  
Annalisa Molini ◽  
Brecht Martens ◽  
Matteo Detto ◽  
Matthias Demuzere ◽  
...  

Abstract. Improving the skill of Earth system models (ESMs) in representing climate–vegetation interactions is crucial to enhance our predictions of future climate and ecosystem functioning. Therefore, ESMs need to correctly simulate the impact of climate on vegetation, but likewise feedbacks of vegetation on climate must be adequately represented. However, model predictions at large spatial scales remain subjected to large uncertainties, mostly due to the lack of observational patterns to benchmark them. Here, the bidirectional nature of climate–vegetation interactions is explored across multiple temporal scales by adopting a spectral Granger causality framework that allows identification of potentially co-dependent variables. Results based on global and multi-decadal records of remotely sensed leaf area index (LAI) and observed atmospheric data show that the climate control on vegetation variability increases with longer temporal scales, being higher at inter-annual than multi-month scales. Globally, precipitation is the most dominant driver of vegetation at monthly scales, particularly in (semi-)arid regions. The seasonal LAI variability in energy-driven latitudes is mainly controlled by radiation, while air temperature controls vegetation growth and decay in high northern latitudes at inter-annual scales. These observational results are used as a benchmark to evaluate four ESM simulations from the Coupled Model Intercomparison Project Phase 5 (CMIP5). Findings indicate a tendency of ESMs to over-represent the climate control on LAI dynamics and a particular overestimation of the dominance of precipitation in arid and semi-arid regions at inter-annual scales. Analogously, CMIP5 models overestimate the control of air temperature on seasonal vegetation variability, especially in forested regions. Overall, climate impacts on LAI are found to be stronger than the feedbacks of LAI on climate in both observations and models; in other words, local climate variability leaves a larger imprint on temporal LAI dynamics than vice versa. Note however that while vegetation reacts directly to its local climate conditions, the spatially collocated character of the analysis does not allow for the identification of remote feedbacks, which might result in an underestimation of the biophysical effects of vegetation on climate. Nonetheless, the widespread effect of LAI variability on radiation, as observed over the northern latitudes due to albedo changes, is overestimated by the CMIP5 models. Overall, our experiments emphasise the potential of benchmarking the representation of particular interactions in online ESMs using causal statistics in combination with observational data, as opposed to the more conventional evaluation of the magnitude and dynamics of individual variables.


Author(s):  
Muhyettin ŞENTÜRK ◽  
Rıza BİNZET

Humanity has used plants for aesthetic purposes for centuries. Plants nowadays use cities for more livable habitats and similar purposes to satisfy the longing for nature of people who move away from nature due to increasing urbanization. So that plants attract attention as a commercial field plays a crucial role in economic development for many countries today. Our country, which is one of the richest geographies in terms of biodiversity globally, shows a total of 11466 plant taxa, 3800 of which are endemic. While the total number of plant species in all of Europe is around 12.000, in our country there are approximately 10.000 species. When the species and subspecies identified in recent years are added, around 12,000 taxa find natural habitats in our country. Mersin province is one of the important endemism centers of our country, with approximately 400 endemic species (endemism rate is approximately 23%). It is seen that the areas where geophytes spread intensively in the world are regions where the Mediterranean climate prevails, which is humid and warm in winters and dry and hot in summers. The Mediterranean Basin, where our country is located, is the second richest geophyte region in the world. Mersin province is one of the provinces located in the Mediterranean Basin. Within the scope of this study, it is to determine the usability of endemic plant species that are naturally distributed in Mersin province as ornamental plants and to ensure that they gain economic value in the ornamental plant market. For this purpose, in our study, some monocotyledon taxa that have an ornamental plant potential from endemic plant taxa in Mersin have been determined, and photographs of these taxa are presented. The recommended taxa are geophyte taxa, and the fact that they only spread in our country (some only in Mersin) is of great importance in bringing these species into the landscape as ornamental plants. A total of 20 endemic taxa belonging to 5 different monocotyledon families identified in Mersin were determined. The endangered extinction of some of these taxa proposed as ornamental plants is also of great importance in ensuring their generation by bringing them into the landscape with various production techniques.


Author(s):  
Okti Herliana ◽  
Eny Rokhminarsi ◽  
Ahmad Iqbal ◽  
Kartini Kartini

Mantan pekerja migran membutuhkan pendampingan wirausaha agar tetap produktif secara ekonomi. Salah satu jenis usaha yang dapat dilakukan adalah bidang pertanian, yaitu usaha penjualan tanaman hias khususnya anggrek. Anggrek merupakan tanaman hias yang mempunyai nilai ekonomi tinggi karena mempunyai bentuk bunga yang bagus, beragam warna dan kesegaran bunga dapat bertahan lama. Kegiatan ini merupakan lanjutan dari tahun sebelumnya mengenai rintisan usaha budidaya Anggrek. Pembibitan merupakan faktor penting pendukung kegiatan budidaya Anggrek. Jika pengusaha anggrek tidak dapat memproduksi bibit sendiri maka akan banyak modal terserap untuk pengadaan bibit.  Tujuan dari kegiatan ini adalah untuk melakukan pendampingan dan memberikan pelatihan agar mitra dapat meningkatkan pengetahuan, pemahaman dan ketrampilan mengenai pembibitan anggrek baik secara vegetative, generative maupun kultur jaringan. Metode yang digunakan dalam kegiatan ini adalah PRA (Partisipatory Rural Appraisal) yaitu peran aktif seluruh pihak yang terlibat dalam kegiatan. Tahapan kegiatan meliputi: 1. Penyuluhan, 2. Pelatihan, 3.Pembuatan Demplot Percobaan, 4. Pendampingan dan monitoring. Hasil kegiatan ini adalah adanya peningkatan pengetahuan dan ketrampilan pembuatan bibit  anggrek pada anggota paguyuban seruni sebesar 80%. Mampu melakukan persilangan anggrek, pembibitan secara vegetative (pemisahan anakan dan keiki) perbanyakan secara generative dengan biji dan pembuatan bibit secara kultur jaringan, mitra dapat melakukan aklimatisasi terhadap bibit anggrek botolan, mampu melakukan transplanting bibit anggrek seedling dan remaja pada berbagai media tanam, melakukan perawatan anggrek dengan aplikasi pupuk daun dan hormone pertumbuhan. Kata Kunci: Pemberdayaan, Buruh migran, Anggrek, Kultur jaringan ABSTRACT Former migrant worker need mentoring entrepreneurs to remain economically productive. One type of business that can be done is agriculture, such as Nursary (selling of ornamental plants) especially orchids. Orchid is an ornamental plant that has high economic value because it has a good flower shape, various colors and freshness of flowers can last a long time. This activity is a continuation of the previous year regarding pioneering orchid business. Nurseries are an important factor supporting orchid cultivation bussinnese. If the orchid famer cannot produce his own seeds, a lot of capital will be absorbed for the procurement of seeds. The purpose of this activity is to provide assistance and provide training so that partners can increase their knowledge, understanding and skills regarding orchid nurseries, both vegetative, generative and tissue culture. The method used in this activity is the PRA (Participatory Rural Appraisal), which is the active role of all parties involved in the activity. Stages of activities include: 1. Counseling, 2. Training, 3. Making an Experiment Demonstration Plot, 4. Assistance and monitoring. The result of this activity is increasing in the knowledge and skills of produce orchid seeds of Paguyuban Seruni members by 80%. Able to perform orchid crossing, vegetative nursery (separation of saplings and keiki) generative propagation by seed and seedling by tissue culture, partners can acclimatize bottled orchid seeds, able to transplanting seedling orchid seeds and juveniles in various planting media, perform maintenance orchids by application of foliar fertilizer and  growth hormone. Keywords: Empowering, former migran worker, orchid nurseries, tissue culture.


2021 ◽  
Vol 145 (9-10) ◽  
pp. 467-477
Author(s):  
Deniz Güney ◽  
Ibrahim Turna ◽  
Fahrettin Atar ◽  
Ali Bayraktar

Chamaecyparis lawsoniana ‘Ellwoodii’, Cryptomeria japonica ‘Elegans’ and x Cupressocyparis leylandii have great importance in terms of usage areas as ornamental plant. The overcoming the problem, that may be encountered in generative propagation of these taxa, using vegetative propagation method are very important for producers dealing with park and garden works. It was investigated that the effects of different greenhouse medium, rooting medium and phytohormones on propagation by hardwood cutting of studied taxa. In this study, three greenhouse medium (Greenhouse-1, 2 and 3 medium), two rooting medium (perlite and peat) and four phytohormones (IBA 1000, IBA 5000, NAA 1000 and NAA 5000 ppm) were selected. The first root and callus formation dates, rooting percentage, callus percentage, root length and the number of roots were determined. The results showed that the highest rooting percentages for C. lawsoniana ‘Ellwoodii’ were obtained as 100% in peat rooting medium (IBA 1000 ppm) at Greenhouse-2 medium and Greenhouse-3 medium and perlite rooting medium (control) at Greenhouse-3 medium. On the other hand, the highest rooting percentages for C. japonica ‘Elegans’ were obtained as 100% in IBA 1000, IBA 5000 and NAA 1000 ppm treatments at Greenhouse-1 medium, while this value for x C. leylandii occurred in NAA 5000 ppm treatment (73.33%) at Greenhouse-2 medium, in perlite rooting medium for both. The conditions required for the best rooting in cutting propagation vary according to the species studied, and generally, auxin applications, rooting medium temperature 5 °C higher than air temperature and use of perlite rooting medium can be recommended.


Atmosphere ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 292 ◽  
Author(s):  
Ana Oliveira ◽  
António Lopes ◽  
Ezequiel Correia ◽  
Samuel Niza ◽  
Amílcar Soares

Lisbon is a European Mediterranean city, greatly exposed to heatwaves (HW), according to recent trends and climate change prospects. Considering the Atlantic influence, air temperature observations from Lisbon’s mesoscale network are used to investigate the interactions between background weather and the urban thermal signal (UTS) in summer. Days are classified according to the prevailing regional wind direction, and hourly UTS is compared between HW and non-HW conditions. Northern-wind days predominate, revealing greater maximum air temperatures (up to 40 °C) and greater thermal amplitudes (approximately 10 °C), and account for 37 out of 49 HW days; southern-wind days have milder temperatures, and no HWs occur. Results show that the wind direction groups are significantly different. While southern-wind days have minor UTS variations, northern-wind days have a consistent UTS daily cycle: a diurnal urban cooling island (UCI) (often lower than –1.0 °C), a late afternoon peak urban heat island (UHI) (occasionally surpassing 4.0 °C), and a stable nocturnal UHI (1.5 °C median intensity). UHI/UCI intensities are not significantly different between HW and non-HW conditions, although the synoptic influence is noted. Results indicate that, in Lisbon, the UHI intensity does not increase during HW events, although it is significantly affected by wind. As such, local climate change adaptation strategies must be based on scenarios that account for the synergies between potential changes in regional air temperature and wind.


2020 ◽  
Vol 22 (2) ◽  
pp. 64
Author(s):  
Krisna Cahya Nurani ◽  
Susilo Budiyanto ◽  
Endang Dwi Purbajanti

<p>Green beans are legume plants that are in great demand because of their high nutrition content and include plants that require boron to support growth from the vegetative to generative phase. The study aims to assess the growth and production of green beans due to influence of the dose and time of boron application. The research was carried out using completely randomized design with factorial pattern 3×3 with 3 replications. The first factor was the treatment of boron doses of 1, 1.5, and 2 kg/ha was given once at 7 Day After Planting (DAP), fertilizer application twice at 7 and 28 DAP, and once given at 28 DAP. The results showed that dose of boron at a dose of 1 kg/ha was able to produce the number of affective root nodules and the best pod weight. The treatment of boron once at 7 DAP can increase plant height, flowering age, pod weight, and seed weight per pod. The interaction between dose and time of boron application affects the number of affective root nodules and seed weight per pod.</p>


2021 ◽  
Vol 27 (2) ◽  
pp. 232-237
Author(s):  
Ni Made Armini Wiendi ◽  
Nessa Maulida ◽  
Krisantini Krisantini

Abstract Eleutherine bulbosa is a known ornamental plant of the Iris family, which originated from Central Borneo, Indonesia. The bulbs of E. bulbosa have long been used as a medicinal source by the local people of Borneo. Despite its known medicinal and other values, studies on the morphology and efficiency in bulb production of this species are limited. The aims of our study are to examine the vegetative and reproductive morphology of E. bulbosa, and to determine the effect of various dosages of NPK fertilizer on flowering and bulb production. The plants were grown in pots using potting mix consists of equal volume of burnt rice hulls, cocopeat, and organic manures (1:1:1). Our study showed that E. bulbosa has a cymose rhipidium inflorescence with 25-50 mm long peduncles, have 3-4 umbel on the secondary axis, each consists of 10-12 florets that opens in turn every day. Florets are 20-30 mm long, 20 mm in diameter, 10-15 mm pedicels, and short-lived. The perianth is white, about 25 mm wide with yellow anthers and stigma. Fruits were not formed during the duration of the study. NPK fertilizer application at the lowest dose of 1 g per pot had promoted earlier shoot emergence and vegetative growth, including plant height, leaf number, leaf size, number of tillers, and bulb production compared to control (no fertilizer). Application of fertilizer at 1 and 2 g per plant significantly promoted earlier flowering, whereas application at 3 g per plant delayed and reduced the proportion of flowering plants. The results of this study can aid in taxonomic identification and efficient cultivation of this plant for uses as potted flowering ornamentals or bulb production for different purposes. Higher cultivation and reduced wild harvesting can result in the conservation of this species.


Vestnik MGSU ◽  
2021 ◽  
pp. 486-492
Author(s):  
Oleg D. Samarin

Introduction. It is noted that the improvement of the technology for calculating the thermal regime of premises in the conditions of automation of climate systems is still relevant. The aim of the work is to find a universal dependence of the air temperature in the building premises on time in conditions of a jump in heat access or heat loss for the integral law of regulating the compensatory heat flow from microclimate systems. In the form of a scientific hypothesis, we consider the statement about the power nature of such a dependence with the presence of a maximum and an asymptotic tendency to zero. Materials and methods. The study involves the use of basic equations that relate the most significant components of heat flows in rooms serviced by microclimate systems equipped with integrated controllers under conditions of abrupt changes in thermal disturbances. The method of dimension analysis is used to identify dimensionless complexes that are essential for obtaining engineering dependencies, as well as software calculation of sums of infinite series with a given accuracy, numerical solution of nonlinear equations, and the method of power series economization. Results. An analytical expression is found for changes in room temperature under integrated control of climate equipment under conditions of a jump in heat availability, which has the form of an infinite series in degrees of a dimensionless parameter that characterizes the properties of the room and the automation system. A simplified expression for the deviation of air temperature is obtained and a formula for the required control time is derived, as well as its estimation is given on the example of one residential building in the climatic conditions of Moscow. Conclusions. It is shown that the dependence of the air temperature in a room serviced by microclimate systems with integrated controllers on time is represented in a universal dimensionless form, suitable for any objects regardless of their specific characteristics. The previously discovered relationships for the moment of maximum deviation and the value of the dynamic control error depending on the air exchange of the room, the transmission coefficient of the controller and the room’s own heat stability are confirmed and refined.


GANEC SWARA ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 280
Author(s):  
NI PUTU SUDARSANI

   This study aims to determine the effect of working capital and business variables on the income of ornamental plant business in Petiga Village, Marga District, Tabanan Regency. This study takes a sample of 64 respondents. The analytical tool used is multiple linear regressions.   Based on the results of the calculation of SPSS 22.00, the calculated F value is 31,088 with a significance of F of 0,000. By using a 0.05 level of significance obtained F table value of 3.15, then F count (31.088)> F table (3.15), or the significance of F of 0.000 shows smaller than 0.05 so it can be concluded that the two independent variables i.e. working capital and length of business jointly influence the amount of income of ornamental plant business in Petiga Village, Marga Subdistrict, Tabanan Regency is accepted. Partially the working capital variable has a significant effect. While the duration of business influences the income of the business of ornamental plants in Petiga Village, Marga District, Tabanan Regency, but it is not significant


2021 ◽  
Author(s):  
Fransje van Oorschot ◽  
Ruud van der Ent ◽  
Andrea Alessandri ◽  
Markus Hrachowitz

&lt;p&gt;The root zone storage capacity (S&lt;sub&gt;r&lt;/sub&gt; ) is the maximum volume of water in the subsurface that can potentially be accessed by vegetation for transpiration. It influences the seasonality of transpiration as well as fast and slow runoff processes. Many studies have shown that S&lt;sub&gt;r&lt;/sub&gt; is heterogeneous as controlled by local climate conditions, which affect vegetation strategies in sizing their root system able to support plant growth and to prevent water shortages. Root zone parameterization in most land surface models does not account for this climate control on root development, being based on look-up tables that prescribe worldwide the same root zone parameters for each vegetation class. These look-up tables are obtained from measurements of rooting structure that are scarce and hardly representative of the ecosystem scale. The objective of this research was to quantify and evaluate the effects of a climate-controlled representation of S&lt;sub&gt;r&lt;/sub&gt; on the&amp;#160; water fluxes modeled by the HTESSEL land surface model. Climate controlled S&lt;sub&gt;r&lt;/sub&gt; was here estimated with the &quot;memory method&quot; (hereinafter MM) in which S&lt;sub&gt;r&lt;/sub&gt; is derived from the vegetation's memory of past root zone water storage deficits. S&lt;sub&gt;r,MM&lt;/sub&gt; was estimated for 15 river catchments over Australia across three contrasting climate regions: tropical, temperate and Mediterranean. Suitable representations of S&lt;sub&gt;r,MM&lt;/sub&gt; were then implemented in HTESSEL (hereinafter MD) by accordingly modifying the soil depths to obtain a model S&lt;sub&gt;r,MD &lt;/sub&gt;that matches S&lt;sub&gt;r,MM&lt;/sub&gt; in the 15 catchments. In the control version of HTESSEL (hereinafter CTR), S&lt;sub&gt;r,CTR&lt;/sub&gt; was larger than S&lt;sub&gt;r,MM&lt;/sub&gt; in 14 out of 15 catchments. Furthermore, the variability among the individual catchments of S&lt;sub&gt;r,MM&lt;/sub&gt; (117&amp;#8212;722 mm) was considerably larger than of S&lt;sub&gt;r,CTR&lt;/sub&gt; (491&amp;#8212;725 mm). The HTESSEL MD version resulted in a significant and consistent improvement version of the modeled monthly seasonal climatology (1975--2010) and inter-annual anomalies of river discharge compared with observations. However, the effects on biases in long-term annual mean fluxes were small and mixed. The modeled monthly seasonal climatology of the catchment discharge improved in MD compared to CTR: the correlation with observations increased significantly from 0.84 to 0.90 in tropical catchments, from 0.74 to 0.86 in temperate catchments and from 0.86 to 0.96 in Mediterranean catchments. Correspondingly, the correlations of the inter-annual discharge anomalies improved significantly in MD from 0.74 to 0.78 in tropical catchments, from 0.80 to 0.85 in temperate catchments and from 0.71 to 0.79 in Mediterranean catchments. Based on these results, we believe that a global application of climate controlled root zone parameters has the potential to improve the timing of modeled water fluxes by land surface models, but a significant reduction of biases is not expected.&amp;#160;&lt;/p&gt;


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