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Dewanti, Felicitas Deru
UPN Veteran Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Nusantara Science and Technology Proceedings

 1 
Mexican Sunflower (Tithonia diversifolia) as a Source of Organic Matter in Potato Cultivation F. Deru Dewanti; Yonny Koetjoro; Didik Utomo Pribadi
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0613

Abstract

One of the low production of potatoes is the lack of land carrying capacity. The availability of nutrients greatly affects the growth and yield of plants. During this time excessive and continuous use of inorganic fertilizers can lead to a decrease in soil fertility rates. Paitan plants have only been used as a fence plant and still not widely used as a producer of organic nutrients, especially in potatoes. Utilization of mexican sunflower as a supplier of organic materials can be done easily and efficiently because mexican sunflower plants are very easy to get and grown widely. This plants are widespread in the region of East Java. The purpose of this research is to obtain the potential of paitan as a supplier of organic materials to increase growth and yield of granola potato optimum. This study used experimental method with Randomized Group Design (RGD). Treatment using mexican sunflower dose (D) consists of: D0 = Control, without fertilization, D1 = 120 kg N/ha equivalent to fresh mexican sunflower 5.882 ton/ha, D2 = 175 kg N/ha equivalent to fresh mexican sunflower 8.578 ton/ha, D3 = 230 kg N/ha equivalent to fresh mexican sunflower 11,273 ton/ha, D4 = 175 kg N/ha Urea equivalent to 380 kg/ha, P2O 149.76 kg/ha, K2O 100 kg/ha. The results of the study obtained mexican sunflower with a dose of fertilization 11,273 ton/ha equivalent to 230 kg N/ha (D3) can produce growth and yield of the highest potato crops. Mexican sunflower as an organic fertilizer can improve soil fertility and be able to provide nutrients to plants.
Content of Abscisic Acid and Potassium as Drought Stress Indicator on Soybean Yonny Koentjoro; F. Deru Dewanti; Sukendah
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The extreme evapotranspiration on plants and soil surface is a factor that affects plant growth and production. Specifically, water loss in soybean plants affects the ABA content (abscisic acid) and potassium content in the plant. This study aims to evaluate the content of abscisic acid and potassium as indicators of drought stress in soybean plants. This study was designed following the 1-factor experimental rules and using a completely randomized design. The treatment factor is giving of water consisting of A0 = Giving water 100% normal needs, A1 = Giving water 75% normal needs, A2 = giving water 50% normal needs, A3 = giving water 25% normal needs. The results showed that ABA biosynthesis increased in plants experiencing drought stress, the decreasing giving of water, the ABA levels in the leaves increased. The potassium content in plants shows a positive correlation with water supply, the lower the water supply, cause the lower of potassium content. The relationship between abscisic acid content and potassium content in plants indicated that during the occurrence of water deficiency it would trigger an increase in ABA biosynthesis and this condition caused the potassium content in the plant to decrease (R2 = 0.99). Besides, the treatment of giving water had a significant effect on the variables of relative water content in leaves, number of leaves and weight of seeds per plant. The increase in ABA content and decrease in potassium content in plants is an indicator of plants experiencing drought stress.
Silicon Application to Several Soybean (Glycine max, Merrill) Varieties Under Drought Stress Condition Yonny Koentjoro; F. Deru Dewanti; Sukendah; Djoko Purnomo; Edi Purwanto
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2008

Abstract

Drought stress becomes a serious threat to the cultivation of soybean because it could affect the whole processes of soybean plants that may ultimately result in a significant reduction in yield. To obtain high production in drought stress conditions, one needs such efforts as including the use of utilizing high yielding varieties resistant to drought and/or designing environmental alteration engineering by using compounds or substances which can set osmolitic regulation. This study aims to determine the effect of the use of silicon (silica) on the four morpho-agronomic characters of soybean varieties tested. The study is designed by using a Factorial Randomized Block Design basis and implemented at the Faculty of Agriculture experiment station UPN “Veteran” Jawa Timur. The results showed that there were are significant interactions between treatment varieties and silica concentration for of the variables; the number of branches, number of pods per plant, and seed weight per plant. Character of each variety show varied responses to the application of silicon. Silicon concentration of 20 cc / l increased the weight of seed weight per plant and seed yield potential per hectare.
The Effect of Paitan (Tithonia diversifolia) dose on Growth and Yield of Potato (Solanum tuberosum L.) Granola Purple Flowered Variety F. Deru Dewanti; Yonny Koentjoro; Sugiarto; Puji Lestari Tarigan
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2014

Abstract

Potato farming in Jawa Timur currently tends to be oriented towards high production. Increasing the yield of potato quality is by controlling fertilizers and the population. The use of paitan as an organic fertilizer to replace an organic fertilizer is easy and efficient. This study aims to determine the effect of organic fertilizer application on the yield of Granola potatoes (Solanum tuberosum L.). Treatment using a dose of paitan (D) consisted of: D0 = Control (without fertilization), D1 = 120 kg N ha-1 equivalent to 5882 t ha-1 fresh paitan, D2 = 175 kg N ha-1 equivalent to 8,578 t ha-1 fresh paitan, D3 = 230 kg N ha-1 equivalent to 11,273 t ha-1 fresh paitan, D4 = 175 kg N ha-1 equivalent to Urea 380 kg ha-1, P2O 149.76 kg ha-1, K2O 100 kg ha-1. The treatment is given once a week before planting. Parameters observed were plant height and the number of tubers. The results of the study showed that paitan organic fertilizer equivalent to 380 kg N ha-1 was able to produce plant growth and yields that were no different when compared to inorganic fertilizers. In addition, the use of organic fertilizers can preserve the environment for long-term agricultural activities.
Effect of Organic Planting Media on the Growth of Purslane (Portucala oleracea L.) Seedling F. Deru Dewanti; Sukendah; Puji Lestari Tarigan; Yonny Koentjoro
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3205

Abstract

Purslane is an annual plant that has various benefits. This plant contains omega 3 which is equivalent to other types of vegetables. So far, purslane is still considered a weed, so it doesn't have a cultivation technique to get the results. This study aims to obtain a combination of planting media for the growth of purslane. This research is the beginning to increase the purslane omega 3 content. Because genetic factors and environmental conditions can affect the growth and development as well as the chemical content of plants. The experimental design used a completely randomized design (CRD). The planting media used were: soil, soil + husk charcoal, soil + compost, and soil + husk charcoal + compost. The treatment was repeated 4 times, so there are 12 observation units. Observations were made on the number of leaves and the number of branches. The results showed that the combination of soil+compost gave the best effect on the number of leaves and the number of branches of the purslane seedling
Agronomic Characteristics of Various Soybean Varieties (Glycine Max, Merril) Under Drought Stress Conditions Yonny Koentjoro; Sukendah; F. Deru Dewanti
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi 2023
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2024.4011

Abstract

Drought conditions are a problem that is often found in soybean cultivation because in general soybeans are planted in the dry season where production is largely determined by the amount of water given. This study aims to evaluate the physiological and production characteristics of several soybean varieties under drought-stress conditions. 10 soybean varieties were tested at three levels of watering. This study was designed using a Completely Randomized Design with Factorial. The research was carried out in the experimental garden of the Faculty of Agriculture at Universitas Pembangunan Nasional Veteran Jawa Timur. The results showed that increasing the concentration of PEG given in the germination phase decreased germination, primary root length, and number of seminal roots. A significant interaction between varieties and water application occurs in the variable pod weight per plant. The genetic diversity of each variety tested showed differences in all of the observed variables. The decreasing availability of water affects all metabolism in plants, giving 50% of the normal requirement of water shows the lowest results in all observed variables. While giving 75% water is generally not significantly different from giving 100% water for normal needs
Effect of Organic Planting Media on the Growth of Purslane (Portucala oleracea L.) Seedling F. Deru Dewanti; Sukendah; Puji Lestari Tarigan; Yonny Koentjoro
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3205

Abstract

Purslane is an annual plant that has various benefits. This plant contains omega 3 which is equivalent to other types of vegetables. So far, purslane is still considered a weed, so it doesn't have a cultivation technique to get the results. This study aims to obtain a combination of planting media for the growth of purslane. This research is the beginning to increase the purslane omega 3 content. Because genetic factors and environmental conditions can affect the growth and development as well as the chemical content of plants. The experimental design used a completely randomized design (CRD). The planting media used were: soil, soil + husk charcoal, soil + compost, and soil + husk charcoal + compost. The treatment was repeated 4 times, so there are 12 observation units. Observations were made on the number of leaves and the number of branches. The results showed that the combination of soil+compost gave the best effect on the number of leaves and the number of branches of the purslane seedling
Co-Authors -, Moegijanto Agung Mustika Rizki Agus Sulistyono Agus Sulistyono Ahmad Yunus Akbar, Achmad K Faisal Alifia Azzahra Assa Najah Assadiyah Bambang Pujiasmanto Deajeng Putri Safira Nariswari Dhian Satria Yudha Kartika Didik Utomo Pribadi Djoko Purnomo Edi Purwanto Firdaus, Muhammad Bagus Guniarti Guniarti Guniarti Guniarti Guniarti Guniarti Hidayatullah, Muchammad Fajar Ida Retno Moeljani Indrajaya, Rohmad Kalimin, La Ode Radin Arsyahun Kasana, Adinda Fany Koentjoro, Yonny Liliek Liliek M. Djibran, Dayyan Hikmal M. Yuda Namuri Marwa, Sufi Maulana, Hendra Meida, Nur Lathifa Muhammad Muhammad Pangesti Nugrahani Parwi Parwi Pribadi, Nathasya Yusvie Priyadarshini, Rossyda Puji Lestari Tarigan Putra, Chrystia Aji Ramdan Hidayat Ramdan Hidayat Ratna Yulistiani Santoso, Juli Sari, Aisyah Shinta Nila Sholeha, Nadiyatus Sugiarto Sugiarto Sugiarto Sukendah Sukendah Sukendah Sukendah Sukendah Sukendah SUKENDAH SUKENDAH, SUKENDAH Sutini triani, nova Wurjani, Widi Yonny Koentjoro Yonny Koentjoro Yonny Koetjoro Zulfikar Alvin Naufal Zulmi, Shinta Nuraini