Efektivitas Pupuk Hayati Bactoplus dalam Meningkatkan Efisiensi Pemupukan NPK pada Tanaman Kentang (Solanum tuberosum L.) Varietas Chitra: Effectiveness of Bactoplus Biofertilizer in Increasing the Efficiency of NPK Fertilizer on Potato Plant (Solanum tuberosum L.) Chitra Variety

This study was undertaken to examine the effectiveness of Bactoplus biofertilizer in increasing the efficiency of NPK fertilization on potato of Chitra variety. The experiment used a two-factor factorial randomized block design, namely: doses of NPK fertilizer (N1= 650 kg ha-1 /100% of the recommendation; N2= 487.5 kg ha-1/75% of the recommendation; and N3= 325 kg ha-1/50% of the recommendation) and Bactoplus biofertilizer (H0 = without Bactoplus biofertilizer and H1 = with Bactoplus biofertilizer). The results showed that the biofertilizer Bactoplus was effective in increasing the efficiency of NPK fertilizer, particularly to plant height at 3 weeks after planting (MST) and number of leaves at 7 MST. At the same dosages of NPK fertilizer, application of biofertilizer increased the plant height at 3 MST and the number of leaves at 7 MST, The best growth was achieved when the plants was treated with 75% of NPK in combination with Bactoplus application. The effect of each factor showed that application of Bactoplus biofertilizer increased growth, yield and quality of potato tubers. In adition, the dose of NPK fertilizer affected the growth of potato plants but did not affect the yield and quality of potato tubers

Respon Pertumbuhan dan Hasil Tanaman Wortel (Daucus carota L.) di Dataran Rendah pada Berbagai Volume Media dan Dosis Ampas Padat Biogas

This study aimed to determine the growth responses and yield of carrot (Daucus carota L.) grown at the lowland at various rates of biogas solid waste and media volumes. The experiment was carried out at Mataram University experimental field in Narmada, West Lombok, NTB with an altitude of 136 m above sea level, from April to July 2019. The experiment was designed according a factorialy Randomized Completed Block Design (RCBD). The first factor consisted of 4 volumes of the media which i.e: 2000 cm3/20 x 20 cm, 4000 cm3/25 x 25 cm, 5000 cm3/30 x 25 cm and 7000 cm3/30 x 30 cm. The second factor consisted of 3 levels of biogas solid waste (bio-slurry) with i.e: 10 tons/ha, 15 tons/ha, and 20 tons/ha. These two factors were combined resulted in 12 treatment combinations. Each treatment was repeated so there was 36 experimental units each with replicate. The results showed that the rates of bio-slurry affected the rate of increase in carrot leaf length and did not significantly affect the other parameters or yield of carrot plants in the lowlands. Rates of 10 tons/ha and 20 tons/ha produced a higher leaf length than 15 tons / ha. The media volumes influenced the rate of increase in leaf length, rate of increase in the number of leaves, plant fresh weight, dry tap root weight and tap root length. The media volume of 5000 cm3 and 7000 cm3 resulted higher growth and yield of carrot plants in the lowlands rates of the media volume of 2000 cm3 and 4000 cm3. There was no interaction between the bio-slurry rates and the media volumes in influencing the growth and yield of carrot plants in the lowlan

The Interaction Effect of Biographical Fertilizer, Organic Fertilizer and Inorganic Fertilizer on the Growth and Results of Red Onion (Allium ascalonicum L.) in Dry Land

Shallot cultivation in dry land must integrate measures to improve the soil's physical, chemical and biological properties and not rely on using inorganic fertilizers with high enough doses. This study aimed to determine the interaction effect between natural fertilizers with organic fertilizer doses and inorganic fertilizer doses on growth and yielded onion (Allium ascalonicum L.) on dry land. This research was conducted on dry land in Labuhan Lombok Village, Pringgabaya District, East Lombok Regency, NTB, from June to September 2022. The design used is Factorial Randomized Block Design (RBD) 3 factors: doses of organic fertilizers, doses of biological fertilizers, and doses of inorganic fertilizers. The quantity of organic fertilizer (O) consists of 2 levels, namely 5 tons/ha (O1) and 10 tons/ha (O2). The biological fertilizer treatment consists of 2 groups: without natural fertilizer (H1) and with biological fertilizer 1 kg/ha biological fertilizer (H2). In comparison, the dose of inorganic fertilizer consists of 3 levels, namely 100% dose (D1), 75% dose (D2) and, 50% dose (D3), 25% dose (D4). Each treatment was combined and added with one control to obtain 17 treatments. Parameters observed included a) Shallot plant growth, including plant height, number of leaves per clump (strand) and number of tillers per clump (saplings); b) Shallot plant yields included wet tuber weight and dry tuber weight. The data obtained were analyzed using analysis of variance (ANOVA). For natural treatment factors, a further test would be carried out with Duncan's Double Distance Mean Difference Test with a level of 5%. The interaction of biological fertilizers with doses of organic and inorganic fertilizers increased the growth and yield of shallots in dry land. The use of organic fertilizer doses of 5 t/ha can reduce the dosage of inorganic fertilizers by 50% and, if accompanied by biological fertilizers, can reduce the use of inorganic fertilizers by up to 75% of the recommended dosage

Pengaruh Kosentrasi dan Frekuensi Pemberian Pupuk Hayati Bio-EXTRIM Terhadap Pertumbuhan dan Hasil Tanaman Wortel (Daucus carota L.) dalam Pot di Dataran Rendah

This study aimed to determine the effect of the concentration and frequency of Bio-EXTRIM biofertilizer applications and their interactions on the growth and yield of carrot (Daucus carota L.) plants cultivated using pots in the lowland. This research was conducted in the rice fields of Siren Hamlet, East Rumbuk Village, East Lombok sub-district, from March toJune 2019, and arranged according to the Randomized Block Design (RBD) factorial with two factors. The first factor was the concentration of  Bio-EXTRIM and the second factor was the frequency of Bio-EXTRIM applications; each consisted of 3 levels and thus resulted in 9 interractio. The interraction were: concentration of 0.25%  with 4 times application, concentration of  0.25% with 5 times application, concentration of 0.25% with 6 times application, concentration of 0.5% with 4 times application, concentration of 0.5% with 5 times application, concentration of 0.5% with 6 times application, concentration of 1% with 4 times application, concentration of 1% with 5  times application, and concentration of 1% with 6 times application. The results showes that the concentration of Bio-EXTRIM biofertilizer had significant effect on the rate of carrot leaf stalks growth, with concentration of 0.25% had the highest leaf stalk growth rate. The frequency of Bio-EXTRIM biofertilizer applications influenced the dry weight of leaf biomass, the middle diameter of the carrot root and the sugar content of the carrot root. The highest dry weight of leaf biomass and diameter of the tuber were obtained in carrot plants treated with Bio-EXTRIM biofertilizer for 4 times, while the sweetest tubers were obtained in carrot plants treated with Bio-EXTRIM biofertilizer for 6 times. However, there was no interaction between the concentration and frequency of Bio-EXTRIM biofertilizers in influencing the growth and yield of carrots grown in the pots in the lowland

Hasil Tanaman Wortel (Daucus carota L.) di Dataran Rendah pada Berbagai Ketebalan Mulsa Jerami Padi

Carrot is one of the vegetables that people like because it has many health benefits related to the content of B vitamins, vitamin C, and other substances, thereby increasing the need or demand, but not in line with the increase in the production of this plant. One of the efforts to increase production is through area expansion, and the lowlands are the target of its development. This study aims to determine the growth and yield of carrots grown in the lowlands by applying rice straw mulch. This research was conducted in a rice field area, in Bagek Polak Village, West Lombok Regency, West Nusa Tenggara with an altitude of 26 m above sea level in July-October 2020. The field experiment with the experimental method was designed according to a Randomized Block Design with one factor, namely the thickness of rice straw mulch. (m0 = no straw mulch; m1 = 1 layer mulch thickness; m2 = 2 layers mulch thickness; m3 = 3 layers mulch thickness; m4 = 4 layers mulch thickness) was repeated four times so that there were 20 experimental units. The results showed that rice straw mulch had a significant effect on the growth and yield of carrots in the lowlands. The use of 4 layers of rice straw mulch was could increase the growth and yield of carrots by 2647.75 gr/m2 or the equivalent of 21,182 tons/ha. layer; expansion; production; vegetables; tuber

Pengaruh Berbagai Macam Media terhadap Pertumbuhan Bibit Kelor (Moringa oleifera Lam.) Asal Stek Batang

This study aimedseedling derived from stem cutting to determine the effect of various media on the growth of drum stick (Moringa oleifera Lam.). Experiment was conducted from March to May 2017 in the nursery located in Dasan Agung, Mataram, with altitude of 16 meters above sea level. The method was experimental method with 6 media treatments: soil, soil+sawdust, soil+cocopeat, soil+corncob, soil+bamboo leaf, and soil+charcoal rice husk. The experimental design was Completely Randomized Design with 5 replications and 5 unit series. The result shows that the media significantly effect on the growth ofsedling stem cutting. The best media forseedling derived from stem cutting were mixture media of soil+ricecharcoal andsoil+cocopea

PELATIHAN TEKNIK DASAR KULTUR JARINGAN TUMBUHAN

Abstrak: Kegiatan ini bertujuan untuk meningkatkan pengetahuan dan keterampilan mitra pengabdian tentang teknik kultur jaringan tanaman. Kegiatan pelatihan dibagi menjadi 2 sesi yaitu sesi pertama, penyampaian materi tentang konsep dasar kultur jaringan, kebutuhan peralatan dan bahan, media, zat pengatur tumbuh, kondisi lingkungan tumbuh, tahapan kultur jaringan dan macam-macam teknik kultur in vitro. Sesi kedua, praktek teknik kultur jaringan di laboratorium meliputi pengenalan laboratorium,alat dan bahan beserta fungsinya, multiplikasi (perbanyakan) tunas anggrek in vitro, kultur kalus, kultur embrio dan kultur mata tunas dengan sistem single node. Kegiatan pengabdian pelatihan teknik dasar kultur jaringan dapat membantu meningkatkan pengetahuan dan keterampilan peserta tentang kultur jaringan. Hal ini dapat dilihat dari antusiasme peserta selama kegiatan dan meningkatnya persentase pemahaman peserta menjadi 54,5% (tingkat pengetahuan baik), 36,4% peserta dengan tingkat pengetahuan cukup, dan 9,1% peserta dengan tingkat pengetahuan kurang.Abstract: This activity aims to improve the knowledge and skills of partners about plant tissue culture techniques. The training activity is divided into 2 sessions, namely the first session, delivering material on the basic concepts of tissue culture, equipment and material requirements, media, growth regulators, growing environmental conditions, tissue culture stages, and various in vitro culture techniques. In the second session, the practice of tissue culture techniques in the laboratory included introducing the laboratory tools and materials and their functions, multiplication (propagation) of orchid shoots in vitro, callus culture, embryo culture, and organ culture using a single node system. Basic technique training of plant tissue culture can help increase participants' knowledge and skills about tissue culture. This can be seen from the participants' enthusiasm during the activity and the increase in the percentage of participants' knowledge to 54,5% (good level of knowledge), 36,4% of participants with a sufficient level of knowledge and 9,1% of participants with a low level of knowledge

Pendampingan Pengembangan Komoditas Hortikultura Unggulan di Dataran Medium Desa Stiling, Lombok Tengah

Di wilayah Lombok Tengah sudah mengembangkan berbagai tanaman buah, holtikultura dan beberapa tanaman unggulan lokal di dataran rendah . Sementara dataran medium yang mempunyai kekhasan tersendiri belum dikembangkan terutama untuk budidaya tanaman tertentu seperti kentang, wortel , paprika, bawang putih dan mentimun jepang yang sementara ini hanya ditanaman di dataran tinggi Sembalun. Oleh karena itu pada kegiatan ini dilakukan pendampingan budidaya tanaman tersebut di dataran medium Stiling , Kecamatan Batukeliang Utara, Lombok tengah . Metode yang digunakan pada kegiatan ini adalah metode action riset dengan melibatkan kelompok tani selama kegiatan yang diawali dengan penyukluhan teknisk budidaya , dilanjutkan dengan kegaiatn demplot penanaman kentang, wortel, paprika , bawang putih dan mentimun jepang. Hasil pendampingan ini menunjukan Kegiatan Pendampingan  Pengembangan Komoditas Hortikultura di dataran Medium Desa Stiling, Lombok Tengah sangat didukung oleh pemangku Kebijakan , Kepala Dinas Pertanian dan oleh Kelompok Tani setempat. Tanaman Kentang, wortel, bawang putih, paprika dan mentimun jepang  dapat tumbuh baik di dataran medium Stiling, Lombok Tengah. Petani peserta telah  mendapatkan pengetahuan dan keterampilan   teknik budidaya tanaman yang dicoba pada kegiatan ini yaitu budidaya kentang, wortel, bawang putih, mentimun jepang dan paprika. Untuk meningkatkan hasil guna dari pendampingan ini disarankan  perlu dukungan yang pendampingan dari pihak pemda Lombok Tengah agar kegiatan pengembangan komoditas hortikultura unggulan dataran medium dapat  berlanjut sesuai dengan harapan para petani. Perlu mempertimbangkan saat tanam yang tepat untuk penanaman kempat komoditas yang ingin dikembangkan di lokasi kegiatan,  dan sesuai dengan karakteristi musim setempat sebaiknya memulai penanaman pada ahir musim hujan atau sekitar bulan Maret / April  Disarankan untuk memperhatikan secara serius masalah ganguan hama dan penyakit tanaman yang sering menjadi kendala dalam budidaya komoditas hortikultura ( terutama kentang ,  tumun jepang dan bawang putih) dan dilakukan pengendalian yang tepat dan efektif berdasarkan prinsip Pengelolaan Hama Terpadu.  Diharapkan hasil kegiatan ini akan meningkatkan pendapatan petani dan masyarakat sekitar, di samping untuk meningkatkan kenekaragaman homoditas hortikultura potensial di dataran medium sebagai alternative usaha tani di kawasan agrowisata Lombok Tengah . Komoditas unggulan seperti kentang, wortel dan paprika diharapkan menjadi andalan untuk dipasarkan di kawasan wisata lainnya seperti di pantai Selatan Mandalika

Initial Characterization of Activated Charcoal from the Indigenous Ziziphus mauritiana Wood from Dryland of Sumbawa

Ziziphus mauritiana is widely found in Sumbawa arid and semi-arid area. It is a drought tolerant plant which grows in areas with extreme conditions. While information of the utilisation of Bidara seeds as activated carbon is available, there are limited resources that use Bidara woods. Therefore, this study aims to characterize the activated charcoal derived from Z. mauritiana wood which was activated using 25%, 30% and 35% of H2SO4 and NaOH. The moisture content, ash content, volatile matter, fixed carbon, and iodine absorption capacity were investigated and compared to the Indonesian National Standard (SNI. 06-3730-1995). The result showed that NaOH activated charcoal obtained higher quality compared to the H2SO4 activated charcoal. The best activated charcoal was obtained from 35% of NaOH which has 1.19% moisture content, 13.21% ash content, 1.42% volatile matter, 84.73% fixed carbon, and 1892.40 mg/g iodine number. This study concludes that the characteristics of Z. mauritiana activated charcoal (except the ash content) comply with Indonesian National Standard and potentially can be developed as an adsorbent.Ziziphus mauritiana is widely found in Sumbawa arid and semi-arid area. It is a drought tolerant plant which grows in areas with extreme conditions. While information of the utilisation of Bidara seeds as activated carbon is available, there are limited resources that use Bidara woods. Therefore, this study aims to characterize the activated charcoal derived from Z. mauritiana wood which was activated using 25%, 30% and 35% of H2SO4 and NaOH. The moisture content, ash content, volatile matter, fixed carbon, and iodine absorption capacity were investigated and compared to the Indonesian National Standard (SNI. 06-3730-1995). The result showed that NaOH activated charcoal obtained higher quality compared to the H2SO4 activated charcoal. The best activated charcoal was obtained from 35% of NaOH which has 1.19% moisture content, 13.21% ash content, 1.42% volatile matter, 84.73% fixed carbon, and 1892.40 mg/g iodine number. This study concludes that the characteristics of Z. mauritiana activated charcoal (except the ash content) comply with Indonesian National Standard and potentially can be developed as an adsorbent

PERTUMBUHAN Kappaphycus alvarezii DENGAN PENAMBAHAN EKSTRAK Sargassum aquifolium

Tujuan penelitian ini adalah mempelajari pengaruh penggunaan Sargassum aquifolium dengan konsentrasi dan lama waktu perendaman yang berbeda terhadap pertumbuhan Kappaphycus alvarezii, serta mengetahui pengaruh penggunaan S. aquifolium terhadap persentase kadar karaginan K. alvarezii. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan faktorial yang terdiri dari dua faktor yaitu faktor 1 berupa konsentrasi ekstrak Sargassum aquifolium dan faktor 2 berupa perlakuan lama perendaman. Faktor 1 terdiri atas 4 perlakuan konsentrasi perendaman yaitu kontrol (K0), konsentrasi 5% (K1), 10% (K2), 15% (K3). Faktor 2 terdiri atas 3 taraf yaitu lama perendaman 30 menit (T1), 60 menit (T2) dan 90 menit (T3).  Data variabel penelitian dianalisis menggunakan analisis sidik ragam (ANOVA) pada taraf kesalahan 5%. Hasil penelitian menunjukkan bahwa pemberian ekstrak Sargassum aquifolium tidak memberikan pengaruh terhadap pertumbuhan rumput laut Kappaphycus alvarezii. Perlakuan K1T3 (perendaman dengan konsentrasi 5% selama 90 menit) menunjukkan hasil tertinggi dari perlakuan lainnya, nilai laju pertumbuhan spesifik 6.11%, pertumbuhan mutlak 663.89 gram, berat kering 197.80 gr dan nilai kadar karaginan yaitu 53.33%. Berat kering terendah diperoleh pada perlakuan K3T3 (perendaman dengan konsentrasi 15% selama 90 menit). Kesimpulan penelitian ini adalah pemberian ekstrak Sargassum aquifolium tidak memiliki pengaruh nyata terhadap pertumbuhan Kappaphycus alvarezii dan kadar karaginan tertinggi adalah 53.33% terdapat pada perlakuan  konsentrasi ekstrak Sargassum aquifolium 5% dengan perendaman selama 90 menit.Kata Kunci: berat kering, ekstrak, karaginan, perendaman, pertumbuhan.GROWTH PERFORMANCE OF Kappaphycus alvarezii WITH ADDING Sargassum aquifolium EXTRACTABSTRACTThis research purpose is to study the effect of adding Sargassum aquifolium extract dan time of submersion for growth performance and carrageenan content of Kappaphycus alvarezii. This research used completely randomized design with factorial treatment, consist of two factors. The first factor is concentrations of Sargassum aquifolium extract. The second factor is time of submersion. The first factor consist of 4 treatments are control (K0), consentrasion 5% (K1), 10% (K2), 15% (K3). The second factor consist of submersion time of 30 minutes (T1), 60 minutes (T2) dan 90 minutes (T3). Variable datas of this research was analized using ANOVA (Analysis of Variance) at 5%. The result showed that Sargassum aquifolium extract was not significantly affected growth performace of Kappaphycus alvarezii (P0,05). K1T1 (submersion with a concentration of 5% during 90 minutes) showed the higest results from other treatments, specific growth 6.11%, absolute growth 663.89 g, dry weight 197.80 g and carrageenan content 53.33%. The lowest dry weight is K3T3 (submersion with a concentration of 15% during 90 minutes). The conclusion are Sargassum aquifolium extract did not have any real effect on performance growth of Kappaphycus alvarezii and the highest levels of 53.33% carrageenan contained in the treatment Sargassum aquifolium extract concentration of 5% with submersion time of 90 minutes.Keywords: carrageenan, dry weigth, extract, growth, submersion