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Novpriansyah, Hery
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PENGARUH ASAM HUMAT DAN PEMUPUKAN P TERHADAP POPULASI DAN KEANEKARAGAMAN MESOFAUNA TANAH PADA PERTANAMAN JAGUNG DI TANAH ULTISOL Nugroho, Agung; Niswati, Ainin; Novpriansyah, Hery; Arif, MA Syamsul
Jurnal Agrotek Tropika Vol 9, No 3 (2021): JURNAL AGROTEK TROPIKA VOL 9, SEPTEMBER 2021
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v9i3.5300

Abstract

Ultisol merupakan salah satu jenis tanah yang memiliki masalah kemasaman tanah, bahan organik dan nutrisi makro rendah dan memiliki ketersediaan P sangat rendah. Usaha yang dapat dilakukan untuk meningkatkan kualitas tanah ultisols yaitu dengan menerapkan penggunaan pupuk P dengan salah satu bahan pembenah tanah (asam humat). Penelitian bertujuan untuk mempelajari pengaruh aplikasi asam humat, pemupukan P, dan interaksi antara keduanya terhadap populasi dan keanekargaman mesofauna tanah. Penelitian ini dilaksanakan Desember 2018 sampai dengan April 2019 di Kebun Percobaan Badan Pengkajian Teknologi Pertanian (BPTP) Natar, menggunakan Rancangan Acak Kelompok yang disusun secara faktorial dengan dua faktor  perlakuan. Faktor pertama yaitu aplikasi  asam humat yang dibagi menjadi 3 taraf dosis yaitu tanpa aplikasi asam huma t(H0), asam humat 15 kg ha-1 (H1) dan asam humat 30 kg ha-1(H2). Faktor kedua yaitu pemupukan P yang dibagi menjadi 4 taraf dosis yaitu tanpa pupukTSP(P0),pupukTSP100kg ha-1(P1), pupuk TSP 200 kg ha-1(P2) dan pupuk TSP 300 kg ha-1  (P3).  Data yang diperoleh diuji homogenitas ragamnya dengan uji Bartlett dan aditifitas data diuji dengan uji Tukey. Selanjutnya dilakukan uji Beda Nyata Terkecil (BNT) pada taraf 5%. Hubungan antara C-organik tanah, pH tanah, kadar air tanah, dan suhu tanah dengan mesofauna tanah diuji dengan uji korelasi. Hasil penelitian menunjukkan bahwa aplikasi asam humat dan pemupukan P  mampu mempengaruhi populasi dan keanekargaman mesofauna tanah, serta terdapat interaksi  antara aplikasi asam humat dan pemupukan P terhadap populasi dan keanekargaman mesofauna tanah. Hanya terdapat  korelasi antara pH tanah dan suhu tanah  dengan populasi dan keanekaragaman mesofauna tanah.
PENGARUH SISTEM OLAH TANAH JANGKA PANJANG DAN PEMBERIAN PUPUK NITROGEN (KE-34) TERHADAP KANDUNGAN ASAM HUMAT DAN ASAM FULVAT TANAH PADA PERTANAMAN JAGUNG DI POLITEKNIK NEGERI LAMPUNG Afrianti, Nur Afni; Kartini, Bunga; Sarno, Sarno; Novpriansyah, Hery; Supriatin, Supriatin; Utomo, Muhajir
Jurnal Agrotek Tropika Vol 11, No 4 (2023): JURNAL AGROTEK TROPIKA VOL 11, November 2023
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v11i4.8251

Abstract

Asam humat adalah komponen terpenting dari senyawa humus karenamembantu menggemburkan tanah, dan membantu transfer nutrien dari tanah kedalam tanaman, serta meningkatkan retensi kandungan air, dan memacu pertumbuhan mikroba di dalam tanah. Asam fulvat berperan dalam melarutkan sisa-sisa pupuk kimia, memperbaiki tanah dan mengatur aktivitivas mikroorganisme tanah. Olah tanah konservasi (OTK) merupakan cara penyiapan lahan yang dapat mengurangi kehilangan tanah dan air kerena erosi dan penguapan dibandingkan dengan cara-cara penyiapan lahan secara konvensional. Penelitian ini bertujuan untuk mengetahui pengaruh sistem olah tanah dan pemberian pupuk nitrogen jangka panjang pada pertanaman jagung terhadap kandungan asam humat dan asam fulvat tanah, serta mengetahui interaksi anatar sistem olah tanah dan pemupukan nitrogen jangka panjang terhadap asam humat dan asam fulvat tanah. Faktor pertama adalah sistem olah tanah yaitu T1= olah tanah intensif, T2= olah tanah minimum, T3= tanpa olah tanah, dan faktor kedua adalah pemupukan nitrogen yaitu N0= tanpa pemupukan dan N2= pemupukan 200 kg N/ha. Data yang diperoleh diuji homogenitasnya dengan uji Bartlet dan aditifitasnya diuji dengan uji Tukey dan dilakukan analisis ragam kemudian dilanjutkan dengan uji BNJ taraf 5%. Hasil menunjukkan bahwa olah tanah minimum berpengaruh nyata mampu meningkatkan kadar asam humat dibandingkan pada tanpa olah tanah intensif, sedangkan sistem olah tanah tidak berpengaruh nyata terdahap kadar asam fulvat tanah pada kedalaman tanah 0-5 cm, 5-10 cm, dan -10 cm. Pemberian pupuk nitrogen (N) mampu meningkatkan kadar asam humat di dalam tanah, dibandingkan tanpa pemberian pupuk nitrogen. Pemberian pupuk nitrogen (N) juga mampu meningkatkan kadar asam fulvat di dalam tanah daripada tanpa pemupukan nitrogen. Pada sistem olah tanah dan pemupukan nitrogen memiliki interaksi pada kedalaman 0-5 cm, dan 5-10 cm. Pada kedalaman 0-5 cm dan 5-10 cm olah tanah minimum dengan tanpa pemupukan nitrogen nyata meningkatkan kadar asam humat, sedangkan pada tanpa olah tanah dengan pemupukan nitrogen nyata meningkatkan kadar asam humat. Pada pemupukan nitrogen sistem olah tanah nyata meningkat kadar asam humat dibandingkan tanpa pemupukan nitrogen.
Effect of Premium Compost on Soil Carbon Microbial Biomass in Pineapple Plants on Marginal Land Central Lampung Yusnaini, Sri; Aditya, Dinar; Ramadhani, Winih Sekaringtyas; Novpriansyah, Hery; Dermiyati, Dermiyati; Rivaie, Arivin
JOURNAL OF TROPICAL SOILS Vol 29, No 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.135-141

Abstract

Acidic soil reactions, low nutrient content, low organic carbon levels, and low soil biodiversity characterize marginal land. Adding organic matter, such as compost, is expected to rehabilitate these lands. One key biological indicator of successful land rehabilitation by adding organic matter or compost is soil carbon microbial biomass (SCMB). This study aimed to assess the effect of compost on SCMB in pineapple plants. It was designed using a Randomized Completely Block Design with four treatments: Control (P0) = Without compost (Pineapple Cultivation Standard at GGPC), P1 = Cow dung compost (50 Mg ha-1), P2 = Premium compost A (50 Mg ha-1) and P3 = Premium compost B (50 Mg ha-1). Each treatment was replicated four times. The data were analyzed using ANOVA at the 5% significance level, following testing for homogeneity of variance using the Bartlett test and additivity with the Tukey test. Different treatment means were examined using contrast orthogonal tests, and correlation tests were performed to explore relationships among key variables. Results indicated that cow dung and premium compost (A and B) increased SCMB by 89.31% and 84.06%, respectively, at 15 and 16 MAP observations. At 16 MAP observations, soil organic carbon and soil pH were correlated with SCMB; in contrast, at observations 13, 14, and 15 MAP, soil organic carbon, soil pH, soil moisture, and soil temperature did not correlate with SCMB.
PERTUMBUHAN DAN PRODUKSI TIGA KLON UBI KAYU GENJAH PADA TANAH ULTISOL YANG DIBERI CACAHAN BATANG SINGKONG DI LAHAN RISET PT GGP LAMPUNG TENGAH Utomo, Setyo Dwi; Setiawan, Kukuh; Yelli, Fitri; Ardian, Ardian; Novpriansyah, Hery; Yanto, Indri; Syaifudin, Akmad; Saifulloh, Al Azizu; Noerwijati, Kartika
JURNAL AGROTROPIKA Vol 24, No 1 (2025): Jurnal Agrotropika Vol 24 No 1, Mei 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i1.8768

Abstract

Cassava is a plant that is ranked third as a source of food in Indonesia. Apart from that, cassava is also needed in industries such as making tapioca flour. In 2021, cassava production in Lampung will be around 20-25 t/ha, this amount is still below the potential of superior cassava which reaches 35-40 t/ha. Cassava growth and production depend on the variety and land where it is cultivated. This research aims to determine the differences in growth and production of several early maturing cassava clones tested, namely Vamas-1, Vati-1, and UTK on Ultisol soil in the PT GGP research area. This research was carried out on the land of the PT GGP research division, Central Lampung, Lampung. This research was carried out from August 2022 to February 2023. The research method used was a Randomized Block Design (RAK) with one treatment, namely clones. There are 3 clones used, namely Vamas-1, Vati-1, and UTK. The experiment on each clone consisted of 3 replications with 36 plants in each replication, but 5 plants were selected from each replication as samples, so that 45 experimental units were obtained. The observation data was analyzed and then compared with the UJ5 clone data based on the Standard Deviation to determine the early maturation characteristics of the three clones. The results showed that clone treatment had no significant effect on growth and production. The number of fresh sweet potatoes at 24 weeks after planting (WAP) in terms of the quantity of clones Vamas-1, Vati-1, UTK, and UJ5 respectively was 7.3; 6.6; 6.3; and 7.3 fruit/plant with a fresh sweet potato weight of 2316,7; 2183,3; 2150,0; and 1433,3 g/plant. The starch content of Vamas-1, Vati-1, UTK, and UJ5 clones was 26,2%; 25,2%; 25,8%; and 23.2%..Keywords : early, Manihot esculenta, UTK, Vamas-1, Vati-1,
PERTUMBUHAN DAN PRODUKSI TIGA KLON UBI KAYU GENJAH PADA TANAH ULTISOL YANG DIBERI CACAHAN BATANG SINGKONG DI LAHAN RISET PT GGP LAMPUNG TENGAH Utomo, Setyo Dwi; Setiawan, Kukuh; Yelli, Fitri; Ardian, Ardian; Novpriansyah, Hery; Yanto, Indri; Syaifudin, Akmad; Saifulloh, Al Azizu; Noerwijati, Kartika
JURNAL AGROTROPIKA Vol. 24 No. 1 (2025): Jurnal Agrotropika Vol 24 No 1, Mei 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i1.8768

Abstract

Cassava is a plant that is ranked third as a source of food in Indonesia. Apart from that, cassava is also needed in industries such as making tapioca flour. In 2021, cassava production in Lampung will be around 20-25 t/ha, this amount is still below the potential of superior cassava which reaches 35-40 t/ha. Cassava growth and production depend on the variety and land where it is cultivated. This research aims to determine the differences in growth and production of several early maturing cassava clones tested, namely Vamas-1, Vati-1, and UTK on Ultisol soil in the PT GGP research area. This research was carried out on the land of the PT GGP research division, Central Lampung, Lampung. This research was carried out from August 2022 to February 2023. The research method used was a Randomized Block Design (RAK) with one treatment, namely clones. There are 3 clones used, namely Vamas-1, Vati-1, and UTK. The experiment on each clone consisted of 3 replications with 36 plants in each replication, but 5 plants were selected from each replication as samples, so that 45 experimental units were obtained. The observation data was analyzed and then compared with the UJ5 clone data based on the Standard Deviation to determine the early maturation characteristics of the three clones. The results showed that clone treatment had no significant effect on growth and production. The number of fresh sweet potatoes at 24 weeks after planting (WAP) in terms of the quantity of clones Vamas-1, Vati-1, UTK, and UJ5 respectively was 7.3; 6.6; 6.3; and 7.3 fruit/plant with a fresh sweet potato weight of 2316,7; 2183,3; 2150,0; and 1433,3 g/plant. The starch content of Vamas-1, Vati-1, UTK, and UJ5 clones was 26,2%; 25,2%; 25,8%; and 23.2%..Keywords : early, Manihot esculenta, UTK, Vamas-1, Vati-1,
Effect of Premium Compost on Soil Carbon Microbial Biomass in Pineapple Plants on Marginal Land Central Lampung Yusnaini, Sri; Aditya, Dinar; Ramadhani, Winih Sekaringtyas; Novpriansyah, Hery; Dermiyati, Dermiyati; Rivaie, Arivin
JOURNAL OF TROPICAL SOILS Vol. 29 No. 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.135-141

Abstract

Acidic soil reactions, low nutrient content, low organic carbon levels, and low soil biodiversity characterize marginal land. Adding organic matter, such as compost, is expected to rehabilitate these lands. One key biological indicator of successful land rehabilitation by adding organic matter or compost is soil carbon microbial biomass (SCMB). This study aimed to assess the effect of compost on SCMB in pineapple plants. It was designed using a Randomized Completely Block Design with four treatments: Control (P0) = Without compost (Pineapple Cultivation Standard at GGPC), P1 = Cow dung compost (50 Mg ha-1), P2 = Premium compost A (50 Mg ha-1) and P3 = Premium compost B (50 Mg ha-1). Each treatment was replicated four times. The data were analyzed using ANOVA at the 5% significance level, following testing for homogeneity of variance using the Bartlett test and additivity with the Tukey test. Different treatment means were examined using contrast orthogonal tests, and correlation tests were performed to explore relationships among key variables. Results indicated that cow dung and premium compost (A and B) increased SCMB by 89.31% and 84.06%, respectively, at 15 and 16 MAP observations. At 16 MAP observations, soil organic carbon and soil pH were correlated with SCMB; in contrast, at observations 13, 14, and 15 MAP, soil organic carbon, soil pH, soil moisture, and soil temperature did not correlate with SCMB.
KOMBINASI APLIKASI PUPUK KIMIA DAN LIQUID ORGANIC BIOFERTILIZER (LOB) DALAM MENYEDIAKAN HARA Fe, Mn DAN Zn PADA TANAH SAWAH TRIMURJO, LAMPUNG TENGAH Ahmad Rizal Muhaimin; Novpriansyah, Hery; Winih Sekaringtyas Ramadhani
Jurnal Agrotek Tropika Vol. 13 No. 3 (2025): JURNAL AGROTEK TROPIKA VOL 13, AGUSTUS 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i3.11476

Abstract

Pupuk menjadi faktor penting dalam produksi padi. Pemberian pupuk kimia belum cukup memenuhi hara tanaman. Oleh karena itu, aplikasi Liquid Organic Biofertilizer (LOB) diberikan sebagai upaya untuk menambah kesuburan tanah. Penelitian ini bertujuan untuk mengetahui pengaruh pupuk kimia dan LOB terhadap ketersediaan unsur hara mikro, meningkatkan pertumbuhan dan produksi padi, serta aplikasi LOB mampu mengurangi penggunaan pupuk kimia. Penelitian dilakukan di Desa Pujoasri, Trimurjo, Lampung Tengah. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 4 perlakuan dengan 3 ulangan. Kombinasi perlakuan yang diterapkan adalah dosis pupuk. Data dianalisis dengan menggunakan analisis ragam dan apabila berbeda nyata maka dilakukan uji Duncan pada taraf 5%. Penelitian menunjukkan bahwa kombinasi pupuk kimia dan LOB tidak berpengaruh nyata terhadap ketersediaan unsur hara mikro Fe, Mn, dan Zn. kombinasi pupuk kimia dan LOB berpengaruh nyata terhadap pH tanah pada 100 HST di kedalaman 10-20 cm dan C-organik tanah pada 100 HST, jumlah anakan umur 5 HST, 20 HST, 35 HST serta 100 HST, bobot brangkasan padi, bobot gabah basah, berat kering 1000 butir dan bobot produksi padi. LOB berpengaruh dalam mengurangi penggunaan pupuk kimia dengan bobot produksi padi pada P3 (7,17 t ha-1) berbanding dengan kontrol P0 (2,42 t ha-1).
Aplikasi Kombinasi Pupuk Kiserite dan Pupuk NPK Terhadap Nisbah Dispersi Tanah Pada Pertanaman Jagung (Zea mays L.), Bandar Lampung: Application Combination Of Kieserite and NPK Fertilizers on Soil Dispersion Ratio In Maize (Zea Mays L.), Bandar Lampung Ramadhani, Winih Sekaringtyas; Faqina, Sadila; Afandi; Septiana, Liska Mutiara; Novpriansyah, Hery
Agrocentrum Vol. 3 No. 2 (2025): Agrocentrum
Publisher : Agriculture Faculty - UPN "Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/agrocentrum.v3i2.101

Abstract

Changes in corn production are related to the decline in agricultural land quality. One of the main indicators for assessing soil aggregate stability is the dispersion ratio. The efforts made in this study were the application of Kieserite and NPK fertilizers. This study aimed to determine the effect of the combination of Kieserite and NP K fertilizers on the soil dispersion ratio in corn crops, as well as to determine the best combination dose. The study was conducted in Campang Raya, Bandar Lampung from August 2024–May 2025 using a Randomized Block Design (RAK) with four treatments and six replications, namely A = Control, B = Standard Fertilizer (NPK), C = 1 Kieserite + 1 NPK, and D = 1 Kieserite + ¾ NPK. The main parameter was the soil dispersion ratio, with supporting parameters in the form of microaggregate distribution, soil texture, pseudo sand, soil pH, and corn production. The results showed that all treatments still produced the "highly dispersed" category (65.83–73.42%), with the lowest value in treatment C and the highest in the control. Combination of Kieserite + NPK application did not significantly improve the dispersion ratio or microaggregate distribution, but did affect corn production. Treatment C resulted in dry corn kernel production of 2.37 tons ha⁻¹, higher than the control at 1.47 tons ha⁻¹. This increase in corn production is supported by the role of Mg²⁺ ions from kieserite which can improve photosynthesis efficiency, chlorophyll formation, and transport of photosynthesis products to the cob. Magnesium fertilization in the soil plays an important role in stimulating plant metabolism, improving the quality and quantity of harvests, and the supply of NPK nutrients that stimulate root growth and root exudates to aid aggregation.
Co-Authors Aditya, Dinar Afandi Afrianti, Nur Afni Ahmad Rizal Muhaimin Ainin Niswati, Ainin Ardian Ardian Arif, MA Syamsul Dermiyati, Dermiyati Faqina, Sadila Fitri Yelli Kartini, Bunga Kukuh Setiawan Noerwijati, Kartika Nugroho, Agung Ramadhani, Winih Sekaringtyas Rivaie, Arivin Saifulloh, Al Azizu Sarno Sarno Septiana, Liska Mutiara Setyo Dwi Utomo Sri Yusnaini Supriatin Supriatin, Supriatin Syaifudin, Akmad Utomo, Muhajir Yanto, Indri