scholarly journals Application of Lime and Gypsum and Their Effect on Micronutrients (Fe, Zn, Mn, and Cu) Uptake of Sugarcane Planted in Central Lampung Ultisols

2017 ◽  
Vol 2 (2) ◽  
pp. 093
Author(s):  
Christoporus Sudradjat Widiarso ◽  
Benito Heru Purwanto ◽  
Eko Hanudin ◽  
Azwar Ma’as
Keyword(s):  
Soil Fertility ◽  
Experimental Research ◽  
Significant Influence ◽  
Research Field ◽  
Fe Content ◽  
Split Plot ◽  
Main Plot ◽  
Lime Application ◽  
Cu Uptake ◽  
Gypsum Application

Most of sugarcane are cultivated on Ultisols with low inherent soil fertility in Central Lampung. This experiment aimed to observe the effect of lime (CaCO3) and gypsum (Ca2SO4) on Fe, Zn, Mn, and Cu uptake of sugarcane. The experiment was conducted in Experimental Research Field of Gula Putih Mataram Enterprise, Central Lampung District. The experiment was designed using a split-plot, which consisted of lime application as the main plot and gypsum application as the sub plotwith three replications. The results showed that there were no significant influence of lime and gypsum application on micronutrient content of the soil. However, application of 2 and 3 tons of lime/ha could reduce soil Fe content about 349.86 and 328.07 ppm respectively within 0-20 cm soil in depthand it was significantly lower than comparing to Fe content (around 457.68 ppm) in control. Similarly, the effect of gypsum application at 0.25 ton.ha-1 decreased Fe content (355.42 ppm), while Fe content of non-gypsum application soil showed around 410.34 ppm. The analysis of other micronutrients did not indicate asignificant effect of lime or gypsum application.

scholarly journals Seleksi kacang tanah (Arachis hypogaea L.) lokal Bangka toleran cekaman salinitas

Jurnal Agro ◽  
10.15575/3366 ◽  
2018 ◽  
Vol 5 (2) ◽  
pp. 103-113
Author(s):  
Gigih Ibnu Prayoga ◽  
Eries Dyah Mustikarini ◽  
Novin Wandra
Keyword(s):  
Salinity Stress ◽  
Research Field ◽  
Saline Control ◽  
Low Salinity ◽  
Randomized Design ◽  
Arachis Hypogaea L ◽  
Plant Breeding Program ◽  
Split Plot ◽  
Moderate Salinity ◽  
Main Plot

Seleksi cekaman salinitas kacang tanah dilakukan untuk mendapatkan tetua yang toleran terhadap salinitas dan memperbaiki sifat kacang tanah dalam kegiatan pemuliaan tanaman. Informasi genotip unggul kacang tanah toleran terhadap salinitas sangat diperlukan sebagai dasar pemilihan genotip tetua yang adaptif pada lahan salin. Penelitian ini bertujuan untuk memperoleh kacang tanah yang memiliki sifat toleran cekaman salinitas dan menentukan konsentrasi air laut yang dapat ditoleransi oleh tanaman. Penelitian ini dilaksanakan di Kebun Percobaan dan Penelitian, Jurusan Agroteknologi, Fakultas Pertanian Perikanan dan Biologi, Universitas Bangka Belitung, pada bulan Februari–April 2018. Penelitian menggunakan Rancangan Acak Lengkap (RAL) pola split plot dengan 2 ulangan. Petak utama adalah tingkat salinitas yaitu non-salin (kontrol), salinitas rendah, dan salinitas sedang. Anak petak adalah 5 genotip kacang tanah yaitu aksesi lokal (Belimbing dan Arung dalam) dan varietas nasional (Tuban, Kancil, dan Hypoma). Hasil penelitian menunjukkan bahwa varietas Hypoma memiliki karakter jumlah daun dan diameter batang yang paling baik, namun tidak toleran terhadap cekaman salinitas sedang. Aksesi Belimbing merupakan genotip toleran salinitas rendah berdasarkan nilai indeks toleransi cekaman salinitas. Selection of groundnut tolerant to salinity stress is carried out to obtain parent genotypes tolerant to salinity and improve the characteristics of groundnut in plant breeding program. The information of superior groundnut genotypes tolerant to salinity is necessary as the basic of genotypes selection adaptive in the saline area. The research aimed to obtain the groundnut tolerant to salinity stress and determine the concentration of seawater that can be tolerated by groundnut. This research was conducted at The Experiment and Research Field, Faculty of Agriculture Fisheries and Biology, University of Bangka Belitung, from February to April 2018. The research used Complete Randomized Design (CRD) split plot with two replications. Main plot was concentrations of seawater; non-saline (control), low salinity, and moderate salinity. The subplot was groundnut genotypes of local accessions (Belimbing and Arung Dalam) and national varieties (Tuban, Kancil, and Hypoma). The results of this research indicated that Hypoma has the best result for plant height and diameter of stem, but intolerant to moderate salinity stress. Belimbing was the genotype with low salinity tolerance based on score index of tolerant salinity stress.

scholarly journals Dosis Pupuk Fosfat Terhadap Pertumbuhan dan Hasil Beberapa Jagung Hibrida

2018 ◽  
Vol 20 (2) ◽  
pp. 34
Author(s):  
Herlina Mega Puspitasari ◽  
Ahmad Yunus ◽  
Dwi Harjoko
Keyword(s):  
Zea Mays ◽  
Primary Source ◽  
Research Field ◽  
Growth And Yield ◽  
Hybrid Corn ◽  
Split Plot ◽  
Main Plot ◽  
Research Fact ◽  
Plot Design

<p>Corn (Zea mays) is a primary source of food after rice, considered as cerealia crops. This research to analyzing about growth and yield of several variety of hybrid corn on phospat fertilizer dosage giving because in Indonesia the land is nutrient-deficient phospat. This research has been held on June until October 2017 in Kecamatan Piyungan, Kabupaten Bantul, Daerah Istimewa Yogyakarta. Plan which used in this research are Split Plot Design which consist of 2 factors which observed three varieties of hybrid corn (ABCD, EFGH and IJKL) as main plot and phospat fertilizer dosage giving (0, 100 and 150 kilogram ha)  as  sub plot which repeated three times. Research fact found that the topography of the research field is 40% of the plains with a slope of less than 2% and 60% of hilly areas with a slope above 40.1% and the type of the soil is regosol with the highest temperature recorded at the study site was 32ºC with the lowest temperature of 23ºC, then phospat fertilizer dosage is strongly influence the growth and yield of each hybrid corn variety. The best dosage of fosfat fertilizer for corn growth is 150 kilogram ha on each variety, which are ABCD variety, EFGH, and IJKL. The best habit of the growth and yield of hybrid corn is on the phospat fertilizer dosage giving at 150 kilogram ha with variety EFGH.</p>

scholarly journals Interaction of dicamba, fluthiacet-methyl, and glyphosate for control of velvetleaf (Abutilon theopharsti) in dicamba/glyphosate-resistant soybean

2021 ◽  
pp. 1-21
Author(s):  
Jose H. S. de Sanctis ◽  
Amit J. Jhala
Keyword(s):  
United States ◽  
Field Experiments ◽  
The United States ◽  
Application Rate ◽  
Herbicide Application ◽  
Soybean Yield ◽  
Agronomic Crops ◽  
Split Plot ◽  
Main Plot ◽  
Biomass Reduction

Abstract Velvetleaf is an economically important weed in agronomic crops in Nebraska and the United States. Dicamba applied alone usually does not provide complete velvetleaf control, particularly when velvetleaf is greater than 15 cm tall. The objectives of this experiment were to evaluate the interaction of dicamba, fluthiacet-methyl, and glyphosate applied alone or in a mixture in two- or three-way combinations for velvetleaf control in dicamba/glyphosate-resistant (DGR) soybean and to evaluate whether velvetleaf height (≤ 12 cm or ≤ 20 cm) at the time of herbicide application influences herbicide efficacy, velvetleaf density, biomass, and soybean yield. Field experiments were conducted near Clay Center, Nebraska in 2019 and 2020. The experiment was arranged in a split-plot with velvetleaf height (≤ 12 cm or ≤ 20 cm) as the main plot treatment and herbicides as sub-plot treatment. Fluthiacet provided ≥ 94% velvetleaf control 28 d after treatment (DAT) and ≥ 96% biomass reduction regardless of application rate or velvetleaf height. Velvetleaf control was 31% to 74% at 28 DAT when dicamba or glyphosate was applied alone to velvetleaf ≤ 20 cm tall compared with 47% to 100% control applied to ≤ 12 cm tall plants. Dicamba applied alone to ≤ 20 cm tall velvetleaf provided < 75% control and < 87% biomass reduction 28 DAT compared with ≥ 90% control with dicamba at 560 g ae ha−1 + fluthiacet at 7.2 g ai ha−1 or glyphosate at 1,260 g ae ha−1. Dicmaba at 280 g ae ha−1 + glyphosate at 630 g ae ha−1 applied to ≤ 20 cm tall velvetleaf resulted in 86% control 28 DAT compared with the expected 99% control. The interaction of dicamba + fluthiacet + glyphosate was additive for velvetleaf control and biomass reduction regardless of application rate and velvetleaf height.

Phosphorus release from the bottom sediments of Lake Rusałka (Poznań, Poland)

2010 ◽  
Vol 39 (4) ◽  
Author(s):  
Katarzyna Kowalczewska-Madura ◽  
Ryszard Gołdyn ◽  
Renata Dondajewska
Keyword(s):  
Experimental Research ◽  
Bottom Sediments ◽  
Significant Influence ◽  
Eutrophic Lake ◽  
Phosphorus Release ◽  
Internal Loading ◽  
Release Process

Phosphorus release from the bottom sediments of Lake Rusałka (Poznań, Poland)Experimental research conducted on bottom sediments from the eutrophic Lake Rusałka (Poznań, Poland) indicated that the phosphorus release process has a significant influence on the functioning of the ecosystem. Internal loading was very intense in the deepest part of the lake, where it reached up to 29.84 mg m

PENGARUH JENIS MULSA DAN PUPUK GANDASIL-B TERHADAP PERTUMBUHAN DAN HASIL TANAMAN CABAI RAWIT (Capsium frustescens L.) PADA TANAH GAMBUT PEDALAMAN (The Effect of Mulch Type and Gandasil-B Fertilizer on The Growth and Yield of Chili Pepper (Capsicum fr

AgriPeat ◽  
2019 ◽  
Vol 18 (01) ◽  
pp. 1-9
Author(s):  
Admin Journal
Keyword(s):  
Block Design ◽  
Peat Soil ◽  
Chili Pepper ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Randomized Block Design ◽  
Different Types ◽  
Split Plot ◽  
Main Plot ◽  
Black Plastic

                                                                                                                                       ABSTRACTThis research was aimed to investigate the effect of mulch type and gandasil-B fertilizer on the growth and yield of chili pepper (Capsicum frutescens L.) on inland peat soil. The method used in this research was two-factor Randomized Block Design with split plot arrangement and three replications. The main plot was the mulch type which consists of three treatments, namely: control, cogon grass and silver-black plastic mulch, and as sub plot was the dose of gandasil-B which consists of four 4 levels, namely: 0, 1, 2, and 3 g L-1 water. Results showed that the interaction between different types of mulch and gandasil-B fertilizer only had significant effect on the diameter of the stem, the number of productive branch, the number of fruit per plant, and the weight of fruit per plant. The utilization of silver-black plastic mulch and gandasil- B fertilizer at the concentration of 3 g L-1 water showed more number of productive branch (14.00 branches) and number of fruit (151.17 fruits) per plant and the weight of fruit (166.52 g) per plant was significantly higher.Keywords : Mulch, cogon grass, silver-black plastic, Gandasil-B, inland peat soil                                                                                                                                       ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh jenis mulsa dan pupuk gandasil-B terhadap pertumbuhan dan hasil tanaman cabai rawit (Capsicum fruestescens L.) pada tanah gambut pedalaman. Percobaan ini menggunaakan Rancangan Acak Kelompok (RAK) disusun secara split plot dengan dua faktor perlakuan dan tiga ulangan. Sebagai petak utama, yaitu jenis mulsa terdiri dari tiga jenis, yaitu : kontrol, mulsa alang-alang dan mulsa plastik hitam perak. Sebagai anak petak adalah dosis pupuk Gandasil-B terdiri dari 4 taraf perlakuan, yaitu : 0, 1, 2 dan 3 g L-1 air. Hasil penelitian menunjukkan bahwa interaksi penggunaan jenis mulsa dengan pupuk gandasil-B hanya berpengaruh nyata terhadap diameter batang, jumlah cabang produktif, jumlah buah per tanaman dan berat buah per tanaman. Penggunaan mulsa plastik hitam perak dan pupuk gandasil-B 3 g L-1 air diperoleh jumlah cabang produktif (14.00 cabang) dan jumlah buah (151.17 buah) per tanaman) nyata lebih banyak dan berat buah (166.52 g) per tanaman nyata lebih tinggi.Kata kunci : Mulsa, alang-alang, plastik hitam perak, pupuk gandasil-B, gambut pedalaman

Effect of varieties and weeding regimes on weed and performance of

2011 ◽  
Vol 1 (3) ◽  
pp. 121-130
Author(s):  
U. Ismaila ◽  
M. G. Kolo ◽  
A. U. Gbanguba
Keyword(s):  
Oryza Sativa ◽  
Active Ingredient ◽  
Oryza Sativa L ◽  
Weed Suppression ◽  
Dichlorophenoxyacetic Acid ◽  
Aerobic Rice ◽  
Split Plot ◽  
Main Plot ◽  
And Performance ◽  
Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intra‐specific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intra‐specific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

scholarly journals Critical time for weed removal in dicamba tolerant soybean as influenced by pre emergence herbicides

2020 ◽  
Vol 29 (1) ◽  
pp. 55-62
Author(s):  
Darko Jovanović ◽  
Ivan Cuvaca ◽  
Jon Scott ◽  
Stevan Knežević
Keyword(s):  
Field Experiment ◽  
Growth Stage ◽  
Critical Time ◽  
Split Plot ◽  
Main Plot ◽  
Plot Design ◽  
Weed Removal

Field experiment was conducted in 2019 at Haskell Agriculture Laboratory, Concord, NE, USA. Goal of the study was to test the influence of PRE-EM herbicides on the Critical Time for Weed Removal (CTWR) in dicamba-tolerant soybean. The study was arranged in a split-plot design which consisted of four herbicide regimes as main plot treatments and seven weed removal timings as subplot treatments, with four replications. The herbicide regimes included: (1) no PRE and glyphosate, (2) acetochlor and dicamba as PRE and glyphosate as POST, (3) acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and (4) acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST. The five weed removal times included the V1, V3, V6, R2 and R5, and there were also weedy and weed-free season long plots. By utilizing herbicide regimes, the CTWR was delayed to 632 GDD (until V4 soybean growth stage, 28 days after emergence) for acetochlor and dicamba as PRE and glyphosate as POST, 861 GDD (until V6 soybean growth stage, 32 days after emergence) for acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and 1060 GDD (until R1 soybean growth stage, 42 days after emergence) for acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST.

scholarly journals Analisis Serapan Hara Nitrogen dan Fosfor Tanaman Kedelai

2018 ◽  
Vol 7 (1) ◽  
pp. 24
Author(s):  
Asrijal Asrijal ◽  
Ambo Upe
Keyword(s):  
Soil Fertility ◽  
Experimental Research ◽  
Rice Field ◽  
Treatment Level ◽  
Field Sample ◽  
Treatment Unit ◽  
Morphology Characteristic ◽  
Crop Type ◽  
On Farm ◽  
Soil Sciences

Experimental research will be executed on farm of rice field sample in BPP Palaguna at Wajo Regency. Obstetrical nutrients Analysis of crop and soil will be done in soil Fertility Laboratory, soil sciences department of Faperta Unhas. This Research aim to analyze the ability of nutrients absorption of soy and maize with the mulch application on rice field rainfed. Research will be done/conducted by using Factorial Device in Group ( RDG). First Factor that is crop type with three treatment level that is L1 = Soy; L2 = Maize; and L3 = Maize + Soy. Second Factor is with mulch (M1) and without mulch (M0). Every treatment unit repeated by 3 times, so there are 18 plot, added a plot which is not cultivated as control for the perception of dynamics of Nitrogen (N) and Phosphorous (P) without palawija cultivation. Reason of the crop election for example because both types of the crop have their own system of root and different morphology characteristic which their possibility will influence the ability of conservation N. Result of analysis indicate that ability of absorption of N and P of maize and soy is better with the mulch application on rice field rainfed

scholarly journals KAJIAN TINGKAT DEKOMPOSISI SERASAH DAUN DENGAN MEMANFAATKAN AGEN PENGENDALI HAYATI TERHADAP PERTUMBUHAN DAN HASIL CABAI MERAH

Agrivet ◽  
2021 ◽  
Vol 26 (2) ◽  
Author(s):  
Oktavia Sarhesti Padmini ◽  
Rukmowati Brotodjojo ◽  
Dyah Arbiwati
Keyword(s):  
Trichoderma Sp ◽  
Split Plot ◽  
Main Plot

Tujuan penelitian untuk mengkaji dampak tingkat dekomposisi serasah daun dan agen pengendali hayati+NPK terhadap pertumbuhan hasil cabai merah. Percobaan menggunakan split plot, disusun menurut Rancangan Acak Kelompok Lengkap dengan tiga ulangan. Sebagai Main plot adalah Dekomposisi serasah daun dengan rasio C/N 28,52 dan dekomposisi serasah daun dengan rasio C / N 16,57. Sub plot adalah jenis agen pengendali hayati dengan enam perlakuan sebagai berikut: 1) Hanya menggunakan NPK dosis rekomendasi (500 kg.ha-1), 2) Kombinasi Trichoderma + 50 % dosis NPK, 3) Kombinasi Mikoriza + 50 % dosis NPK, 4) Kombinasi PGPR + 50 % dosis NPK, 5) Lem pengendalian hama, 6) Stimulant. Data dianalisis varians diikuti oleh Uji Jarak Berganda Duncan. Hasil penelitian menunjukkan bahwa dekomposisi serasah daun dengan rasio C / N 16,57 secara signifikan memperbaiki tinggi tanaman pada hari ke umur 3 MST, jumlah cabang umur 5 MST dan 7 MST serta jumlah buah dan  bobot buah panen pertama dan kedua dibandingkan dengan cabai yang diberi perlakuan dekomposisi serasah daun dengan rasio C / N 28,52. Tanaman lebih tinggi pada penyemprotan stimulan+50% dosis NPK, tetapi tidak diikuti oleh pertumbuhan cabang, serta jumlah dan bobot buah. Kombinasi agen pengendali hayati  jenis Trichoderma sp, Mikoriza sp. dan PGPR + dosis 50% NPK meningkatkan jumlah cabang serta menghasilkan jumlah dan bobot buah, namun, tidak ada perbedaan yang signifikan antara ketiga jenis agen pengendali hayati. Pertumbuhan tanaman yang diberi pupuk NPK memiliki pertumbuhan tanaman paling rendah dibandingkan dengan perlakuan lainnya.

scholarly journals PENGARUH FREKUENSI DAN PERIODE PEMBERIAN PAKAN TERHADAP POTONGAN KOMERSIAL KARKAS AYAM BURAS SUPER

2017 ◽  
Vol 20 (3) ◽  
pp. 118
Author(s):  
OKTAWANTARI E. F. ◽  
E. SUPRIJATNA ◽  
W. SARENGAT
Keyword(s):  
Split Plot ◽  
Main Plot ◽  
Plot Design

Penelitian ini bertujuan untuk mengetahui pengaruh frekuensi dan periode pemberian pakan terhadap potongankomersial karkas. Materi yang digunakan yaitu anak ayam buras super 252 ekor (unsexed) umur sehari dengan bobotawal 37,88 ±1,89 gram. Kandang digunakan berupa tipe litter yang dibagi menjadi 36 unit dengan masing-masingunit berisi 7 ekor ayam. Rancangan percobaan yang digunakan adalah Split Plot Design dengan 4 ulangan yangterdiri dari main plot yaitu 3 taraf frekuensi pemberian pakan dan sub plot yaitu 3 taraf periode pemberian pakan.Data yang diperoleh dianalisis ragam dengan uji F taraf 5%. Hasil penelitian menunjukkan bahwa interaksi antarafrekuensi dengan periode pemberian pakan tidak berpengaruh nyata (p>0,05), dan masing-masing perlakuan tidakmenunjukan pengaruh yang nyata (p>0,05) terhadap potongan komersial ayam buras super. Kesimpulan daripenelitian ini adalah meskipun tidak ada pengaruh perlakuan terhadap potongan komersial karkas tetapi frekuensi1 kali dan periode 14 jam (F1P3) merupakan perlakuan paling efisien untuk diaplikasikan.

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