scholarly journals Application of litters to inhibit nitrification in Vertisols on sweet corn (Zea mays S.)

2021 ◽  
Vol 18 (1) ◽  
pp. 48
Author(s):  
Supriyadi Supriyadi ◽  
Adiprasetya Widyatama ◽  
Gadis Mona Prinandhika ◽  
Purwanto Purwanto ◽  
Sri Hartati
Keyword(s):  
Sweet Corn ◽  
Nitrogen Fertilizers ◽  
Nitrate Content ◽  
Tithonia Diversifolia ◽  
Senna Siamea ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Maize Plants ◽  
Albizia Falcataria ◽  
Corn Plants

<p>Nitrification, or the process of oxidation of ammonium to nitrate in the soil, needs to be inhibited because it reduces the efficiency of nitrogen fertilizers. Vertisols have 2:1 minerals and have high negative charge, so ammonium is more absorbed by soil particles, whereas nitrate is free to move in the soil and diffuses into the plant tissue or is leached with gravity water. This study aimed to determine the litter treatment that can inhibit the nitrification process in Vertisols on sweet corn plants. This research was conducted in June until November 2019 in the Plastic House of Plesungan, Gondangrejo, Karanganyar, Indonesia. This study used a basic completely randomized design with a single factor (litter type) as an immobilizer. The types of litter used in this study were <em>Gliricidia maculata</em>, <em>Albizia falcataria</em>, <em>Senna siamea</em>, and <em>Tithonia diversifolia</em>. The parameters observed were ammonium content, nitrification potential, average nitrate content, actual nitrification, plant height, number of leaves, and dry crown plant. <em>Tithonia diversifolia</em> gave the highest actual nitrification of 23.26%. <em>Senna siamea</em> has the lowest actual nitrification of 12.36%, followed by <em>Gliricidia maculata</em> with 17.39% and <em>Albizia falcataria </em>with<em> </em>17.67%. This shows that the <em>Tithonia diversifolia</em> litter has the highest value in inhibiting nitrification. Maize plants treated with the <em>Tithonia diversifolia</em> litter had the best plant growth compared to those applied with other treatments. Therefore, among the treatments used, the <em>Tithonia diversifolia</em> litter was most optimal in inhibiting nitrification in Vertisols.</p>

scholarly journals EMISSÃO DE ÓXIDO NITROSO ASSOCIADO AO USO DE UREIA NO CULTIVO DE MELÃO AMARELO

Nativa ◽  
2018 ◽  
Vol 6 (6) ◽  
pp. 600
Author(s):  
Vanessa Cláudia Vasconcelos Segundo ◽  
Renato Innecco ◽  
Ebenézer De Oliveira Silva
Keyword(s):  
Leaf Area ◽  
Aerial Part ◽  
Dry Mass ◽  
Nitrogen Fertilizers ◽  
Root Part ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Brazilian Northeast ◽  
Total Soil Nitrogen

O meloeiro tem grande importância econômica para o Nordeste brasileiro. Entretanto, em seu cultivo utiliza-se insumos que podem prejudicar o ambiente; como, os fertilizantes nitrogenados. Objetivou-se avaliar a emissão de N2O em cultivo de meloeiro amarelo ‘Goldex’. O experimento foi instalado em delineamento inteiramente casualizado, com cinco repetições. Os tratamentos foram: 0 (controle), 1,0; 1,5 e 2 vezes a quantidade de nitrogênio recomendada para cada estádio. Foi analisado o fluxo de N2O, área foliar, número de folhas, massa seca da parte aérea, massa seca dos frutos, massa seca da parte radicular, nitrogênio total do solo, das plantas e N (NH4+ e NO3-) do solo. O fluxo de N2O teve comportamento temporal irregular durante a fase de plântulas e crescente na floração. Os tratamentos afetaram significativamente a área foliar, número de folhas, massa seca da parte aérea, massa seca da parte radicular, nitrogênio da parte aérea e parte radicular das plantas e do solo. A aplicação de nitrogênio, em dosagens superiores à recomendada, não aumentou a produção do meloeiro. E o cálculo do fator de emissão mostrou que a emissão do N2O não atingiu valores prejudiciais ao ambiente.Palavras-chave: fator de emissão, efeito estufa e nitrogênio. NITROUS OXIDE EMISSION ASSOCIATED WITH UREA USE THE YELLOW MELON CROP ABSTRACT: The melon has great economic importance for the Brazilian Northeast. However, in its cultivation uses inputs that can harm the environment; Such as nitrogen fertilizers. The objective of this study was to evaluate the emission of N2O in yellow 'Goldex' cultivar. The experiment was installed in a completely randomized design with five replications. The treatments were: 0 (control), 1.0; 1.5 and 2 times the amount of nitrogen recommended for each stage. N2O flux, leaf area, leaf number, shoot dry mass, fruit dry mass, dry mass of the root portion, total soil nitrogen, of the plants and N (NH4 + and NO3 -) of the soil were analyzed. The flow of N2O had irregular temporal behavior during the seedling phase and increased in flowering. The treatments affected significantly the leaf area, number of leaves, dry mass of the aerial part, dry mass of the root part, nitrogen of the aerial part and root part of the plants and the soil. The application of nitrogen, in dosages higher than the recommended one, did not increase the production of the melon. And the calculation of the emission factor showed that the emission of N2O did not reach values harmful to the environment.Keywords: emission fator, greenhouse and nitrogen.

scholarly journals Azospirillum brasilense associated with nitrogen fertilization promotes improvement in macronutrient contents of maize plants

2021 ◽  
pp. 1043-1050
Author(s):  
Juscelino Gonçalves Palheta ◽  
Ricardo Shigueru Okumura ◽  
Marta Simone Mendonça Freitas ◽  
Marlene Evangelista Vieira ◽  
Gerson Diego Pamplona Albuquerque ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Nitrogen Fertilizers ◽  
Urease Inhibitor ◽  
Maize Production ◽  
Tropical Regions ◽  
Adequate Dose ◽  
Randomized Design ◽  
Maize Plants ◽  
Growth Promoting

The lack of studies on the benefits of growth-promoting bacteria associated with sources and doses of nitrogen fertilizers in maize in tropical regions has raised many doubts on the use of nitrogen management, as well as recommendation for the adequate dose for maize production. Therefore, the objective of this study was to evaluate the effect of the doses and sources of nitrogen associated with the absence and presence of seed inoculated with Azospirillum brasilense in the contents of N, P, K, Ca, Mg and S in the roots, culm and leaf of maize plants. It was used a completely randomized design, in a 4 x 2 x 2 factorial scheme, consisting of four nitrogen doses (0; 60; 120; and 180 kg ha-1 of N), two sources of N (common urea and urea treated with urease inhibitor) and absence and presence of inoculation with Azospirillum brasilense, with four replications. The results identified that the N doses positively influenced the concentration of N, P, and S in the culm of maize plants. The use of urea with urease inhibitor was not efficient in optimizing nitrogen fertilization, providing similar accumulations of macronutrients to common urea. The inoculation with Azospirillum brasilense promoted a concentration of 10.4% of N in the stem when compared to urea without inoculation. Seed treatment with Azospirillum brasilense at a concentration of 1 g / kg of seed at a dose of 180 kg ha-1 of N provided a higher content of macronutrients in corn, regardless of the sources of common urea or urea treated with a urease inhibitor

scholarly journals Effectiveness of Nitrification Inhibition through Addition of Local Litter to Corn Plants in Andisols

2020 ◽  
Vol 14 (7) ◽  
pp. 120
Author(s):  
Andita Sari P.W ◽  
Lintang Panjali S.P ◽  
Purwanto Purwanto ◽  
Sri Hartati ◽  
Supriyadi Supriyadi
Keyword(s):  
Dry Weight ◽  
Utilization Efficiency ◽  
Tithonia Diversifolia ◽  
Living Things ◽  
Potential Nitrification ◽  
Randomized Design ◽  
N Utilization ◽  
Measurement Results ◽  
Soil Media ◽  
Corn Plants

Nitrification is the oxidation process of NH4+ to NO3- microbially. The nitrification process can produce compounds in the form of NO3-, N2O, or NO which can cause environmental pollution through water, soil, or air, thus harming living things. The research was conducted to find ways to inhibit or control nitrification effectively and sustainably. The experiment was carried out in a plastic greenhouse located in Plesungan, Karanganyar until the maximum vegetative planting period of corn around May-June using a completely randomized design three replications. Andisols soil media was taken from Tegalrejo Village, Tengaran District, Semarang Regency 07&ordm;25&#39;28.3 &#39;&#39; LS and 110&ordm;31 &#39;35.7 &#39;&#39; BT with an altitude of 760 meters above sea level. There are 5 treatments, one control, four are natural inhibitor treatments in the form of litter addition. The litter used was Gliricidia maculate, Albizzia falcataria, Senna siamea, and Tithonia diversifolia. Statistical analysis showed that treatment just significantly affect NO2- concentrations (potential nitrification), not significantly affect NH4+, NO3- concentrations, and efficiency utilization of N. However, measurement results in the laboratory and field showed that the addition of local litter could inhibit nitrification, which was demonstrated through the efficiency of N utilization. Tithonia diversifolia because it has the highest average N utilization efficiency of 25.79%, 58.71% more efficient than control treatments. Also followed by plant growth results showed that the root&rsquo;s dry weight and canopy&rsquo;s dry weight positively correlated with NH4+ concentrations and efficient utilization of N, also canopy&rsquo;s dry weight negatively correlated with NO2- concentrations (potential nitrification). The highest results occurred in the Tithonia diversifolia treatment.

scholarly journals APLIKASI RHIZOBAKTERI PEMACU TUMBUH (RPT) DARI AKAR TITONIA (Tithonia diversifolia) TERHADAP PERTUMBUHAN STEK MELATI (Jasminum officinale) PADA ULTISOL

Jurnal Solum ◽  
2018 ◽  
Vol 15 (2) ◽  
pp. 75
Author(s):  
Agustian Agustian ◽  
Anisah Permata Sari ◽  
Lusi Maira
Keyword(s):  
Plant Height ◽  
Plant Growth Promoting Rhizobacteria ◽  
Tithonia Diversifolia ◽  
Branch Number ◽  
Randomized Design ◽  
Plant Growth Promoting ◽  
Number Of Leaves ◽  
Growth Promoting ◽  
Completely Randomized Design

Jasmine plant is a horticultural crop that has promising prospect to be developed in trading. The development of jasmine cultivation is determined by the quality of seedling that can be produced rapidly for planting in the field. The purpose of this research is to study the effect of application of Plant growth-promoting rhizobacteria (PGPR) from titonia root (Tithonia diversifolia) in increasing the growth of jasmine cuttings (Jasminum officinale). This experiment used Completely Randomized Design (RAL) which consists of 7 treatments with 5 replications. The treatments were: A (control), B (Growtone), C (Growtone + 1 ml PGPR), D (Growtone + 2 ml PGPR), E (Growtone + 4 ml PGPR) , F (Growtone + 6 ml PGPR) and G (Growtone + 8 ml PGPR). Data obtained were analyzed statistically with F test at 5% level. The results showed that the application of PGPR can increase the growth of jasmine cuttings. However, the increase in PGPR dose did not have a significant effect on the increase of leaf number, branch number and height of jasmine cuttings. The highest number of leaves, branch and plant height at two months seedling age were found in treatment (C) 1 ml PGPR with 48.60 leaves, 5.80 branch and 22.90 cm plant height that significantly different from other treatments,. Treatment (D) 2 ml PGPR application increased the population of P solubilizing bacteria in rhizosphere from 2.59x104 cfu/g of soil at control to 5.05x105 cfu/g soil and fixing bacteria N (Azospirillium) 3x104 cfu/g soil to 1.41x105 cfu/g soil and Azotobacter to 1.2x 103 cfu/g soil.Key words : Jasmine, PGPR, cuttings, Ultisol

scholarly journals INDUKSI PERTUMBUHAN TUNAS DARI EKSPLAN ANGGREK Dendrobium Heterocarpum Lindl. DENGAN PEMBERIAN HORMON ZEATIN DAN NAA

2017 ◽  
Vol 4 (1) ◽  
pp. 41
Author(s):  
Ni Luh Putu Kayika Febryanti ◽  
Made Ria Defiani ◽  
Ida Ayu Astarini
Keyword(s):  
Sweet Corn ◽  
Shoot Multiplication ◽  
Basic Medium ◽  
Shoot Height ◽  
Randomized Design ◽  
In Vitro Technique ◽  
Number Of Leaves ◽  
Range Test ◽  
Mathematics And Science

Dendrobium heterocarpum Lindl. is a native orchid in Indonesia. Its population continue to decline due to unsustainable exploitation. One solution to increase its population is via in vitro technique propagation. This research aimed to determine effect of hormone addition (Zeatin and NAA) to induce shoot multiplication of D. heterocarpum Lindl. grown in Murashige and Skoog (MS) basic medium. The research was conducted in Tissue Culture Laboratory, Department of Biology, Faculty of Mathematics and Science, Udayana University from November 2015 until March 2016. The experiment employed Completely Randomized Design (CRD) with 20 combinations of treatments, with three replicates each treatment. The treatment werer addition of Zeatin and NAA, with five concentrations of Zeatin (0, 0.1, 0,5, sweet corn and hybrids corn as the natural Zeatin); four NAA concentrations (0, 0.05, 0.1 and 0.5). Variable recorded include such as the number of shoots, roots and explant’s vigor. The quantitative data which include number of leaves and shoots after 12 weeks, were analyzed using Analysis of Variance (ANOVA); and if significantly different, tested further using Duncan Multiple Range Test (DMRT) at 5% level. Z5N3 medium revealed significantly different on amount of leaves and shoot height and also the best medium on amount of roots. Best hormone combination that can induce multiplication of new shoots are medium Z4N3 and Z5N1.

scholarly journals The Influence of Guano Organic Fertilizer in Sustainable Agricultural Systems on Growth and Results of Sweet Corn Plants (Zea mays saccharata L)

2020 ◽  
Vol 3 (2) ◽  
pp. 128-138
Author(s):  
Lukman
Keyword(s):  
Zea Mays ◽  
Plant Height ◽  
Sweet Corn ◽  
Organic Fertilizer ◽  
Fruit Weight ◽  
Stem Diameter ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Number Of Leaves ◽  
Corn Plants

The availability of renewable natural resources needs to be maintained as biological and sustainable survival, the use of guano or bat droppings is one of them, bat droppings can be used as an ingredient for making organic fertilizers for plant growth and yields, so this study aims to determine the effect of guano organic fertilizer dosage. on growth and yield of sweet corn (Zea mays saccharata L). This research was conducted on agricultural land using beds measuring 300 cm x 200 cm x 20 cm. using 4 (four) treatments and 4 (four) replications. Fertilizer dosage treatments were: g0 = without Guano organic fertilizer, g1` = 3 tons of guano organic fertilizer. ha-1 or 1.8 kg. plot-1, g2 = 5 tons of guano organic fertilizer. ha-1 or 3 kg. plot-1, g3 = 7 tons of guano organic fertilizer. ha-1 or equivalent to 4.2 kg. Plot-1. Observation parameters consisted of plant height (cm), number of leaves (strands), stem diameter (cm), fruit diameter (cm), fruit length (cm), fruit weight per plot (kg). The results showed that the use of various doses of organic fertilizer guano g3 = 7 tonnes of organic fertilizer guano ha -1 or equivalent to 4.2 kg/plot had a significant (P < 0.05) effect on plant height, number of leaves of sweet corn plants, and a very significant effect. significantly (P < 0.01) on cob diameter, stem diameter, and fruit weight per plot. The use of guano or bat droppings as organic fertilizer at increasing doses up to 7 tons.ha-1 gave the best results for all research parameters. Bat populations as producers of guano or organic fertilizers need to be maintained and preserved in a sustainable agricultural system.

scholarly journals Pengaruh Pemberian Pupuk N dan Bokashi terhadap Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea mays Saccharata Sturt L.)

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Noor Hikmah Auliani ◽  
Bambang Fredrickus Langai ◽  
Chatimatun Nisa
Keyword(s):  
Zea Mays ◽  
Sweet Corn ◽  
Dry Weight ◽  
N Fertilizer ◽  
Randomized Design ◽  
Wet Weight ◽  
Completely Randomized Design ◽  
Corn Plants ◽  
Weight Number ◽  
Number Of Seeds

This research was conducted in August - November 2019 in Tungkaran Village (Maju Bersama Farmer Group) Martapura Kab. Banjar, South Kalimantan Province and Laboratory of Agroecotechnology Production, Faculty of Agriculture, ULM Banjarbaru. This experiment used a completely randomized design (CRD) 2 factors which included 5 doses of N fertilizer (first factor) and 4 doses of bokashi fertilizer (second factor) with 2 replications. The results of this research stated that the most significant impact on the interaction of N and bokashi fertilizers were plant height (28 dast and 35 dst), plant wet weight, plant dry weight, number of seeds / rows, many cob weighted and many ears without weight. sweet corn plants, namely the N fertilizer at a dose of 90 kg N/ha to 180 kg N/ha as well as the bokashi fertilizer at a rate of 15 tons/ha.

scholarly journals PEMUPUKAN UREA DAN PACLOBUTRAZOL TERHADAP PERTUMBUHAN TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt.)

EUGENIA ◽  
2012 ◽  
Vol 18 (1) ◽  
Author(s):  
Pemmy Tumewu ◽  
Paula Ch. Supit ◽  
Ridson Bawotong ◽  
Anni E. Tarore ◽  
Selvie Tumbelaka
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilizer ◽  
Randomized Trials ◽  
Sweet Corn ◽  
Higher Plants ◽  
Urea Fertilizer ◽  
Factor I ◽  
Factor Ii ◽  
Number Of Leaves ◽  
Corn Plants

ABSTRACT The study aims to determine the response of sweet corn plants of urea fertilizer and the provision of Paclobutrazol. Randomized trials using Design Group (RAK) Factorial pattern. The experiments are a factor I (A): Nitrogen fertilizer, Ao = Without fertilization, A1 = 100 kg N / ha, A2 = 200 kg N / ha, and Factor II (B): The concentration of Paclobutrazol ie, Bo = Without Paclobutrazol, B1 = 500 ppm, B2 = 1000 ppm. Variables observed were: 1) Higher Plants, 2) The number of leaves. Data were analyzed using a variety of analysis followed by LSD 5%. The results showed that the interaction between nitrogen fertilizer and Paclobutrazol is not significant  on sweet corn plants but interaction on the number of leaves. Paclobutrazol independently affect the height of sweet corn plants. Giving Paclobutrazol 500 ppm and 1000 ppm to corn plants are shorter than without Paclobutrazol. Keywords: Nitrogen fertilizer, Paclobutrazol, and sweet corn crops ABSTRAK Penelitian bertujuan untuk mengetahui respon tanaman jagung manis terhadap pemupukan urea dan Paclobutrazol. Percobaan acak menggunakan Design Group (RAK) pola faktorial. Percobaan adalah faktor I (A): pupuk Nitrogen e Ao = Tanpa pembuahan, A1 = 100 kg N / ha, A2 = 200 kg N / ha, dan Faktor II (B): Konsentrasi Paclobutrazol yaitu, Bo = Tanpa paclobutrazol, B1 = 500 ppm, B2 = 1000 ppm. Variabel yang diamati adalah: 1) Tanaman tinggi, 2) Jumlah daun. Data dianalisis dengan menggunakan berbagai analisis diikuti oleh Uji Perbedaan Terkecil Real (LSD) 5%. Hasil penelitian menunjukkan bahwa interaksi antara pupuk nitrogen dan Paclobutrazol tidak nyata pada tinggi tanaman jagung manis tapi interaksi nyata pada jumlah daun. Paclobutrazol mempengaruhi tinggi tanaman jagung manis. Pemberian Paclobutrazol 500 ppm dan 1000 ppm memberikan tanaman jagung lebih pendek daripada tanpa Paclobutrazol. Kata kunci: Pupuk nitrogen, Paclobutrazol, dan tanaman jagung manis

scholarly journals CRESCIMENTO INICIAL E DIAGNOSE NUTRICIONAL DE PLANTAS DE MILHO CULTIVADAS COM OMISSÃO DE MACRONUTRIENTES EM ARGISSOLO

Nativa ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 567-571
Author(s):  
Janderson Carmo Lima ◽  
Marilza Neves Nascimento ◽  
Railda Santos Jesus ◽  
Alismário Leite Silva ◽  
Anacleto Ranulfo Santos ◽  
...  
Keyword(s):  
Zea Mays ◽  
Growth Parameters ◽  
Nitrogen Concentration ◽  
Dry Mass ◽  
Initial Growth ◽  
Randomized Design ◽  
Sexual Propagation ◽  
Maize Plants ◽  
Phosphorus And Potassium ◽  
Corn Plants

O objetivo do trabalho foi avaliar o crescimento inicial e diagnose nutricional de plantas de milho cultivadas com omissão de macronutrientes em Argissolo. O experimento foi desenvolvido em estufa, tendo como substrato Argissolo amarelo distrocoeso, utilizou-se vasos com capacidade de 3 dm³, tendo como tratamentos: Solo sem adubação, Adubação referência e omissão de nitrogênio (N), fósforo (P) e potássio (K) respectivamente, mantendo cinco repetições por tratamento, totalizando 25 unidades experimentais, em delineamento inteiramente casualizado. Foi realizado o plantio via propagação sexuada e após uma semana foi feito o desbaste, deixando apenas uma planta por vaso. Aos 30 dias após a aplicação dos tratamentos, foram avaliados os parâmetros de crescimento: altura das plantas, número de folhas, diâmetro do colmo, massa seca (MS) da parte aérea (PA) e raiz (R), além das determinações nutricionais: concentração de nitrogênio, fósforo e potássio na PA e R. Os resultados encontrados foram submetidos a análise de variância e posteriormente ao teste de medias de acordo a significância. O crescimento inicial das plantas de milho foi severamente comprometido com a ausência dos nutrientes N e P, destacando assim a importância dessa suplementação. A diagnose nutricional mostrou que a omissão dos macronutrientes comprometeu o acúmulo desses elementos. Palavras-chave: gramíneas; fertilidade do solo; nutrição mineral de plantas; Zea mays.   Initial growth and nutritional diagnosis of maize plants cultivated with omission of macronutrients in argissolo   ABSTRACT: The objective of this work was to evaluate the initial growth and nutritional diagnosis of corn plants cultivated with omission of macronutrients in Argisol. The experiment was carried out in a greenhouse with subsoil yellow dystrocoes, using pots with a capacity of 3 dm³, using as treatments: Soil without fertilization, reference fertilization and omission of nitrogen (N), phosphorus (P) and potassium (K), maintaining five replicates per treatment, totaling 25 experimental units in a completely randomized design. Planting was carried out via sexual propagation and after one week the thinning was done, leaving only one plant per pot. At 30 days after application of the treatments, growth parameters were evaluated: plant height, leaf number, shoot diameter, shoot dry mass (AP) and root (R), in addition to the nutritional determinations: nitrogen concentration, phosphorus and potassium in PA and R. The results were submitted to analysis of variance and later to the test of means according to significance. The initial growth of corn plants was severely compromised by the absence of N and P nutrients, thus highlighting the importance of this supplementation. The nutritional diagnosis showed that omission of macronutrients compromised the accumulation of these elements. Keywords: grasses; soil fertility; mineral nutrition of plants; Zea mays.

scholarly journals Penggunaan Metode Pemupukan Awal Broadcast Incorporated Menggunakan Mesin Tanam Terintegrasi Dan Pengaruhnya Pada Fase Awal Pertumbuhan Tanaman Jagung

2018 ◽  
Vol 11 (2) ◽  
pp. 57-66
Author(s):  
Agustami Sitorus
Keyword(s):  
Coefficient Of Variation ◽  
Sweet Corn ◽  
Fertilizer Application ◽  
Hybrid Corn ◽  
Starter Fertilizer ◽  
Length Width ◽  
Number Of Leaves ◽  
Corn Plants ◽  
Planting Method ◽  
The Impact

Abstract. Aplikasi penggunaan pupuk kimia pada pertanian yang belum tepat takaran, waktu, jenis dan tempat pemberiannya menjadi isu pencemaran lingkungan di dunia akhir dekade ini. Suatu metode pemupukan yang lebih presisi dan efisien terus dicari dan diteliti hingga saat ini. Metode penebaran pupuk di dalam tanah (broadcast incorporated) menjadi hal baru yang terus dikembangkan. Oleh karena itu, penelitian ini bertujuan untuk mengukur penyebaran pupuk hasil aplikasi metode pemupukan broadcast incorporated sebagai pupuk awal (starter) untuk budidaya jagung. Aplikasi pemupukan awal menggunakan mesin penanam dan pemupuk jagung terintegrasi yang telah dikembangkan pada penelitian sebelumnya. Untuk mengetahui dampak penggunaan metode pemupukan dan mesin tersebut dilakukan pengamatan terhadap 20 tanaman jagung. Pengamatan dilakukan hingga 14 hari setelah tanam (HST) terhadap tinggi dan jumlah daun yang muncul dari benih jagung hibrida dan jagung manis. Metode tanam yang digunakan adalah jajar legowo dengan 1-3 benih per lubang tanam dan jarak antar tanamannya adalah ± 20 cm. Sebuah kotak persegi berukuran panjang, lebar dan tinggi masing-masing 15 cm, 15 cm, dan 15 cm didesain sebagai peralatan untuk pengambilan sample. Wadah tersebut diberi sekat setiap 5 cm sehingga terdapat 27 ruang dalam kotak tersebut. Jenis pupuk yang digunakan adalah NPK dengan distribusi ukuran butiran 2.36 mm - 4.76 mm sebanyak 81.20%. Dosis pemupukan yang diterapkan adalah 150 kg/ha atau 11.25 g/m alur tanam. Hasil penelitian menunjukkan bahwa pada semua sekat sampel ditemukan pupuk NPK dengan rata-rata 0.071±0.035 g. Hal ini mengindikasikan bahwa pupuk telah tercampur dan tersebar didalam tanah. Nilai coefficient of variation dari sebaran pupuk termasuk dalam klasifikasi sangat teracak atau tercampur. Hasil pengamatan menunjukkan bahwa parameter tinggi tanaman dan jumlah daun pada benih jagung hibrida dan jagung manis (14 HST) masing-masing adalah 11.9±2.6 cm, 3.85±0.4 daun, 10.7±2.3 cm, 3.4±0.5 daun. The Use Of Broadcast Incorporated As A Method Of Starter Fertilizers Using Integrated Corn Transplanter And The Effect On The First Phase Of Corn Growth Abstrak. The application of chemical fertilizers to agriculture that is not precisely measured, not on time, not suitable for the type and not ideal for the place becomes an issue of environmental pollution at the end of this decade. A more precise and efficient fertilization method is continually being search and investigation to date. The method of broadcast incorporated is a new thing that continues to be developed. Therefore, this study aims to measure the broadcast incorporated of fertilizers as a starter fertilizer for corn cultivation. The starter fertilizer application uses integrated corn growers and fertilizers which have been developed in previous studies. A total of 20 corn plants were observed to determine the impact of using the fertilization method and the machine. Observations were made up to 14 days after planting (DAP) on the height and number of leaves that emerged from hybrid corn seeds and sweet corn. The planting method used is jajar legowo with 1-3 seeds per planting hole, and the distance between plants is ± 20 cm. A container of length, width, and height of 15 cm, 15 cm, and 15 cm respectively is designed as equipment for sampling. The container is given an insulation every 5 cm so that there are 27 spaces in the box. The type of fertilizer used is NPK with a grain size distribution of 2.36 mm until 4.76 mm as much as 81.20%. The applied fertilizer dose is 150 kg/ha or 11.25 g / m planting groove. The results showed that in all sample partition NPK fertilizer was found with an average of 0.071±0.035 g. This indicates that the fertilizer has been mixed and spread in the soil. The value of the coefficient of variation from the distribution of fertilizers included in the classification is highly randomized or mixed. The results showed that the parameters of plant height and the number of leaves on hybrid corn seeds and sweet corn (14 DAP) were 11.9±2.6 cm, 3.85±0.4 leaves, 10.7±2.3 cm, 3.4±0.5 leaves, respectively.

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