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

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

2020 ◽  
Vol 3 (2) ◽  
pp. 128-138
Author(s):  
Lukman

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.


2020 ◽  
Vol 8 (3) ◽  
pp. 885
Author(s):  
Riduan Sembiring ◽  
Swati Sembiring ◽  
Seringena Br. Karo

The research aims to determine the effects of Zeolites and Urea fertilizer on the production of maize. It was expected that the results of this study could reduce the use of urea fertilizer in producing corn, so that in the buildup to being more efficient and effective, it could also maintain productive soil conditions. The study was conducted from June-December 2017 in Gurusinga Village, Berastagi District, Karo Regency, North Sumatra, Indonesia, in the elevation of 1,250 meters above sea level, flat topography, andosol soil type (pH of 5.7). The experimental design was a factorial randomized block design. The first factor was the dose of Zeolite (Z) consisting of Z0 = 0 g / plot (control), Z1 = 105 g / plot, Z2 = 210 g / plot, Z3 = 315 g / plot, Z4 = 420 g / plot. The second factor was Urea fertilizer (U) consisting of U0 = 0 g / plant (control), U1 = 2.1 g / plant, U2 = 4.2 g / plant, U3 = 6.3 g / plant, U4 = 8, 4 g / plant with 3 replications. The results showed that the Zeolite and Urea fertilizer had a significant effect on the growth of corn plants (p <0.05) on plant height (cm), stem diameter (mm), and leaf wide (cm2), while the number of leaves (strands) had no significant effect (p> 0.05). Zeolite and Urea fertilizer have a significant effect on the diameter of corncobs, length of corncobs, weight (gross and clean) per (sample and plot) and weight of 100 pieces (p <0.05), while the number of rows/cob has no significant effect (p> 0.05).


1993 ◽  
Vol 7 (4) ◽  
pp. 934-939 ◽  
Author(s):  
Cathy A. Morton ◽  
R. Gordon Harvey ◽  
James J. Kells ◽  
Douglas A. Landis ◽  
William E. Lueschen ◽  
...  

Field experiments were conducted in Michigan, Minnesota, and Wisconsin in 1990 to explore interactions between nicosulfuron applied POST and terbufos insecticide at 0.06 or 0.11 g ai/m of row applied in-furrow on ‘Pioneer 3751’ field corn and ‘Jubilee’ sweet corn. Nicosulfuron at 0, 70, and 140 g ai/ha plus nonionic surfactant and 28% nitrogen fertilizer was applied to both corn types. Field corn response to nicosulfuron and terbufos was similar at all locations, whereas sweet corn injury varied with location. Nicosulfuron injured field corn more when applied at the four-leaf than the three-leaf stage. Injury to both corn types increased as nicosulfuron rate increased or when applied following terbufos. Nicosulfuron at 140 g/ha without terbufos did not reduce yield of either corn type; however, corn previously treated in-furrow with terbufos reduced yield.


1993 ◽  
Vol 8 (2) ◽  
pp. 51-56 ◽  
Author(s):  
Albert Fischer ◽  
Larry Burrill

AbstractLiving mulches are vegetative covers that can be grown in association with row crops to reduce soil erosion, improve trafficability and suppress weeds. Interference by the living mulch can reduce yields of an associated crop. The interference between a white clover (Trifolium repens L. ‘New Zealand’) living mulch and sweet corn (Zea mays L. ‘Golden Jubilee’) was studied using an established clover sward that was mowed and then sprayed with 1 to 1.5 kg ai/ha of atrazine. Corn was planted at different densities and planting arrangements into a narrow band tilled in the clover. Interference by clover reduced corn yields by 12 to 39%. However, when corn row width was reduced from 0.76 to 0.38 m, competition among corn plants declined; they became more vigorous and clover- suppress ive and reached even higher yields than conventional (no mulch) corn in 0.76 m rows. Similarly, sweet corn planted at a range of densities into a clover mulch killed by atrazine yielded more in equidistant planting than in wide (0.76 m) rows. A near equidistant corn planting arrangement can be a low-input alternative to achieve season-long clover suppression and thus minimize clover's competition with the intercropped corn.


2009 ◽  
Vol 10 (1) ◽  
pp. 9
Author(s):  
Nathan L. Miller ◽  
Cynthia M. Ocamb

Sweet corn (Zea mays L.) yields in the Willamette Valley of Oregon declined during the 1990s. Severe root rot affected some plants shortly before harvest, but was absent in other plants that showed secondary symptoms of reduced ear yield and leaf death; necrosis of stalk nodes and crown tissues was found instead. Studies were done to determine if there is a relationship among yield and necrosis of crowns, stalk nodes, nodal roots, radicles, or sub-crown internodes. An image analysis program was used to quantify the grayscale value of crown and node tissues. Regression analysis indicates that plants with darker crown tissues have lower ear weights. Rots of the nodal roots, radicle, or sub-crown internode were poor predictors of ear weight at harvest. When either Fusarium oxysporum or F. verticillioides were isolated from crowns of commercial sweet corn plants, these crowns had significantly darker grayscale values than those from which neither species was isolated; ear weights were also lower when F. oxysporum was isolated from the crown or a stalk node. Accepted for publication 13 July 2009. Published 31 August 2009.


2019 ◽  
Vol 21 (2) ◽  
pp. 68-74
Author(s):  
Andreas Junico Marulitua Situmorang ◽  
Bandi Hermawan ◽  
Hesti Pujiwati

[IMPACT OF THE TILLAGE SYSTEM AND OIL PALM EMPTY FRUIT BUNCH MULCH ON GROWTH, YIELD OF SWEET CORN (Zea mays saccharata) AND GROUNDWATER SYSTEM].  This study aims to determine the impact of land management and the use of oil palm empty fruit bunches (TKKS) mulch. This research was conducted from August to October 2018, arranged in a split plot design with two factors. As a first factor, land management consists of unprocessed, plowed, and plowed and harrowed. The treatment of oil palm empty fruit bunches mulch as the second factor consisted of no mulch, 9 tonnes/ha of mulch, 12 tonnes/ha of mulch, and 15 tonnes/ha of mulch. Plant variables observed consisted of plant height, stem diameter, number of leaves, fresh plant weight, plant dry, ear weight, ear length, ear diameter. Soil variables observed were the redistribution of groundwater and infiltration. The results showed no significant interaction between the tillage system and the application of oil palm empty fruit bunch mulch on all observed variables. Treatment without tillage or mulch dose of 12 tons/ha can provide growth and yield of sweet corn plants better than other treatments. The highest water content and infiltration rate were obtained from the dosage of oil palm empty bunches mulch 15 tons/ha. Soil cultivation by plowing and harrowing produces the highest infiltration rate compared to lower tillage intensities. About 18% to 42% of the diversity of growth and yield of sweet corn plants have a significant relationship with the diversity of groundwater.


2018 ◽  
Vol 23 (1) ◽  
pp. 27-33
Author(s):  
Rini Susana ◽  
Denah Suswati

Cadmium (Cd) is a heavy metal that can contaminate agricultural soils, in which one of the sources of Cd in agricultural soils is the use of phosphate fertilizers. Some plant species are known to have the ability to accumulate large amounts of Cd in their organs despite the Cd content in soil is relatively small. Cadmium distribution in various organs of plants also shows a diverse variation. Maize is able to accumulate Cd in its organs, either in roots, leaves or grains. This study aims to determine the distribution of Cd in sweet corn plants grown on a peat soil. Samples of maize plants were taken from nine maize fields in the village of Rasau Jaya 1, Rasau Jaya subdistrict, Kubu Raya district, West Kalimantan. The cultivars of sweet corn planted were Zea mays saccharata cultivar Bonanza and Zea mays saccharata cultivar Secada. Samples for roots, leaves, stems and panicles were taken at the stage of early grain filling. Grain samples were taken at the phase of fresh pod consumption. The Cd contents in the plant organ tissues were determined using dry ashing method. The  results showed that the distribution of Cd in plant organs of sweet corn cultivars Secada and Bonanza follows the pattern of Cd in leaves > roots > grains > panicles > stems. The leaves contain the highest concentration of Cd, while the stems contain the lowest amount of Cd. The Cd concentration in leaves is about 3.5 times higher than that in grains, and 1.5 times higher than that in roots. The average Cd content in grains of sweet corn  is 0.037 mg kg-1, which is still below the safe limit of Cd content in grains allowed by the Standar Nasional Indonesia, i.e. 0.2 mg kg-1.   


2020 ◽  
Vol 7 (1) ◽  
pp. 40-52
Author(s):  
Zahlul Ikhsan ◽  
Intan Sari ◽  
Suryadi Suryadi ◽  
Dede Suhendra

This This study aims to determine the best dose of KCl Fertilizer and Liquid Organic Fertilizer of coconut coir on the growth of sweet corn (zea mays saccaharata Sturt) in peat soils. This study used a non factorial randomized block design with 6 treatments and 4 replications. The treatments used were 100 kg KCl fertilizer, POC Coconut Fiber 30 ml / liter, 100 kg KCl + POC coconut coir fertilizer, 75 kg KCl + POC coconut coir fertilizer, 50 kg KCl + POC coconut coir fertilizer, 25 kg KCl + POC fertilizer coconut fiber. The parameters observed were plant height, number of leaves / plants, leaf area index, stem diameter, emergence, male and female flowers, observational data were analyzed using analysis of variance (ANOVA) and continued with HSD tukey test at 5% confidence level. Based on the results of research that has been carried out, all treatments did not show a real effect on all parameters. Provision of coconut milk POC 30 ml / water gives the best results on the growth of sweet corn. Keywords: KCl fertilizer, liquid organic fertilizer, sweet corn


2020 ◽  
Vol 9 (1) ◽  
pp. 54-60
Author(s):  
Johan Adi Saputra

ABSTRACT - To support large-scal e corn exports by the Minister of Agriculture, production is needed. One way is by hybridizing corn plants to produce new corn plants with high production. This study aims to determine the results of crosses between sweet corn and sticky corn. Reinforcement Sidoarjo with a height of sea level ± 7m in May to August 2018. This research was carried out descriptively with 2 types of crosses of sweet corn as female parent and glutinous corn as male parent (TK) and glutinous corn as female parent and sweet corn a s male parent (KT), which is repeated 4 times then continued with unpaired T Test and the usual percentage to determine the difference between TK and K The variables observed were ear weight, seed color, seed shape, and dry weight per 100 seeds. The resu lts showed that crosses gave rise to 3 color variants namely white, yellowish white and yellow. With a color ratio of 3: 1 in the TK treatment and 1: 3 in the KT treatment. Crosses of sweet corn and sticky corn also produced 2 different forms of corn, namely wrinkles and solid forms with a total percentage of 16,625% in the form of wrinkles and 83,375% in round shape.    


HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 524D-524
Author(s):  
V.M. Russo ◽  
T. Smith

Sweet corn (Zea mays L.) kernels are sinks, and sugars found in kernels must be translocated from a source. Stalk tissues can act as a source and a sink as sweet corn plants age. Quantity and types of sugars present in various sweet corn tissues during plant development are not well documented. Concentrations of fructose, glucose, sucrose, and their total were determined in the ninth stalk internodes (I9) from the 12-leaf stage (V12) to fresh-market maturity (R3) in sweet corn cultivars carrying either the su1se1, su1, or sh2 endosperm genotype. Developing ears were sampled at tassel emergence (VN) and silking (R1). Kernels and cob tissue were sampled separately at blister stage (R2) and R3. Correlation analysis was performed on concentrations of sugars at all developmental stages. In I9, from V12 to R3, levels of fructose and glucose declined and sucrose increased. In developing ears, concentrations of fructose and glucose increased from VN to R1. Concentrations of sugars in cobs in all cultivars were generally the same at R2 and R3. In kernels from R2 to R3 in the su1se1 cultivar, glucose decreased while the other sugars were unchanged; in the su1 cultivar, fructose decreased while levels of the other sugars stayed the same; and in the sh2 cultivar, fructose decreased, glucose was unchanged and sucrose increased. Correlation analysis suggested that the cultivars moved sugars to the kernels differently. The pattern of movement of sugars to kernels was most complex in the su1se1 cultivar than in the su1, which was more comlex than in the sh2 cultivar. Knowing how sugar content changes in the plant may be used to predict sugar content in kernels.


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