scholarly journals The Feasibility of Organic Nutrient Management in Large-scale Sweet Corn Production for Processing

2012 ◽  
Vol 22 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Heidi J. Johnson ◽  
Jed B. Colquhoun ◽  
Alvin J. Bussan

There is significant interest from vegetable processors, growers, and consumers in organic sweet corn (Zea mays) production. Organic nitrogen (N) management is particularly challenging in high N consuming crops such as sweet corn because of the low N content and low N to phosphorus (P) ratios of organic soil amendments. Various management programs were compared to determine the optimal combination of soil amendments and green manure crops for organic sweet corn production. Alfalfa (Medicago sativa), rye (Secale cereale), and field pea (Pisum sativum) were used as green manure crops. Composted poultry manure and a high N content organic fertilizer were used as organic amendments. Ammonium nitrate was used in a conventional management program for comparison. Treatments were designed to deliver a full rate of N (150 lb/acre), a half rate of N (75 lb/acre), and to limit the amount of P applied. Phosphorus can become a source of pollution when applied to erodible soils, particularly when soils already contain excessive P. Sweet corn yield in many of the organic programs was highly variable among years while the yield was more consistent in the conventional program. This was attributed to differences in organic N mineralization in both the green manure crops and the amendments. The most stable yield from an organic treatment, among years, was achieved using the commercially available organic N fertilizer. Commercially available amendments were costly, and although organic sweet corn received a premium price in years when organic yields were lower, profit was reduced by the high cost of N management.

Kultivasi ◽  
2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Rommy Andhika Laksono ◽  
Nurcahyo Widyodaru Saputro ◽  
Muhammad Syafi’i

Abstract. Sweet corn production in Indonesia can be increased by intensification program, such as the use of superior cultivars, the use of balanced fertilizer, and the use of organic fertilizer. Objective of the research was to study Integrated Crop Management System, that related to use of fermented organic fertilizer (bokashi) which suitable to sweet corn crop, especially in lowland area of Karawang district. The method of research was experiment. The experimental design was Randomized Block Design, that consisted of 16 treatments and 3 replications. The treatments were 4 bokashi dosage (0, 5, 10 and 15 ton ha-1) combined with 4 varieties of F1 sweet corn (Bonanza, Talenta , Secada and Sweet Boy). The data were analyzed using analysis of variance and Duncan multiple-range test at 5%. The results show that bokashi dosage had given difference on plant height, number of leaves per plant, diameter of the stem, weight of ears, number of grain rows, and yield. Dosages of 10 tons ha-1 bokashi gave the best growth and sweet corn yield of Sweet Boy F1 varieties on Integrated Crop Management System. Keywords: Sweet Corn, Bokashi, CMS. Sari. Produksi jagung manis di Indonesia dapat ditingkatkan dengan program intensifikasi, diantaranya dengan penggunaan kultivar unggul, pupuk berimbang, dan pupuk organik. Tujuan penelitian ini adalah untuk mempelajari sistem pengelolaan tanaman terpadu, yang berhubungan dengan penggunaan pupuk orga-nik bokashi yang cocok pada tanaman jagung manis, khususnya di dataran rendah Karawang. Metode penelitian ini menggunakan percobaan. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok, terdiri dari 16 perlakuan dan 3 ulangan. Perlakuan terdiri dari 4 dosis bokashi (0, 5, 10 dan 15 ton ha-1)  yang dikombinasikan dengan 4 varietas jagung manis F1(Bonanza, Talenta , Secada dan Sweet Boy). Data dianalisis menggunakan analisis varians dan uji jarak berganda Duncan pada taraf 5%. Hasil menunjukkan perlakuan dosis bokashi memberikan perbedaan pada tinggi tanaman, jumlah daun, diameter batang, berat tongkol, jumlah baris biji, dan hasil. Dosis bokashi 10 ton ha-1 memberikan pertumbuhan dan hasil terbaik jagung manis varietas Sweet Boy pada sistem Pengelolaan Tanaman Terpadu. Kata kunci: Jagung Manis, Bokashi, Pengelolaan Tanaman Terpadu


2012 ◽  
Vol 22 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Heidi J. Johnson ◽  
Jed B. Colquhoun ◽  
Alvin J. Bussan ◽  
Carrie A.M. Laboski

Organic sweet corn (Zea mays) production is challenging for growers because of the high nitrogen (N) requirements of sweet corn and the relatively low N content of organic soil amendments. Total N supplied and rate of mineralization throughout the growing season are two important aspects in determining the optimal N management program. Green manure (GrM) crops, composted manures, and commercially available organic fertilizers are used to manage N in organic production systems. Using a combination of these tactics can optimize N while minimizing cost. In this study, we used combinations of composted poultry manure (CPM) and two organic fertilizers (one high N and one with a balance of nutrients) with three GrM crops [rye (Secale cereale), alfalfa (Medicago sativa), and pea (Pisum sativum)] in a loamy sand soil for a 112-day laboratory incubation study. Total plant available N (PAN) was quantified at six times throughout the 16 weeks to determine total N mineralized and rate of N release from each of the management programs. The CPM and the high N organic fertilizer mineralized completely within the first 6 weeks of the study, while only 65% of the other organic fertilizer mineralized by the end of the study. Total N mineralized from pea grown as a GrM for 48 days was comparable to the amount of N mineralized from rye suggesting that pea as a GrM crop should not receive an N credit in field production on a sandy soil. Significant quantities of PAN were mineralized from alfalfa residue, the equivalent of 80 lb/acre, although this is not sufficient for sweet corn production. The combination of alfalfa and the high N organic fertilizer provided sufficient N for sweet corn production and the mineralization rate closely matched sweet corn need. The release of N from CPM, even in combination with GrM crops, was asynchronous with sweet corn crop need.


Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1945
Author(s):  
Tiare Silvasy ◽  
Amjad A. Ahmad ◽  
Koon-Hui Wang ◽  
Theodore J. K. Radovich

Using local resources and minimizing environmental impacts are two important components of sustainable agriculture. Meat and bone meal (MBM), tankage, is a locally produced organic fertilizer. This study was conducted to investigate the response of sweet corn (Zea mays L. var. saccharata Stuart.) and soil water nitrate (NO3-N) concentration to MBM application at two locations, Waimānalo and Poamoho, on the island of O’ahu. The objectives were to determine effects of six application rates (0, 112, 224, 336, 448 and 672 kg N ha−1) and two application timings (preplant and split application) on: (1) sweet corn growth, yield, and quality, and (2) soil water nitrate concentration within and below the root zone. The split-plot was designed as four replicates randomly arranged in a complete block. Plant growth of roots and shoots, yield, and relative leaf chlorophyll content of sweet corn increased with increasing application rates of MBM in both locations. At Poamoho, yield was 13.6% greater in preplant versus split application. Nitrate-nitrogen losses were reduced by 20% at Waimānalo and 40% at Poamoho when MBM was applied in split applications. These findings suggest that MBM is an effective nitrogen source for sweet corn and a split application of MBM may reduce the potential for pollution.


2020 ◽  
Vol 63 (3) ◽  
pp. 731-740
Author(s):  
Dagbegnon Clement Sohoulande Djebou ◽  
Liwang Ma ◽  
Ariel A. Szogi ◽  
Gilbert C. Sigua ◽  
Kenneth C. Stone ◽  
...  

Highlights This study addressed the inclusion of field-scale soil variability in nitrogen (N) management for corn production. RZWQM2 was calibrated for corn yield and N dynamics on four sandy soil series under supplemental irrigation. Multi-year simulations of corn production under high and low N application rates were analyzed. Results showed room to reduce N use and N leaching without affecting corn production on Coastal Plain sandy soils. Abstract. Nitrogen (N) fertilization contributes significantly to maintain high yields in corn (Zea mays L.) production. In the Southeastern Coastal Plain of the U.S. where soils are sandy with poor water and nutrient holding capacity, a fraction of the N applied to corn fields is often leached from the root zone and becomes unavailable to plants. As these soils belong to various taxonomic classes, research has shown significant corn yield differences among soil series. However, few studies have focused on integrating field-scale soil variability, N leaching, and corn production. To address this knowledge gap, this study used the Root Zone Water Quality Model (RZWQM2) to simulate different N management scenarios in corn production for four sandy soil series under supplemental irrigation. The calibrated model was used to simulate nine consecutive years of corn production under four N management scenarios, including two high rates of N application (rate A = 224 kg N ha-1 with 25 kg N ha-1 at preplant; rate A' = 224 kg N ha-1 without preplant N), and two low rates of N application (rate B = 157 kg N ha-1 with 25 kg N ha-1 at preplant; rate B' = 157 kg N ha-1 without preplant N). Simulation results showed that without preplant N application, N leaching was reduced by up to 17% with no significant impact on corn yield, depending on the soil series. Hence, consideration of field-scale soil variability could help improve N management by reducing N use and N leaching without impacting corn production. Keywords: Corn yield components, Growing season, Modeling, Nitrogen dynamics, RZWQM2, Soil variability.


2010 ◽  
Vol 22 (2) ◽  
pp. 15-23
Author(s):  
Robert Rosa ◽  
Anna Zaniewicz-Bajkowska ◽  
Edyta Kosterna ◽  
Jolanta Franczuk

Abstract A field experiment was carried out in central-eastern Poland (52°06’N, 22°55’E) to investigate the effect of a sunflower catch crop used as green manure sown on three different dates (21st July, 4th and 18th August) on sweet corn yield and growth. The ‘Challenger F1’ and ‘Sweet Wonder F1’ corn cultivars were cultivated in the first year following organic fertilization. Sunflower was plowed in the third week of October. The effect of the catch crop’s green manure was compared to farmyard manure applied at a dose of 40 t ha-1 as well as a control without organic manuring. The biomass quantity and the amount of macroelements absorbed with the sunflower catch crop sown on the 21st of July was similar to the quantity absorbed with farmyard manure applied at a rate of 40 t ha-1. The quantity of organic mass and macroelements absorbed with the sunflower sown on the 4th of August was smaller by 20%, and by 50% for the 18th of August set, compared with the corn treated with farmyard manure. The effects of farmyard manure and sunflower catch crop sown on the 21st of July on the yield were similar. The marketable yield of cobs of corn plants cultivated following farmyard manure treatment and catch crop sown on the 21st of July amounted to 12.6 and 12.4 t ha-1, respectively. An application of sunflower sown as a green manure on the 2nd and 3rd date prior to corn cultivation decreased marketable cob yields by 8% and 25% as compared to the farmyard manure. The corn cobs cultivated following the sunflower sown on the 21st of July and treated with farmyard manure had the greatest mass. The corn cobs cultivated with farmyard manure were characterized by the highest biological productivity (72.1%); similar was the cob production of corn cultivated with catch crops sown on the 21st of July and the 4th of August. The ‘Challenger F1’ and ‘Sweet Wonder F1’ yields were similar. ‘Challenger F1’ produced cobs with higher mass whereas ‘Sweet Wonder F1’ produced cobs characterized by greater biological productivity.


2017 ◽  
Author(s):  
Zainal Muktamar ◽  
Sigit Sudjatmiko ◽  
Mohammad Chozin ◽  
Nanik Setyowati ◽  
Fahrurrozi Fahrurrozi

Solid organic fertilization in organic farming practices should be supplemented with liquid organic fertilizer to accelerate the availability of plant nutrients. The study aimed to determine performance and major nutrient uptake by sweet corn following application of vermicompost supplemented with liquid organic fertilizer (LOF) and to find out combined vermicompost and liquid organic fertilizer for sweet corn production. The experiment was conducted at CAPS Research Station (1054 m above sea level) from April to June 2016, arranged in split plot design with 5 rates of vermicompost as the main plot and 5 rates of LOF as the subplot. Rates of vermicompost comprised 5, 10, 15, 20, and 25 Mg ha-1, while LOF rates consisted of control, 25, 50, 75, and 100% (initial concentration). Treatment combination was replicated 3 times. Root application of LOF was carried out every week at 2-8 weeks after planting (WAP) with total volume of 950 ml plant -1. Result pointed out that vermicompost pronouncedly raised nitrogen (N), phosphorus (P) and potassium (K) uptakes and linearly enhanced growth and yield of sweet corn, indicated by plant height, plant leaf area, shoot fresh and dry weight, weight of husked and unhusked ears, diameter of ear, and weight of husked ear per plot but length of ear. The addition of LOF had a similar effect on major nutrient uptake, growth, and yield of sweet corn. Vermicompost at the rate of 25 Mg ha-1 supplemented with 100% LOF provided greatest growth and yield, suggesting that the fertilizer combination was the most effective complementary organic fertilization for sweet corn production in the organic farming system.


AgriPeat ◽  
2019 ◽  
Vol 20 (01) ◽  
pp. 45-54
Author(s):  
Admin Journal

ABSTRACTThis study aims to examine the response of sweet corn plants which were given organic fertilizer and Arbuscular Mycorrhizal Fungus (CMA) and determine the dose of organic waste that can be used for composting based on the best dose of sweet corn yield per hectare. This experiments using Randomized Block Design arranged in a Factorial pattern with three levels compost dosage ( 0, 15 and 30 t ha-1), and five levels of CMA (0, 600, 900, 1200 and 1500 kg ha-1). The results showed that compost fertilizer was 30 t ha-1 and arbuskula mycorrhizal fungus 1200 kg ha-1 gave significantly better results on plant height growth (174.80 cm), shoot/root ratio (8,368), N (2 , 66%) and P (328.88 ppm) concentration in plant tissue, length of sweet corn cobs (19.90 cm), diamater sweet corn cobs (5.04 cm) and sweet corn cobs weight (217.28 g). The amount of organic waste that can be used to make compost based on the best results is 571.43 kw ha-1Kata kunci : sweet corn, organic waste, CMA, peat landABSTRAKPenelitian ini bertujuan untuk menelaah respon tanaman jagung manis yang diberi pupuk organik dan Cendawan Mikoriza Arbuskula (CMA) dan menentukan dosis sampah organik yang dapat dimanfaatkan untuk pembuatan kompos berdasarkan dosis terbaik hasil jagung manis per hektar. Percobaan ini menggunakan Rancangan Acak Kelompok Faktorial dengan tiga taraf dosis pupuk kompos 0, 15 dan 30 t ha-1, lima taraf CMA (0, 600, 900, 1200 dan 1500 kg ha-1). Hasil penelitian diperoleh bahwa pemberian pupuk kompos 30 t ha-1 dan cendawan mikoriza arbuskula 1200 kg ha-1 memberikan hasil yang nyata lebih baik terhadap pertumbuhan tinggi tanaman (174,80 cm), nisbah pupus akar (8,368), konsentrasi unsur N (2,66%) dan P (328,88 ppm) dalam jaringan tanaman, panjang tongkol (19,90 cm), diameter tongkol (5.04 cm) serta bobot tongkol (217,28 g). Jumlah sampah organik yang dapat dimanfaatkan untuk pembuatan pupuk kompos berdasarkan hasil terbaik yaitu 57,14 t ha-1Kata kunci : jagung manis, sampah organik, CMA, gambut


HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 491b-491
Author(s):  
James E. Brown ◽  
Daniel W. Porch ◽  
Ronald L. Shumack ◽  
Charles H. Gilliam ◽  
Larry Curtis

In sweet corn field plots in Alabama, urea-ammonia nitrogen was applied to the soil through underground and aboveground drip fertigation systems. Dry nitrogen in the form of ammonium nitrate was surface band-applied as a control. Nitrogen rates of 67 kg/ha and 135 kg/ha were applied in either 2 or 4 applications by each of the 3 methods. P and K fertilizers were applied to all treatments in a dry form according to soil test recommendations. The underground drip pipe was placed 23 cm beneath the soil surface in each row. Nitrogen (wet or dry) rate of 135 kg/ha produced greater sweet corn yield than the 67 kg/ha rate with no effect of application number on yield in 1988, when rainfall was less than adequate. In 1987 and 1989, when rainfall was adequate, no differences occurred in yields regardless of number, rate, or method of application of nitrogen.


EUGENIA ◽  
2018 ◽  
Vol 23 (3) ◽  
Author(s):  
P. Tumewu ◽  
M. Montolalu ◽  
A. G. Tulungen

ABSTRACT The aim of this research is to know the effect of organic fertilizer formulation and NPK Phonska fertilizer on the growth and yield of sweet corn, and to get organic fertilizer formulation for the efficiency of inorganic fertilizer NPK Phonska in increasing the yield of sweet corn. The factorial experiment was designed using a Randomized Block Design consisting of two factors. Factor I (A) = Formulation of Organic Fertilizer, consisting of A1 = Water hyacinth, Cow Manure, chicken manure, A2 = Hydrilla verticillata, cow dung, chicken manure, A3 = Kirinyuh, cow dung, chicken manure. Factor II (B) = Phonska fertilizer, Consist of B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100% Phonska. Each treatment was repeated three times to obtain 36 experimental plots. Response variables observed included: Plant dry weight, Length of cob, Cob diameter, Weight of cob, measured at harvest. Data were analyzed using variance analysis and if there was effect of treatment continued by using Test of Honest Real Difference (BNJ) at 5% test level. The results showed that the interaction between organic fertilizer formulation and NPK phonska significantly affect the diameter of cob and sweet corn cob weight. The dry weight of sweet corn plant is influenced by organic fertilizer formulation. Formulation of organic fertilizer Hydrilla verticillata + cow dung + chicken dung 20 ton / ha dose able to reduce the dose of NPK Phonska at half of the recommended dosage.Keywords: formulation of organic fertilizer, sweet corn yield, Phonska  ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh interaksi formulasi pupuk organik dan pupuk NPK Phonska terhadap pertumbuhan dan hasil jagung manis, serta mendapatkan formulasi pupuk organik untuk efisiensi pupuk anorganik NPK Phonska dalam meningkatkan hasil jagung manis. Percobaan factorial  dirancang menggunakan Rancangan Acak Kelompok yang terdiri dari dua faktor. Faktor I (A) = Formulasi Pupuk Organik, terdiri dari A1 = Eceng gondok, Kotoran sapi, kotoran ayam, A2 = Hydrilla verticillata, kotoran sapi, kotoran ayam, A3 = Kirinyuh, kotoran sapi, kotoran ayam. Faktor II(B) =  Pupuk Phonska, Terdiri dari B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100 % Phonska. Setiap perlakuan diulang tiga kali sehingga diperoleh 36 petak percobaan. Variabel respons yang diamati  meliputi : Berat kering tanaman, Panjang tongkol, Diameter tongkol, Bobot tongkol, diukur pada saat panen. Data  dianalisis menggunakan  analisis ragam dan jika terdapat pengaruh perlakuan dilanjutkan dengan menggunakan Uji Beda Nyata Jujur (BNJ) pada taraf uji 5 %. Hasil penelitian  menunjukkan bahwaInteraksi antara formulasi pupuk organik dan NPK phonska berpengaruh nyata terhadap diameter tongkol dan  bobot tongkol jagung manis. Bobot kering tanaman jagung manis dipengaruhi oleh  formulasi pupuk organik.  Formulasi pupuk organik Hydrilla verticillata+ kotoran sapi+kotoran ayam dosis 20 ton/ha mampu menurunkan dosis NPK Phonska setengah dari dosis rekomendasi.Kata kunci: formulasi pupuk organik, hasil jagung manis, Phonska


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