PENGARUH PEMBERIAN BAHAN HUMAT DARI EKSTRAK BATUBARA MUDA (Subbituminus) DAN PUPUK P TERHADAP SIFAT KIMIA ULTISOL SERTA PRODUKSI TANAMAN JAGUNG (Zea mays L.)

The purpose of this research is to study interaction of humic substances extracted from subbituminus coal with P fertilizer on the chemical properties of Ultisol and crop production of corn (Zea mays L.). The experiment was designed in completely randomized design having 2 factors (4 x 4) with 3 replications. The first factor was dose of humic substances (A) which consists of 4 levels (A1 = 0 ppm, A2 = 400 ppm, A3 = 800 ppm, and A4 = 1200 ppm). The second factor was level of fertilizer P (B) (B1 = 100% recommendation, B2 = 75% recommendation, B3 = 50% recommendation, and B4 = 25%). The result showed that : 1) There is no interaction between humic substances and P fertilizer on the chemical nature of Ultisol and crop production of corn (Zea mays L.) 2) Use of humic substance for 800 ppm with some level of P fertilizer could improve some chemical properties of Ultisol such as decreased in content of Al-exch by 0,38 me/100 g soil, increased in P-available by 22,16 ppm, CEC by 8,42 me/100 g soil and P nutrient by 0,10 %, as well as corn yield by 25,67 g/pot compared to soil without humic substances 3) The use of SP-36 for 50 % with some level of humic substances increased in plant height by 26,58 cm, P nutrient by 0,11 %, and the use of 75 % SP-36 increased corn yield by 5,84 g/pot compared to 25% of P recommended.Keywords : humic subtances, subbituminus coal, P fertilizer.

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PENGUNAAN ENDAPAN AIR GAMBUT SEBAGAI AMELIORAN ALTERNATIF TERHADAP BEBERAPA SIFAT KIMIA ULTISOL DAN HASIL TANAMAN JAGUNG SEMI (Zea mays L )

Jurnal Solum ◽

10.25077/js.5.2.66-77.2008 ◽

2008 ◽

Vol 5 (2) ◽

pp. 66

Author(s):

Teguh Budi Prasetyo ◽

Husnita Husnita ◽

Irwan Darfis

Keyword(s):

Zea Mays L ◽

Chemical Properties ◽

Optimal Level ◽

P Uptake ◽

Low Fertility ◽

Corn Yield ◽

Soil P ◽

P Concentration ◽

Randomized Design ◽

Exchangeable Al

The main problems of Ultisols are high Al concentration, low pH, low cation exchangeable capacity (CEC), and low fertility. The objectives of this reasearch were to study the effect of peat water deposit to some chemical properties of Ultisols and to determine the optimal level of peat water deposit for optimum corn yield. The experimental design was the complete randomized design that consisted of 5 levels of peat water deposit (0, 800, 1600, 2400, and 3200 kg/ha). The results showed that the application of peat water deposit could reduce exchangeable Al, increase CEC and soil P concentration, P-uptake, and corn yield. The highest corn yield was obtained at application of 3200 kg peat water deposit /ha.Key Words : Ultisols, peat water precipitation, soil chemical characteristics, corn

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Ketersediaan Fosfat, Serapan Fosfat, Dan Hasil Tanaman Jagung (Zea mays L.) Akibat Pemberian Kompos Granul Ela Sagu Dengan Pupuk Fosfat Pada Inceptisols

Agrologia ◽

10.30598/a.v7i1.356 ◽

2018 ◽

Vol 7 (1) ◽

Author(s):

Maimuna La Habi ◽

Jeanne Ivone Nendissa ◽

Dessy Marasabessy ◽

A. Marthin Kalay

Keyword(s):

Zea Mays L ◽

Experimental Treatment ◽

Dry Weight ◽

Phosphate Fertilizer ◽

P Uptake ◽

Corn Yield ◽

Phosphate Fertilizers ◽

Soil P ◽

Randomized Design ◽

P Fertilizer

Inceptisol is a young and newly developed soil so it needs to be optimized for crop cultivation. The aim of this research is to know the availability of soil P, P uptake and corn yield after application of granular composting of sago waste (KGES) together with phosphate fertilizer to Inceptisols soil. The experimental treatment was KGES which consisted of three levels: without KGES, 40 tons KGES ha-1, and 80 tons KGES ha-1, and the use of SP-36 (P) fertilizer consisting of three levels: without P fertilizer, 120 kg P ha-1, and 240 kg P ha-1. The experiment used a complete randomized design with 3 replications. The result of the experiment was analyzed variance and relationship test using interlaced analysis. The results showed that KGES together with phosphate fertilizers could increase soil pH causing phosphate to be available and plant roots could absorb nutrient phosphate well, so that the yield of corn kiln dry weight also increased. The highest yield of dry weight of grains (7.85 tons per ha) was obtained from a combination of 80 tons of KGES ha-1 and 240 kg P ha-1.Keyword: Keywords: Ella Sago, Inseptisols, maize, phosphate

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Respon Pertumbuhan tanaman jagung (Zea Mays L.) pada Berbagai Warna Sungkup Plastik

Agrotek ◽

10.30862/agt.v2i4.495 ◽

2018 ◽

Vol 2 (4) ◽

Author(s):

Syukur Karamang

Keyword(s):

Zea Mays ◽

Light Intensity ◽

Chlorophyll A ◽

Zea Mays L ◽

Chlorophyll B ◽

Corn Plant ◽

Randomized Design ◽

Completely Randomized Design ◽

Research Show ◽

Better Than

This research was aimed at understanding the corn plant using plastic covers. The above mentioned plant was grown in plastic covers that have colours (transparent, red, green, and blue) and without plastic covers. This research was carried out in the Faculty of Agriculture, IPB from the month of May to June 2008. It was implemented using the Completely Randomized Design with three repetitions. The results of the research show that light intensity was higher in the plant that was not enclosed in the plastic covers. Generally, the research shows that the corn plant that was in the plastic covers is better than that one without plastic covers. The use of a plastic cover helps increases the height of the corn plant and the leaves. Chlorophyll a and Chlorophyll b are higher in the corn plant that was not in the plastic covers. The results of the research also indicate that transparent and red plastic covers have better responses compared to plastic covers with blue and green colors.

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Effects of Lime, Vermicompost, and Chemical P Fertilizer on Selected Properties of Acid Soils of Ebantu District, Western Highlands of Ethiopia

Applied and Environmental Soil Science ◽

10.1155/2018/8178305 ◽

2018 ◽

Vol 2018 ◽

pp. 1-13 ◽

Cited By ~ 4

Author(s):

Abdissa Bekele ◽

Kibebew Kibret ◽

Bobe Bedadi ◽

Markku Yli-Halla ◽

Tesfaye Balemi

Keyword(s):

Crop Production ◽

Soil Acidity ◽

Chemical Properties ◽

Acid Soils ◽

Exchangeable Acidity ◽

Combined Application ◽

Randomized Design ◽

Exchangeable Ca ◽

P Fertilizer ◽

Major Factors

Soil acidity is one of the major factors limiting soil fertility and crop production in large areas of Ethiopia. A two-month incubation experiment was conducted to evaluate the effects of lime, vermicompost (VC), and chemical phosphorus (P) fertilizer on selected chemical properties of Dystric Nitisols in Ebantu District, Western Ethiopia. The treatments comprised of three rates of lime (2, 4, and 6 tons CaCO3·ha−1), VC (2.5, 5, and 7.5 tons·ha−1), and mineral P fertilizer (20, 40, and 60 kg·P·ha−1) each applied alone and in various combinations. The experiment was laid down in a completely randomized design with two replications. The results showed that the highest increment of pH from 4.83 at the control to 6.05 and reduction of exchangeable Al from 1.70 to 0.09 cmolc·kg−1 were obtained from combined application of lime at 4 tons CaCO3·ha−1 and VC at 7.5 tons·ha−1. The most significant decrease in exchangeable acidity (0.17 cmolc.kg-1) was observed in soil that was treated with 6 tons CaCO3·ha−1 lime applied alone (93%) and combined application of lime at 4 tons CaCO3·ha−1 with VC at 7.5 tons·ha−1 by (81%). The highest contents of OM (4.1%) and total nitrogen (0.29%) were obtained from combined application of lime at 4 tons CaCO3·ha−1 and VC at 7.5 tons·ha−1. Integrated application of chemical P (60 kg·P·ha−1) with lime (2 tons·ha−1) plus VC (7.5 tons·ha−1) resulted in Bray-II P increased by 45% relative to control. The various combinations of the treatments also improved exchangeable Ca2+ and Mg2+. The results indicate that integrated use of lime, vermicompost, and chemical P fertilizer can improve soil acidity and availability of nutrients. However, the real potential of the amendments used in this experiment should be further assessed under field conditions using a test crop.

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Spent Mushroom Waste as a Media Replacement for Peat Moss in Kai-Lan (Brassica oleraceavar. Alboglabra) Production

The Scientific World JOURNAL ◽

10.1155/2013/258562 ◽

2013 ◽

Vol 2013 ◽

pp. 1-8 ◽

Cited By ~ 15

Author(s):

H. Sendi ◽

M. T. M. Mohamed ◽

M. P. Anwar ◽

H. M. Saud

Keyword(s):

Crop Production ◽

Chemical Properties ◽

Normal Growth ◽

Nutrient Content ◽

Peat Moss ◽

Growth Media ◽

Potted Plants ◽

Randomized Design ◽

Media Component ◽

Completely Randomized Design

Peat moss (PM) is the most widely used growing substrate for the pot culture. Due to diminishing availability and increasing price of PM, researchers are looking for viable alternatives for peat as a growth media component for potted plants. A pot study was conducted with a view to investigate the possibility of using spent mushroom waste (SMW) for Kai-lan (Brassica oleraceavar. Alboglabra) production replacing peat moss (PM) in growth media. The treatments evaluated were 100% PM (control), 100% SMW, and mixtures of SMW and PM in different ratios like 1 : 1, 1 : 2, and 2 : 1 (v/v) with/without NPK amendment. The experiment was arranged in a completely randomized design with five replications per treatment. Chemical properties like pH and salinity level (EC) of SMW were within the acceptable range of crop production but, nutrient content, especially nitrogen content was not enough to provide sufficient nutrition to plant for normal growth. Only PM (100%) and SMW and PM mixture in 1 : 1 ratio with NPK amendment performed equally in terms of Kai-lan growth. This study confirms the feasibility of replacing PM by SMW up to a maximum of 50% in the growth media and suggests that NPK supplementation from inorganic sources is to ensure a higher productivity of Kai-lan.

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Karakteristik Kimiawi Kompos Enceng Gondok dan Jerami Hasil Dekomposisi Dengan Aktivator Alami dan Buatan

Planta Tropika Journal of Agro Science ◽

10.18196/pt.v1i1.3109 ◽

2021 ◽

Vol 1 (1) ◽

pp. 29-33

Author(s):

Nike Triwahyuningsih

Keyword(s):

Humic Substances ◽

Chemical Properties ◽

Research Field ◽

Available P ◽

Organic N ◽

Available Phosphorus ◽

Cow Manure ◽

Organic Matters ◽

Randomized Design ◽

Completely Randomized Design

A research to study the chemical properties of hyacinth- and straw-compost decomposed by natural and artificial activators was conducted at the Research Field of Faculty of Agriculture, Muhammadiyah University of Yogyakarta. Cow manure was used as natural activator, while Stardec (powdered) and EM4 (liquid) as artificial ones. The treatment was arranged in 2x3 factorial completely randomized design. The hyacinth and straw organic sources were decomposed by cow manure, Stardec and EM4 activators. Organic matters were incubated for 5-6 weeks then pH, C-organic, N-total, available P and K, CEC, and the .exchngeable Ca, K and Mg were measured. The results showed that the hyacinth-compost had the better maturity according to the C/N ratio (C/N20) than the straw-compost (C/N20), but the two kinds of compost had the moderate mature rate of humic substances. The straw-compost had better quality though as shown in its higher available phosphorus and excheangable potassium, especially when decomposed by EM4 artificial activator. Application of artificial activators Stardec and EM4 enhanced the maturity rate of hyacinth-compost.

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Effect of Vermicompost Dose to K Content in Leaves and Growth of Corn (Zea mays, L) on Ultisol

TERRA Journal of Land Restoration ◽

10.31186/terra.3.2.45-50 ◽

2020 ◽

Vol 3 (2) ◽

pp. 45-50

Author(s):

Nunung Nurjanah ◽

Riwandi Riwandi ◽

Hasanudin Hasanudin

Keyword(s):

Zea Mays ◽

Plant Height ◽

Zea Mays L ◽

Dry Weight ◽

Soil Science ◽

Optimum Dose ◽

Single Factor ◽

K Uptake ◽

Randomized Design ◽

Completely Randomized Design

The objectives of this research were to obtain an optimum dose of vermicompost fertilizer to the nutrient levels of K in the leaves, K uptake, and corn growth in ultisols. This research were held in September until November 2018, which has been implemented in green house and the Laboratory of Soil Science, Faculty of Agriculture, University of Bengkulu. The research used Completely Randomized Design (CRD) with a single factor consisting of 7 levels of treatment and three replicates i.e. 0 , 2.5 , 5.0 , 7.5 , 10.0, 12.5, and 15.0 ton ha-1. The results showed that the optimum dose of vermicompost fertilizer 5.71 ton ha-1, resulting in leave K content of 0.59%, 9.5 ton vermicompost ha-1, producing the absorption of K leaves 31 kg ha-1, 9.59 ton vermicompost ha-1, producing a plant height 160.7 cm, 10.2 ton vermicompost ha-1, producing the fresh stover weight 27,561.2 kg ha-1, 98.9 ton vermicompost ha-1, producing the dry stover weight 5,675.5 kg ha-1, and 9.5 tons vermicompost ha-1, producing root dry weight 1,156 kg ha-1.

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Pengaruh Ekstrak Daun Tumbuhan Mikania micrantha Kunth. (Invasif) dan Cosmos sulphureus Cav. (Non Invasif) Terhadap Perkecambahan Jagung (Zea mays L.)

JURNAL BIOLOGI UNAND ◽

10.25077/jbioua.6.2.79-83.2018 ◽

2018 ◽

Vol 6 (2) ◽

pp. 79

Author(s):

Ayu Utami Rezki ◽

Suwirmen Suwirmen ◽

Zozy Aneloi Noli

Keyword(s):

Zea Mays ◽

Leaf Extract ◽

Invasive Plant ◽

Zea Mays L ◽

Plant Leaves ◽

Fresh Weight ◽

Mikania Micrantha ◽

Non Invasive ◽

Randomized Design ◽

Completely Randomized Design

The Research about the effects of extract from the invasive plant leaves of Mikania micrantha Kunth. and non-invasive plant leaves of Cosmos sulphureus Cav. on the germination of corn (Zea mays L.) has been conducted in July 2016 in Plant Physiology and Tissue Culture Laboratory, Biology Department, Mathematics and Natural Science Faculty, Andalas University, Padang. The aim of this research was to compare the effect of extract from the leaves of plants M. micrantha and C. sulphureus with several concentrations on the germination of corn. The research used experimental method with Completely Randomized Design (CRD) on Nested, 9 treatments and 4 replications. The treatments were factor A (type of plants, a1= Mikania micrantha and a2= Cosmos sulphureus) and factor B (leaf extract concentration, b0= 0%, b1= 20%, b= 40%, b3= 60%, b4= 80%). The results showed that the extract of the leaves from M. micrantha affected to reduced the fresh weight plants at concentration of 20%, where as in leaf extract of C. sulphureus affected to reduced the fresh weight plants at concentration of 40%.

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PENGARUH WAKTU PERKECAMBAHAN TERHADAP TOTAL FENOL, KAROTEN DAN AKTIVITAS ANTIOKSIDAN TEPUNG KECAMBAH JAGUNG (Zea mays L.)

Jurnal Ilmu dan Teknologi Pangan (ITEPA) ◽

10.24843/itepa.2020.v09.i03.p06 ◽

2020 ◽

Vol 9 (3) ◽

pp. 301

Author(s):

Ni Nyoman Triana Ardi ◽

Ni Wayan Wisaniyasa ◽

Ni Made Yusa

Keyword(s):

Antioxidant Activity ◽

Zea Mays ◽

Enzyme Activity ◽

Research Design ◽

Zea Mays L ◽

Total Phenol ◽

Germination Time ◽

Randomized Design ◽

Completely Randomized Design ◽

Scientific Name

Zea mays L. is the scientific name for corn which is containing antioxidants such as carotene. Germination of corn can improve nutrition from food due to enzyme activity. This study aims to determine the effect of germination time on total phenol, carotene and antioxidant activity in corn sprouts flour. In this study, the research design used is Completely Randomized Design with five of germination time such as 24, 30, 36, 42 and 48 hours with each treatment was repeated three times. The corn sprouts obtained were then tested for total phenol, carotene and antioxidant activity. The result showed that germination time had a significant effect on total phenol, carotene and antioxidant activity (IC50 and ?-carotene bleaching). The best germination time obtained is 48 hours that had a total phenol level of 11.35 mg/100g, a total carotene level of 1.38 mg/100g, an antioxidant activity (IC50) of 1.32 mg/ml and an antioxidant activity (?-carotene bleaching) of 0.53 mg/ml.

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Feasibility of summer corn (Zea mays L.) production in drought affected areas of northern China using water-saving superabsorbent polymer

Plant Soil and Environment ◽

10.17221/101/2011-pse ◽

2011 ◽

Vol 57 (No. 6) ◽

pp. 279-285 ◽

Cited By ~ 1

Author(s):

M. Robiul Islam ◽

Z. Zeng ◽

J. Mao ◽

A. Egrinya Eneji ◽

X. Xue ◽

...

Keyword(s):

Zea Mays ◽

Crop Production ◽

Zea Mays L ◽

Management Practice ◽

Northern China ◽

Water Saving ◽

Growth And Yield ◽

Corn Yield ◽

Superabsorbent Polymer ◽

Very High

In arid and semiarid regions of northern China, there is an increasing interest in using water-saving superabsorbent polymer (SAP) for field crop production. Experiments were conducted during 2009 and 2010 to study the growth and yield characteristics of summer corn (Zea mays L.) under different (control, 0; low, 10; medium, 20; high, 30 and very high, 40 kg/ha) rates of SAP in a drought-affected field of northern China. Corn yield increased slightly following SAP application at low and medium rate, but significantly at high and very high rates by 22.4 and 27.8%. At the same time, plant height, stem diameter, leaf area, biomass accumulation, harvest index and relative water content as well as protein, sugar and starch contents in the grain increased significantly following SAP treatments. The optimum application of superabsorbent polymer for corn cultivation in the study area would be 30 kg/ha as it best increased the grain yield and quality and maintained higher levels of soil nutrients. Lower rates (10 and<br />20 kg/ha) or higher (≥ 40 kg/ha) rates would neither be sufficient nor economical. We suggest that the application of SAP at 30 kg/ha could be an efficient and economic soil management practice for summer corn production in the drought affected regions of northern China or other areas with similar ecologies.

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