scholarly journals Comparative Study of Maize Agronomics Performance under low Nitrogen Soil Availability, in Southern Savanna of DR Congo

Afrika Focus ◽  
2019 ◽  
Vol 32 (2) ◽  
Author(s):  
Jean Pierre Kabongo Tshiabukole ◽  
Gertrude Pongi Khonde ◽  
Amand Mbuya Kankolongo ◽  
Carcy Tshimbombo Jadika ◽  
Roger Kizungu Vumilia
Keyword(s):  
Block Design ◽  
Production Costs ◽  
Average Yield ◽  
Dr Congo ◽  
Yield Performance ◽  
Maize Production ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Low Nitrogen

To determine the growing and yield performance of low nitrogen tolerant maize varieties under fertilized and unfertilized conditions, a study was conducted at the Mvuazi Research Center. Nine varieties were tested with and without fertilizer using the micro-dosing method, following the randomized complete block design with two factors. The results showed a difference among varieties in both crop conditions. The average yield with fertilizer was higher than the yield without fertilizer. The varieties LNTP-W C4 and LNTP-Y C7 registered 5.9 t/ha and 3.6 t/ha respectively under fertilized crop conditions and 7.14t/ha and 7.12t/ha under unfertilized crop conditions. Thus, using Low-N can minimize production costs by improving the productivity of soils low in Nitrogen typical of conditions of the southwestern savanna. KEY WORDS: LOW NITROGEN SOIL, LNTP, MAIZE PRODUCTION, FERTILIZER, SAVANNA, INERA-DRC

scholarly journals Comparative Study of Maize Agronomics Performance Under Low Nitrogen Soil Availability, in Southern Savanna of Dr Congo

Afrika Focus ◽  
2019 ◽  
Vol 32 (2) ◽  
pp. 57-64
Author(s):  
Jean Pierre Kabongo Tshiabukole ◽  
Gertrude Pongi Khonde ◽  
Amand Mbuya Kankolongo ◽  
Carcy Tshimbombo Jadika ◽  
Roger Kizungu Vumilia
Keyword(s):  
Block Design ◽  
Production Costs ◽  
Average Yield ◽  
Dr Congo ◽  
Yield Performance ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Low Nitrogen ◽  
Dosing Method

To determine the growing and yield performance of low nitrogen tolerant maize varieties under fertilized and unfertilized conditions, a study was conducted at the Mvuazi Research Center. Nine varieties were tested with and without fertilizer using the micro-dosing method, following the randomized complete block design with two factors. The results showed a difference among varieties in both crop conditions. The average yield with fertilizer was higher than the yield without fertilizer. The varieties LNTP-W C4 and LNTP-Y C7 registered 5.9 t/ha and 3.6 t/ha respectively under fertilized crop conditions and 7.14t/ha and 7.12t/ha under unfertilized crop conditions. Thus, using Low-N can minimize production costs by improving the productivity of soils low in Nitrogen typical of conditions of the southwestern savanna.

scholarly journals Effects of row spacings and varieties on grain yield and economics of maize

2020 ◽  
Vol 3 (1) ◽  
pp. 209-218
Author(s):  
Saurabha Koirala ◽  
Akash Dhakal ◽  
Dhiraj Niraula ◽  
Sampurna Bartaula ◽  
Urbashi Panthi ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Density ◽  
Block Design ◽  
Row Spacing ◽  
Plant Spacing ◽  
Thousand Grain Weight ◽  
Maize Production ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Four Levels

Maize is the second most important crop of Nepal. The yield of the crop is low due to lack of appropriate plant density for the varieties. The field experiment was carried out to study the effect of different row spacings on different maize varieties at Deupur, Lamahi municipality of the dang district in province No. 5, Nepal during the rainy season from June to September, 2018. Four levels of spacings (boardcasting and three row spacings of 45, 60 and 75 cm) and two maize varieties (Rampur Composite and Arun-2) were evaluated using randomized complete block design with three replications. The highest grain yield was found in Rampur Composite and Arun-2 while they were planted with row spacing of 60 cm with plant to plant spacing of 25 cm. The highest grain yield, cob length, cob circumference, number of rows per cob, thousand grain weight  were reported when maize was planted in the  row spacing 60×25cm. Among the maize varieties, Rampur Composite produced the highest grain yield, cob length, cob circumference, number of rows per cob as compared to Arun-2. This study suggested that maize production can be maximized by cultivating maize varieties with row spacing of 60 cm with plant to plant spacing of 25 cm.

scholarly journals Assessing the effect of phosphorus application on early growth of maize at Sunderbazar, Lamjung, Nepal

2016 ◽  
Vol 2 (1) ◽  
pp. 117-122
Author(s):  
Ram Kumar Shrestha ◽  
Lal Prasad Amgain ◽  
Sadikshya Aryal
Keyword(s):  
Block Design ◽  
Early Growth ◽  
Shoot Biomass ◽  
Maize Production ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Essential Nutrient ◽  
Biomass Plant ◽  
Phosphorus Application ◽  
Better Than

Phosphorus (P) is an essential nutrient element for maize production. A pot experiment was conducted during May-June, 2015 to assess the effects of different rates of P on early growth of maize plant at Sundarbazar, Lamjung. Two maize varieties (Rato Makai and Poshilo Makai-1) were subjected to four P levels (0 kg ha-1,13 kg ha-1, 18 kg ha-1, and 23 kg ha-1) in randomized complete block design with four replications. The effects of different P level on root elongation, root biomass, plant height, root shoot biomass ratio and total dry matter were investigated at 45 days after sowing. For all parameters, the maximum value was obtained when soil was added with 18 kg P ha-1 & the minimum value under the control of 0 kg P ha-1. Maize varieties differed significantly in terms of all the parameters under study, and Poshilo Makai-1 performed better than Rato Makai at all P levels. So, from this result, it can be concluded that Poshilo Makai-1 appeared to be P efficient over Rato Makai at early growth stage. However, it would be necessary to look at the response of crop up to maturity and at wider range of P to have the better insight of their relative performance.

scholarly journals Response Of Maize Varieties To Sowing Dates In Inner Terai Region, Dang, Nepal

2019 ◽  
Vol 2 (2) ◽  
pp. 27-31
Author(s):  
Pukar Khanal ◽  
Rupak Karn ◽  
Pratibha Budhathoki Chhetri ◽  
Samita Karki ◽  
Shrawan Kumar Sah
Keyword(s):  
Unit Area ◽  
Block Design ◽  
Climatic Conditions ◽  
Spring Season ◽  
Thousand Grain Weight ◽  
Maize Hybrids ◽  
Sowing Dates ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Hybrid Maize

AbstractSowing dates and varieties affect the productivity of maize. A field experiment was conducted to find out the response of maize hybrids to sowing dates on growth and productivity of maize in spring season at Lamahi, Dang in 2019. The experiment was laid out in two factor factorial Randomized Complete Block Design with four replications. The treatment consisted of combination of three different sowing dates (February 1, February12 and February 23) and two maize varieties (Arun-2 i.e. OPV and hybrid Bioseed-9220).The result revealed that earlier planting on February 1 produced the highest yield (8265 Kg ha-1) which was significantly superior than latter planting of February 12(6099 kg ha-1)and February 23 (5934 kg ha-1).The higher yield in earlier planting was due to significantly higher no of kernel per ear, non-significant but higher number of cob per unit area, thousand grain weight. Similarly, Bioseed 9220 produced higher yield (7798 kg ha-1) compared to Arun-2 (5,734 kg ha-1). The higher yield of hybrid Bioseed 9220 was because of higher number of cob per unit area harvested and more number of kernel per cob. Therefore, earlier planting with hybrid maize is recommended in spring season of Dang and locations with similar climatic conditions for higher productivity of maize.

scholarly journals Respon Pertumbuhan Tanaman Cengkeh (Syzygium aromaticum (L.) Merr. Perr.) dengan Aplikasi Pupuk Organik-Anorganik dan Triakontanol

2020 ◽  
Vol 47 (3) ◽  
pp. 326-332
Author(s):  
Syahdin Launuru ◽  
Ade Wachjar ◽  
Dan Ani Kurniawati
Keyword(s):  
Leaf Area ◽  
Nutrient Dynamics ◽  
Block Design ◽  
Organic Fertilizer ◽  
Inorganic Fertilizer ◽  
Syzygium Aromaticum ◽  
Chlorophyll B ◽  
Recommended Dosage ◽  
Randomized Complete Block Design ◽  
Two Factors

Application of right dosage of fertilizer and concentration of plant growth regulator are supporting factor of clove growth. This study was aimed to obtain the best combination of organic-inorganic fertilizer, the best triacontanol concentration and both interactions for increasing clove growth. This study used a Randomized Complete Block Design (RCBD) with two factors. The first factor was the organic-inorganic fertilizer dosage package that consisted of 6 levels, i.e no fertilizer, 100% recommended dosage of inorganic fertilizer (r.d.i.f), 25% recommended dosage of organic fertilizer (r.d.o.f) + 75% r.d.i.f, 50% r.d.o.f + 50% r.d.i.f, 75% r.d.o.f + 25% r.d.i.f, 100% r.d.o.f. The second factor was the concentration of triacontanol that consisted of 3 levels, i.e no triacontanol, 2 mg L-1 and 4 mg L-1. The results showed that the application of 25% r.d.o.f + 75% r.d.i.f produced the best clove growth, but it was not significantly different from the combination treatment of the two other types of fertilizer as indicated by the greatest improvement on stem diameter, branches number, leaf area, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids. Clove plants did not respond to the application of triacontanol at a concentration of 2 mg L-1, but gave a negative response to the application of triacontanol 4 mg L-1 on the plant height and leaf area variables. The interaction of the two factors did not have significant effects on all variables. Keywords: chlorophyll, morphology, nutrient dynamics, physiology, vegetative growth  

scholarly journals Yield Performance of Fine Aromatic Rice in Response to Variety and Level of Nitrogen

2016 ◽  
Vol 9 (1) ◽  
pp. 41-45 ◽  
Author(s):  
SA Chowdhury ◽  
SK Paul ◽  
MAR Sarkar
Keyword(s):  
Natural Resources ◽  
Grain Yield ◽  
Block Design ◽  
Aromatic Rice ◽  
Yield Performance ◽  
Field Laboratory ◽  
Randomized Complete Block Design ◽  
Promising Practice

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during June to December 2014 with a view to finding out the effect of variety and level of nitrogen on the yield performance of fine aromatic rice. The experiment consisted of three varieties viz. Kalizira, Binadhan-13 and BRRI dhan34, and six levels of nitrogen viz. 0, 30, 60, 90 kg N ha-1, USG 1.8 g 4 hills-1 (55 kg N ha-1) and USG 2.7 g 4 hills-1 (80 kg N ha-1). The experiment was laid out in a randomized complete block design with three replications. Variety, level of nitrogen and their interaction significantly influenced the yield of aromatic rice. The highest grain yield (3.33 t ha-1) was obtained from Binadhan-13 followed by BRRI dhan34 (3.16 t ha-1) and the lowest grain yield was found in Kalizira (2.11 t ha-1). In case of N, the tallest plant (140.3 cm), highest number of effective tillers hill-1 (11.40), grains panicle-1 (152.8), and grain yield (3.32 t ha-1) were obtained when fertilized with USG 1.8 g 4 hills-1 and the lowest values were found in 0 kg N ha-1. Therefore, Binadhan-13 fertilized with USG 1.8 g 4 hills-1 (55 kg N ha-1) appeared as the promising practice for appreciable grain yield.J. Environ. Sci. & Natural Resources, 9(1): 41-45 2016

scholarly journals PENGARUH KONSENTRASI GULA DAN LAMA FERMENTASI TERHADAP KARAKTERISTIK SARI KACANG HIJAU (Phaseolus radiatus L.) PROBIOTIK DENGAN PENAMBAHAN Lactobacillus rhamnosus SKG 34

2018 ◽  
Vol 7 (3) ◽  
pp. 93
Author(s):  
Yemima Dwi Gita Sembiring ◽  
Komang Ayu Nocianitri ◽  
Agus Selamet Duniaji
Keyword(s):  
Lactic Acid ◽  
Mung Bean ◽  
Block Design ◽  
Lactobacillus Rhamnosus ◽  
Total Sugar ◽  
Sugar Concentration ◽  
Fermentation Time ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Concentration Levels

This research was conducted to determine the effect of sugar contentration and fermentation time to the charateristics of mung bean probiotic drink with the addition of Lactobacillus rhamnosus SKG 34. The Randomized Complete Block Design (RCBD) with two factors was used in this research. First factor was the sugar concentration which consists of three levels 2.5%, 5%, 7.5%. Second factor was the fermentation time which consists of five levels 8 hours, 10 hours, 12 hours, 14 hours and 16 hours. The parameters observed in this research were sugar level, total lactic acid, pH, total lactic acid bacteria (LAB), and sensory acceptances such as colour, flavor, taste and overall acceptance. The result of this research showed that the sugar concentration had significant effect to the total sugar but had no significant effect to the total lactic acid and pH. The fermentation time had significant effect to the pH, total lactic acid and total sugar. The interaction of sugar concentration and fermentation time had no significant effect to the characteristic of pH, total lactic acid, total sugar, color, flavor, taste and overall acceptance. Mung bean probiotic drink with the best characteristic was obtained at 5% of sugar concentration and 8 hours fermentation time with criteria sugar concentration levels at 8.06 %, total lactic acid 0.27 %, pH at 5.29, and 1.6 x 108 CFU/ml total LAB with sensory results state that the colour was slightly liked, the flavor was slightly liked, the taste was preferred and slightly sweet, and overall acceptance was preferred.

scholarly journals The response of Stecklings Age and Plant Spacing on Carrot Seed Quality and Production

2020 ◽  
Vol 3 (2) ◽  
pp. 71
Author(s):  
Fatiani Manik ◽  
Rasiska Tarigan ◽  
Susilawati Barus
Keyword(s):  
Seed Production ◽  
Field Trial ◽  
Seed Quality ◽  
Block Design ◽  
Plant Spacing ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Carrot Seed

The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.

scholarly journals Effects of Shade and Biochar Application on the Quercetin Content of Longevity Spinach in Inceptisol

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Angga Prasetya ◽  
Sri Nuryani Hidayah Utami ◽  
Eko Hanudin
Keyword(s):  
Developing Countries ◽  
Block Design ◽  
Flavonoid Content ◽  
Traditional Medicines ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Long Time ◽  
Nitrogen Nutrients

Traditional medicines have been used in both developed and developing countries for a long time, one of which is longevity spinach (Gynura procumbens). Its plants are one type of plant that is used by the community to treat various diseases with their flavonoid content. This plant produces various flavonoids, such as quercetin, which can be optimized by providing shade and increasing nitrogen nutrients by giving biochar and fertilizing. This study aimed to determine the effects of biochar, shade, and fertilizer on the growth and quercetin content of Gynura procumbens plants. This research was arranged in a randomized complete block design (RCBD) with two factors. The first factor was the administration of biochar at four doses, consisting of B0 (without biochar), B10 (biochar 10 tons/ha), B15 (biochar 15 tons/ha), and B20 (biochar 20 tons/ha). Meanwhile, the second factor was the intensity of the shade with three levels of treatment, namely, I0 (without shade), I50 (50%), and I70 (70%). The results showed that the addition of 15 ton/ha of biochar with 70% shade increased the quercetin content by 0.51%.

scholarly journals PENGARUH JARAK TANAM JAGUNG MANIS (Zea mays Saccharata STURT) DAN VARIETAS KUBIS (Brassica oleracea VAR. CAPITATA) TERHADAP HASIL JAGUNG MANIS DAN KUBIS PADA SISTEM TUMPANGSARI DI DESA CANDI KUNING, TABANAN

AGRICA ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
I Wayan Sunarta
Keyword(s):  
Land Use ◽  
Sweet Corn ◽  
Block Design ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Corn Plant ◽  
Dryland Farming ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Short Season

Diversification of plant species is needed to anticipate price fluctuation of vegetables. Intercropping system compared to monoculture can give more benefits to farmers. The arrangement of plant spacings of sweet corn and cabbage variety is expected to result in higher yields and benefits in intercropping. The field experiment, which had the objective to study the effects of plant spacing of sweet corn and cabbage variety on yields of sweet corn and cabbage in the intercropping system, had been conducted from March to July 2008. The experiment was carried out at the dryland farming area at Candikuning Village, district of Baturiti, Tabanan regency, 1.200 m asl. In the experiment, a randomized complete block design with two factors namely plant spacing of sweet corn (120 cm x40 cm, 180 cm x 40 cm and 240 cm x 40 cm) and variety of cabbage (Green Nova and Summer-Autumn) were used. Plant spacing of cabbage was 60 cm x 40 cm. All treatments were replicated four times. The results of the experiment showed that the effect of interaction between plant spacing of sweet corn and cabbage variety in intercropping was not significant on yields of sweet corn and cabbage. Individually, sweet corn plant spacing of 120 cm x40 cm gave the highest fresh weight of cob without husk (10,91 t ha"'), which was 44.50% and 80.93% respectively higher than the spacing of ! 80 cm x 40 cm and 240 cm x 40 cm. The spacing of 180 cm x 40 cm resulted in not the significantly different fresh weight of cob with husk but gave the highest fresh weight of cabbage heads (56.101 ha'1), which was 27.36% higher than that at sweet corn spacing of 120 cm x 40 cm and was not significantly different from that at 240 cm x 40 cm. Cabbage variety Green Nova gave the highest head (56.101 ha1), which was 14.48% higher than variety Summer-Autumn. Intercropping between cabbage variety Green Nova and Sweet corn at 180 cm x 40 cm spacing resulted in the highest benefit (Rp. 20,488125 t ha'1), which was Rp. 3,335500 higher than the average benefit of cabbage monoculture. The efficiency of land use in intercropping was higher (LER: 1.69) than in monoculture (LER: 1). It is suggested to use cabbage variety Green Nova intercropped with sweet corn at I 80 cm x 40 cm spacing. An experiment studying the effect of cabbage intercropped with sweet corn and other short season vegetables planted after harvesting cabbages is also suggested.

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