Growth and yield of maize (Zea mays L.) as influenced by date of sowing and hybrids

A field experiment was conducted at college of Agriculture, UAHS, Shivamogga during kharif 2015 to study the effect of date of sowing and hybrids on growth and yield of Maize (Zea maysL.). The experi-ment was laid out in randomized complete block design (RCBD) with factorial concept and replicated thrice. There were eight treatment combinations which includes four dates of sowing (15thJune, 30thJune, 15thJuly and 30thJuly) and two hybrids (PAC-740 and CP-818). Crop sown on 15thJune recorded significantly higher plant height (201.03 cm), number of green leaves (3.03), leaf area (992.49 cm2), LAI (0.74), total dry matter (305.65 g), cob length (22.16 cm), kernels cob-1 (670.93), kernel yield cob-1(230.95 g), test weight (43.08 g), kernel yield (7632.57 kg ha-1), stover yield (9512.56 kg ha-1) andhar-vest index (44.52 %)as compared to other sowing dates. Among the hybrids CP -818 recorded significantly higher plant height (191.85 cm), number of green leaves (2.72), leaf area (954.32 cm2), LAI (0.71), total dry matter (277.65 g), cob length (19.81 cm), kernels cob-1 (541.88), kernel yield cob-1(207.71 g), test weight (39.16 g), kernel yield (7060.72 kg ha-1), Stover yield (8839.98 kg ha-1) and harvest in-dex (44.44%) as compared to PAC-740. The interaction between dates of sowing and hybrids are non-significant.

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Response of fertility and agro-chemical on growth and yield of different varieties of Clusterbean

International Journal of Agricultural Invention ◽

10.46492/ijai/2019.5.2.12 ◽

2019 ◽

Vol 5 (02) ◽

pp. 213-217

Author(s):

Rekha Yogi ◽

O. P. Sharma ◽

H. P. Verma ◽

Krishna P. Kanwar ◽

A. C. Shivran

Keyword(s):

Plant Height ◽

Seed Yield ◽

Dry Matter ◽

Block Design ◽

Test Weight ◽

Growth And Yield ◽

Flowering Stage ◽

Higher Plant ◽

Stover Yield ◽

Biological Yield

A field experiment was conducted during kharif season of 2013 to study response of clusterbean varieties to fertility levels and agro-chemicals at SKN College of Agriculture, Jobner. The experiment consisted of two varieties (RGC-1038 and RGC-1066), three treatments of fertility levels (control, 50% RDF and 100% RDF) and three treatments of agro-chemicals (control, thiourea 500 ppm twice at vegetative and pre flowering stage and thiourea 100 ppm twice at vegetative and pre flowering stage) thereby making eighteen treatment combinations tested in randomized block design with three replications. The results indicated that RGC 1066 variety recorded significantly higher plant height 60 DAS and at harvest and dry matter per meter row length at 30 DAS, 60 DAS and at harvest, number of pods/plant and seeds/pod, test weight, seed yield, stover yield and biological yield as compared to variety of RGC-1038. The result further indicated that application of fertilized 100% RDF significantly gave higher plant height at 60 DAS and at harvest similarly, dry matter per meter row length at 30 DAS, 60 DAS and at harvest, number of pods/plant and seeds/pod, test weight, seed yield, stover yield and biological yield recorded higher over control and fertilized with 50% RDF. Likewise, application of agro-chemical @ thiourea (500 ppm) significantly increased the plant height at 60 DAS and at harvest and dry matter per meter row length at 30 DAS, 60 DAS and at harvest, number of pods/plant and seeds/pod, test weight, seed yield, stover yield and biological yield and remained at par with the application of agro-chemical @ TGA (100 ppm) over control. However, plant height at 30 DAS remained materially unchanged under different varieties, fertility levels and agro-chemicals.

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Effects of weed management on agronomic performance and productivity of hybrid maize (Zea mays L.)

Journal of Agriculture and Applied Biology ◽

10.11594/jaab.02.02.01 ◽

2021 ◽

Vol 2 (2) ◽

pp. 70-75

Author(s):

Burhanuddin Wiqar ◽

Mohammad Safar Noori ◽

Sayed Younos Amini

Keyword(s):

Leaf Area ◽

Plant Height ◽

Weed Management ◽

Good Method ◽

Kernel Weight ◽

Growth And Yield ◽

Dry Matter Accumulation ◽

Higher Plant ◽

Stover Yield ◽

Kernel Yield

The yield loss as a result of weed infestation is a major problem in maize fields. Hence, this research meant to examine the impacts of weed chemical control on maize growth and yield. The design of experiment was randomized complete block, and comprised 10 treatments viz., T1 (Control, weedy check), T2 (Weed free), T3 (Atrazine 1.5 kg ha-1 pre-emergence), T4 (Atrazine 750 g ha-1 + Pendimethalin 750 ml ha-1 pre-emergence), T5 (Atrazine 1.5 kg ha-1 followed by 2,4-D amine 0.4 kg ha-1 at 25 days after sowing as Post-emergence), T6 (Halosulfuron 67 g ha-1 at 25 DAS), T7 (Atrazine 1.5 kg ha-1 pre-emergence followed by Halosulfuron 90 g ha-1 25 days after sowing), T8 (Tembotrione 120 g ha-1 Post-emergence at 25 days after sowing), T9 (Pendimethalin 1000 ml ha-1 pre-rise fb Atrazine 750 g ha-1 + 2,4-D amine 0.4 kg ha-1 at 25 days after sowing as Post-emergence) and T10 (Atrazine 1.5 kg ha-1 pre-emergence followed by Tembotrione 120 g ha-1 Post-emergence at 25 days after sowing) with 3 replicates. The results showed that among other treatments, T10 recorded highest number of kernels per row (36.18), number of kernel cob-1 (499.12) and kernel weight cob-1 (136.97 g). A higher plant height (172.19 cm), leaf area (396.6 cm2 plant-1), dry matter accumulation (211.37 g plant-1), kernel yield (6.7 t ha-1) and stover yield (11.6 t ha-1) were found with weed free check plot which is on par with T10 treatment which brought about a higher value of plant height (162.93 cm), dry weight accumulation (205.7 g plant-1), leaf area (384.3 cm2 plant-1), kernel yield (6.5 t ha-1) and stover yield (11.4 t ha-1). In the meantime, T9 treatment reasonably increased kernel yield (6.2 t ha-1) and stover yield (11.0 t ha-1). It shows that application of herbicides as pre-emergence followed by post-emergence, such as T10 treatment could be a good method for weed control in maize fields.

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Effect of brewery spent grain on the growth and yield of sorghum (Sorghum bicolor (l.) Moench)

Sustainability Agri Food and Environmental Research ◽

10.7770/safer-v0n0-art1791 ◽

2020 ◽

Vol 8 (1) ◽

Author(s):

Bright Ehijiele Amenkhienan ◽

Harry Henry Isitekhale

Keyword(s):

Leaf Area ◽

Plant Height ◽

Dry Matter ◽

Block Design ◽

Growth And Yield ◽

Dry Matter Yield ◽

Higher Plant ◽

Whole Plant ◽

Spent Grain ◽

Number Of Leaves

A field experiment was conducted at the Teaching and Research Farm, Ambrose Alli University, Ekpoma to investigate the effect of brewery spent grain on the growth and yield of sorghum. Treatment consisted of five rates of brewery spent grain (BSG) (0, 2, 4, 6 and 8 t/ha). The experiment was a randomized complete block design (RCBD) with three replicates. Sorghum variety (ABS 4540 AMZU) was used as a test crop. The parameters measured included: plant height, leaf area, number of leaves/plant at 3, 6 and 9 weeks after planting (WAP). Whole plant dry matter yield and grain weight were also determined. The results obtained showed that BSG treatments had significantly (P<0.05) higher plant height, leaf area and number of leaves than the control in all the weeks after planting, except for number of leaves at 3 WAP. At 3 and 6 WAP, the tallest plants (21.33 cm and 33.05 cm) were obtained from crops treated with 8 t/ha BSG while those treated with 6 t/ha BSG had the tallest plant (95.04 cm) at 9 WAP. 6 t/ha BSG recorded the highest leaf area at 3, 6 and 9 WAP. At 6 WAP, the highest number of leaves (9.00) was observed from plants which received the application of 6 t/ha BSG. However, control had the highest number of leaves (10.00) than BSG treatments. The highest grain yield (2.54 t/ha) and dry matter yield (3.80 g) were obtained from crops which received the application of 6 and 8 t/ha BSG, respectively. Keywords: Brewery Spent Grain, Growth, Sorghum, Yield.

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Adubação orgânica e águas de diferentes níveis salinos no cultivo do algodoeiro de fibra colorida

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v12i1.5276 ◽

2017 ◽

Vol 12 (1) ◽

pp. 79 ◽

Cited By ~ 1

Author(s):

Leandro de Pádua Souza ◽

Lauriane Almeida dos Anjos Soares ◽

Geovani Soares de Lima ◽

Reginaldo Gomes Nobre ◽

Hans Raj Gheyi ◽

...

Keyword(s):

Organic Matter ◽

Leaf Area ◽

Plant Height ◽

Dry Matter ◽

Sandy Loam ◽

Block Design ◽

Seed Mass ◽

Growth And Yield ◽

Organic Fertilization ◽

Total Seed

No semiárido a ocorrência de longos períodos de estiagem vem tornado a irrigação uma pratica indispensável para exploração agrícola. Desta forma objetivou-se, com esta pesquisa, avaliar o crescimento e a produção de do algodoeiro cv. BRS Jady irrigado com águas de distintos níveis de salinidades e doses de matéria orgânica. O experimento foi conduzido utilizando-se um Neossolo Regolítico Eutrófico de textura franco arenosa no município de Campina Grande-PB. Adotou-se o delineamento experimental de blocos ao acaso, em esquema fatorial 4 x 4, com três repetições, cujos os tratamentos resultaram da combinação de quatro níveis de condutividade elétrica da água (CEa) (1,7; 3,4; 5,1 e 6,8 dS m-1) e quatro doses de matéria orgânica (0; 2,5; 3,5 e 4,5% em base do volume do solo). A irrigação com água salina de CE a partir 1,7 dS m-1 afetou negativamente o crescimento e a produção do algodoeiro cv. BRS Jady, provocando reduções no diâmetro de caule, altura de planta, área foliar, fitomassa seca total, massa de algodão em pluma, massa total de sementes e rendimento de fibra. A adubação orgânica com doses crescentes promoveu aumento na altura de plantas, área foliar e massa total de sementes do algodoeiro cv. BRS Jady. Houve interação entre os fatores aguas salinas e doses de matéria orgânica para diâmetro caulinar, fitomassa seca total e massa de algodão em pluma, sendo os maiores valores obtidos na das doses de 3,5 e 4,5% de matéria orgânica.Organic fertilization and waters of different salin levels in the cultivation of colored fiber cottonAbstract: In the semiarid the occurrence of long periods of drought has made irrigation an indispensable practice for agricultural exploration. The objective of this research was to evaluate the growth and yield of cotton cv. BRS Jady irrigated with waters of different levels of salinities and doses of organic matter. The experiment was conducted using a sandy loam texture Eutrophic Neolithic in the municipality of Campina Grande-PB. A randomized complete block design was used in a 4 x 4 factorial scheme with three replications, the treatments of which were the result of the combination of four levels of electrical conductivity (ECw, 1.7, 3.4, 5.1 And 6.8 dS m-1) and four doses of organic matter (0, 2.5, 3.5 and 4.5% on the basis of soil volume). Irrigation with EC saline water from 1.7 dS m-1 negatively affected the growth and yield of cotton cv. BRS Jady, causing reductions in stem diameter, plant height, leaf area, total dry matter, feathered cotton mass, total seed mass and fiber yield. Organic fertilization with increasing doses promoted increase in plant height, leaf area and total seed mass of cotton cv. BRS Jady. There was interaction between saltwater factors and organic matter doses for shoot diameter, total dry matter and cotton mass in feathers, the highest values being obtained in the 3.5 and 4.5% organic matter doses.

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Evaluation of improved cassava genotypes for yield and related traits for a better breeding strategy under different agroecologies in Nigeria

Euphytica ◽

10.1007/s10681-021-02798-9 ◽

2021 ◽

Vol 217 (4) ◽

Author(s):

N. A. Adetoro ◽

O. O. Oworu ◽

A. L. Nassir ◽

A. Bello ◽

E. Parkes ◽

...

Keyword(s):

Plant Height ◽

Dry Matter ◽

Block Design ◽

Pasting Properties ◽

Growth And Yield ◽

Root Weight ◽

Root Yield ◽

Root Characteristics ◽

Stay Green ◽

Fresh Root

AbstractThis study aimed at determining shoot and root characteristics of cassava as affected by root yield and the influence of soil moisture on vegetative growth and yield. Thirty cassava genotypes were evaluated for morphological and physiological characterization in three locations in Nigeria: Ibadan, Mokwa and Zaria. Randomized complete block design was used with four replicates. Studies on the pasting properties of the genotypes were also carried out. Data were collected on plant height, stem girth, stay-green ability, garri and fresh root weight. Genotypes differed significantly (P < 0.05) across and within locations for shoot and root characteristics. Across locations, genotype 011663 had the highest plant height (132.4 cm); 30572 had the largest stem girth (8.6 cm); and 010040 was the best stay-green (2.2). Genotype 011086 had the highest number of roots per plot (95.7), 950289 had the highest fresh root yield (24.3 t/ha), and 990554 had the highest percentage of dry matter (35.2). Trends in root yields across locations were Ibadan (28.9 t/ha), Mokwa (20.3 t/ha), and Zaria (8 t/ha). Five genotypes IITA-TMS-IBA950289, 010034, 990554, 011807, and 980581 had negligible interactions with the environment and so have broad adaptation and are considered stable; and two clones 011807 and 950166 were found to be the best for pasting properties. Breeding strategies that consider root size, total root number, harvest index, dry matter, with applications for household foods and industrial uses, will be an effective and efficient way to select genotypes for high yield.

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Growth and yield of wheat at different dates of sowing under chrland ecosystem of Bangladesh

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v14i2.32688 ◽

2017 ◽

Vol 14 (2) ◽

pp. 147-154 ◽

Cited By ~ 1

Author(s):

MM Kamrozzaman ◽

MAH Khan ◽

S Ahmed ◽

N Sultana

Keyword(s):

Growth Rate ◽

Leaf Area Index ◽

Leaf Area ◽

Dry Matter ◽

Block Design ◽

Grain Filling ◽

Crop Growth ◽

Growth And Yield ◽

Area Index ◽

Crop Growth Rate

An experiment was conducted at Sadipur charland under Farming System Research and Development Site, Hatgobindapur, Faridpur, during rabi season of 2012-13 and 2013-14 to study the growth and yield performance of cv. BARI Gom-24 as affected by different dates of sowing under Agro-ecological Zone-12 (AEZ-12) of Bangladesh. The experiment was laid out in randomized complete block design with six replications, comprising five different dates of sowing viz. November 5, November 15, November 25, December 5 and December 15. Results reveal that the tallest plant, leaf area index, total dry matter, and crop growth rate were observed in November 25 sown crop and leaf area index, total dry matter and crop growth rate were higher at booting, grain filling, and tillering stages of the crop. Maximum effective tillers hill-1 (3.49), spikes m-2, (311), number of grains spike-1 (42.20) and 1000-grain weight (52.10 g) were produced by November 25 sown crop exhibited the highest grain (4.30 t ha-1) and straw yield (4.94 t ha-1) as well as harvest index (46.88%) of the crop. Lowest performance was observed both in early (November 5) and late sown crop (December 15). The overall results indicated that November 25 sown crop showed better performance in respect of growth and yield of wheat under charland ecosystem of Bangladesh.J. Bangladesh Agril. Univ. 14(2): 147-154, December 2016

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Optimasi Dosis Pupuk Kandang Ayam dan NPK pada Budidaya Kubis Bunga (Brassica oleracea var. Botrytis L.)

AgriHealth: Journal of Agri-food, Nutrition and Public Health ◽

10.20961/agrihealth.v2i1.49828 ◽

2021 ◽

Vol 2 (1) ◽

pp. 32

Author(s):

Irpan Gunawan ◽

Atak Tauhid ◽

Isna Tustiyani

Keyword(s):

Leaf Area ◽

Plant Height ◽

Block Design ◽

Chicken Manure ◽

Growth And Yield ◽

Randomized Block Design ◽

Affected Plant ◽

Two Factors ◽

Number Of Leaves ◽

Npk Fertilizer

Cauliflower is one of the vegetables for consumers. The demand for cauliflower was rising so it must be scaled up with fertilizer. The purpose of this study was to study the effect of chicken manure and NPK fertilizer on the growth and yield of cauliflower. The study was conducted in Sukasenang Village, Banyuresmi Sub-district, Garut Regency from July to August 2019. The study used a Randomized Block Design (RBD) in two factors each of the 3 rates with 2 replications. The first factor was the rates of chicken manure which consisted of 0, 10 and 20 tons ha-1; the second factor was NPK fertilizer which consists of 0, 100 and 200 kg ha-1. The parameter of this research was plant height, number of leaves, leaf area, weight and diameter crud. The results showed that there was no interaction between the chicken manure and NPK fertilizer. The treatment of 20 tons ha-1 chicken manure affected the variable plant height, the number of leaves and leaf area. The rates of 200 kg ha-1 NPK fertilizer had affected plant height, number of leaves, weight and diameter crud.

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Evaluation of growth and yield of selected hybrid and inbred rice varieties grown in net-house during transplanted aman season

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v34i1.5755 ◽

1970 ◽

Vol 34 (1) ◽

pp. 67-73

Author(s):

M SH Islam ◽

MSU Bhuiya ◽

AR Gomosta ◽

AR Sarkar ◽

MM Hussain

Keyword(s):

Leaf Area ◽

Plant Height ◽

Dry Matter ◽

Dry Weight ◽

Growth And Yield ◽

Rooting Depth ◽

Rice Varieties ◽

Root Dry Weight ◽

Matter Production ◽

1000 Grain Weight

Pot experiments were conducted during T. aman 2001 and 2002 (wet season) at Bangladesh Rice Research Institute (BRRI) in net house. Hybrid variety Sonarbangla-1 and inbred modern variety BRRI dhan-31 were used in both the seasons and BRRI hybrid dhan-l was used in 2002. The main objective of the experiments was to compare the growth and yield behaviour of hybrid and inbred rice varieties under controlled condition. In 2001, BRRI dhan-3l had about 10-15% higher plant height, very similar tillers/plant, 15-25% higher leaf area at all days after transplanting (DAT) compared to Sonarbangla-1. Sonarbangla- 1 had about 40% higher dry matter production at 25 DAT but had very similar dry matter production at 50 and 75 DAT, 4-11% higher rooting depth at all DATs, about 22% higher root dry weight at 25 DAT, but 5-10% lower root dry weight at 50 and 75 DAT compared to BRRI dhan-31. The photosynthetic rate was higher (20 μ mol m-2/sec-1) in BRRI dhan-3l at 35 DAT (maximum tillering stage) but at 65 DAT, Sonarbangla-l had higher photosynthetic rate of 19.5 μ mol m-2 sec-1. BRRI dhan-3l had higher panicles/plant than Sonarbangla-1, but Sonarbangla-1 had higher number of grains/panicle, 1000-grain weight and grain yield than BRRI dhan-31. In 2002, BRRI dhan-31 had the highest plant height at 25 DAT, but at 75 DAT, BRRI hybrid dhan-l had the highest plant height. Sonarbangla-1 had the largest leaf area at 25 and 50 DAT followed by BRRI dhan-31, but at 75 DAT, BRRI dhan-31 had the largest leaf area. The highest shoot dry matter was observed in BRRI dhan-31 followed by Sonarbangla-1 at all DATs. Sonarbangla-1 had the highest rooting depth and root dry weight at all DATs. BRRI dhan-31 gave the highest number of panicles/plant followed by Sonarbangla-I, BRRI hybrid dhan-l had the highest grains/panicle followed by BRRI dhan-31 and Sonarbangla-I had the highest 1000-grain weight followed by BRRI dhan-31. The highest amount of grains/plant (34.6 g) was obtained from BRRI dhan-31. Key Words: Shoot dry matter; root dry weight; leaf area; photosynthesis; grain yield. DOI: 10.3329/bjar.v34i1.5755Bangladesh J. Agril. Res. 34(1) : 67-73, March 2009

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Growth and Yield of Onion as Influenced by Sulphur and Boron with Mulch Materials

Asian Plant Research Journal ◽

10.9734/aprj/2021/v7i330154 ◽

2021 ◽

pp. 1-14

Author(s):

Sajeed Hasan Bappy ◽

Khaleda Khatun ◽

Tahmina Mostarin ◽

Mutasim Fuad Shuvo ◽

Mst. Umme Habiba ◽

...

Keyword(s):

Plant Height ◽

Dry Matter ◽

Block Design ◽

Matter Content ◽

Growth And Yield ◽

Leaf Number ◽

Maximum Diameter ◽

Dry Matter Content ◽

Economic Point ◽

Neck Diameter

A field experiment was conducted at the research farm of Sher-e-Bangla Agricultural University, Dhaka. During the period from October, 2018 to March, 2019 to find out the growth and yield of onion as influenced by Sulphur and Boron with mulch materials. The experiment consisted of two factors: Factor A: Four doses of Sulphurand Boron fertilizer viz. F0 = S0kgB0kg/ha (Control), F1 = S20kgB1kg/ha, F2 = S40kgB2kg/ha, F3 = S60kgB3kg/ha and Factor B: Four types of mulch viz. M0 = No mulch and no irrigation, M1 = Black polythene, M2 = Water hyacinth and M3 = Rice straw. There were 16 treatment combinations and experiment was setup in a Randomized Complete Block Design (RCBD) with three replications. In case of Sulphur and Boron treatments at 60 days after transplanting (DAT), the highest plant height 53.38 cm, maximum leaf number 10.48, highest bulb length 4.83 cm,, maximum neck diameter (1.31 cm), highest dry matter content (15.98%), dry matter content of leaf (24.74%), single bulb weight (39.93 g), yield per plot (0.80 kg) and yield per hectare (9.98 t) were obtained from F3 treatment. Among the mulch materials, highest plant height at 60 DAT (52.51 cm), maximum leaf number (10.19), highest bulb length (4.52 cm), highest bulb diameter (5.74 cm), maximum neck diameter (1.26 cm), dry matter content of leaf (23.35%), single bulb weight (39.05 g), yield per plot (0.78 kg) and yield per hectare (9.76 t) were obtained from M1 treatment. In combined effect, the highest plant height at 60 DAT (55.54 cm), maximum leaf number (11.47), longest bulb length (5.51 cm), highest bulb diameter (6.68 cm), maximum diameter of neck (1.42 cm), dry matter content of leaf (27.48%), single bulb weight (42.40 g), yield per plot (0.85 kg) and yield per hectare (11.21 t) were obtained from F3M1 treatment (S60kg/ha + B3kg/ha with black polythene mulch). The highest gross return (Tk. 3, 36, 300/ha), net return (Tk. 1, 88, 934/ha) and benefit cost ration (2.28) was obtained from the treatment combination (F3M1). Accordingly, for high growth, high yield, and economic point of view, F3M1 treatment is recommended in onion cultivation.

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Effect of Spacing and Nitrogen Level on Growth and Yield of Maize (Zea mays L.) in Mid hill of Nepal

Malaysian Journal of Halal Research Journal ◽

10.2478/mjhr-2020-0009 ◽

2020 ◽

Vol 3 (2) ◽

pp. 50-55

Author(s):

Ramhari Gaire ◽

Chudamani Pant ◽

Nischal Sapkota ◽

Rajan Dhamaniya ◽

Tej Narayan Bhusal

Keyword(s):

Grain Yield ◽

Leaf Area Index ◽

Leaf Area ◽

Plant Height ◽

Block Design ◽

Organic Matter Content ◽

Growth And Yield ◽

Nitrogen Level ◽

Area Index ◽

Close Spacing

AbstractA field experiment was carried out to study the effect of spacing and nitrogen level on growth and yield of maize in Parbat from February to July, 2019. The experiment was laid out in two Factorial Randomized complete Block Design (RCBD) comprising of spacing: 60×15 cm and 60×25 cm and nitrogen: 30, 60, 90 and 120 kg/ha level as treatment with three replications. “Arun-2” variety of maize was planted on clay loam and acidic soil (pH 5.3) having medium in total nitrogen (0.15%), medium in soil available phosphorus (48.1 kg/ha), medium in soil available potassium (218.8 kg/ha) and medium in organic matter content (2.92%). Result shows that yield was significantly increased with increment in N-level up to 90 kg N/ha. The grain yield (5.18 mt/ha) was significantly higher at 90 kg N/ha than at 30 and 60 kg N/ha but at par with 120 kg N/ha. Significant effect on grain yield due to spacing was observed. The grain yield (4.11 mt/ha) obtained at spacing 60×15 cm. Moreover, the highest grain yield showed that highest grain yield (4.33 mt/ha) was obtained under 90 kg N/ha plus 60×15 cm spacing. The result revealed that different spacing and nitrogen level significantly affect the plant height and leaf area index. The plant height and leaf area index were significantly high at close spacing (60×15 cm) and at 120 kg N/ha. Likewise, yield attributing characteristics like cob length, cob diameter, number of kernel/rows, number of kernel row, thousand gran weight were the highest at 90 kg/ha but as par with 120 kg/ha at close spacing (60×15 cm). This study suggested that maize production can be maximized by cultivating “Arun-2” maize fertilizing with 90 kg N/ha and maintaining 60×15 cm spacing.

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