scholarly journals Response of Nutrient Omission and Irrigation Scheduling on Growth and Productivity of Maize

2020 ◽  
Vol 8 (3) ◽  
pp. 343-354
Author(s):  
N.R. Acharya ◽  
S.K. Sah ◽  
A.K. Gautam ◽  
A.P. Regmi
Keyword(s):  
Grain Yield ◽  
Sandy Loam ◽  
Winter Season ◽  
Grain Filling ◽  
Irrigation Scheduling ◽  
Recommended Dose ◽  
Annual Rainfall ◽  
Irrigation Level ◽  
Main Plot ◽  
Hybrid Maize

An experiment was conducted for response of nutrient omission to irrigation scheduling in hybrid maize during winter season of 2015 at farmer’s field  Khajura, Banke where intense summer and severe winter occurs. Soil is sandy loam and climatically humid sub-tropical with average annual rainfall of 1000-1500 mm. The experiment was replicated 3 times with split plot design having plot size of 3 x 3.6 m2. There were three irrigation level as main plot; (30 -35 DAS, tasseling stage), (30-35 DAS, tasseling, grain filling stage), (tasseling stage) and six level of fertilizer dose as sub-plot; farmer fertilization practice (27.6:27.6:18 N-P-K kg ha-1), recommended dose of fertilizer (160:60:40 N-P-K kgha-1), 50 percent above recommended dose (240: 90: 60 N-P-K kg ha-1), N0PK (60:40 P-K kg ha-1), NP0K (160:40 N-K kg ha-1), NPK0 (160:60 N-P kg ha-1). 3 level of irrigation increased the grain yield (4333 kg ha-1) by 33.7% than 2 level of irrigation (3240.6 kg ha-1) and 78.4% than single irrigation (2428.8 kg ha-1). Similarly, 182.4% grain yield could be increased with RDF (4994.9 kg ha-1) than N0PK (1768.6 kg ha-1). Grain nutrient uptake was recorded 80.4% N (56.3 kg ha-1), 79% P (18.8 kg ha-1), 88.8% K (15.1 kg ha-1) higher with three levels of irrigation than single irrigation N (31.2 kg ha-1), P (10.5 kg ha-1), K (8 kg ha-1) and 184% N (64.6 kg ha-1), 183.7% P (21 kg ha-1) and 188% K (17 kg ha-1) was recorded higher with RDF than (N0PK) N (22.7 kg ha-1), P (7.4 kg ha-1), K (5.9 kg ha-1). Int. J. Appl. Sci. Biotechnol. Vol 8(3): 343-354

scholarly journals Spad Value Varies With Age And Leaf Of Maize Plant And Its Relationship With Grain Yield

2020 ◽  
Author(s):  
Bishnu Kandel
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Grain Filling ◽  
Strong Positive Correlation ◽  
Spad Value ◽  
Increase With Increase ◽  
Phase Data ◽  
Hybrid Maize ◽  
Value Measurement

Abstract Objectives A field experiment was conducted to evaluate ten hybrid maize for photosynthetic traits. Ten hybrid were replicate thricely under Randomized Complete Block Design (RCBD) during winter season of 2018. SPAD 502 Plus meter was used for SPAD value measurement. Vegetative stage all photosynthetic measurement taken from T1 (top most leaf) and T3 (2nd leaf from top leaf) leaves of 5 plants of one plot during 30 days interval. For reproductive phase data taken from Eo/ eo (Leaf attach to cob/ear), E2 or e2 (2nd leaf from Eo /eo leaf) leaves during entire period of grain filling at 10 days intervals. Same leaves were used for overall data collection.Results Result showed that significantly different SPAD value were observed for different age and leaves of maize during pre and post anthesis. SPAD value increase with increase in age and decrease at the time of maturity. During vegetative and juvenile phase T3 leaf has more SPAD value than T1. During reproductive stage eo leaves had more SPAD than e2 leaves, so center leaf of maize contributes more to grain yield. Correlation studies showed that there is strong positive correlation between different stage of SPAD with grain yield.

scholarly journals Study of Yield and its Components for Several Genotypes of Durum Wheat (Triticum Durum L.) Newly Derived Under Three Seeding Rate in the Conditions of Anbar Governorate

2021 ◽  
Vol 904 (1) ◽  
pp. 012031
Author(s):  
M J H Al-Hiti ◽  
M A G Al-Ubaidi
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Rural Areas ◽  
Significant Interaction ◽  
Sandy Loam ◽  
Winter Season ◽  
Seeding Rate ◽  
Plant Densities ◽  
Loam Soil ◽  
Main Plot

Abstract A field experiment was carried out in a farmer’s field in Zakhikha which is one of the rural areas of western Heet City (about 15 kg) in Anbar Governorate, during Winter season 2020-2021, with sandy loam soil, to study seven newly derived genotypes from durum wheat, including two cultivars. They are registered, certified, and commonly cultivated in Iraq, under three seeding rate to select the ones that are suitable for the conditions of Anbar Governorate. Randomized complete blocks design (RCBD) was used in a split plot arrangement with three replications. The experiment included three Seeding rate (140, 160 and 180 kg ha-1) that represented the main plot, whereas the sub plots were occupied by seven genotypes (Latifia, Babel-30, Babel-31, Babel-32, Babel-86, and the two approved varieties Dour-29 and Dour-85). The results of the study showed that Babel-32 outperformed the rest of significant effect genotypes with highest average number of spikes (507.6 spike m-2) and grain yield (8.741 Mg ha-1), while the genotype Babel-86 was superior in weight of 1000 grain (55.89 g), and the cultivar (Dour-29) outperformed for the trait of number of grains per spike (39.15 grains spike-1). A significant effect of plant densities appeared in the studied traits, as the plants grown at seeding rate (180 kg ha-1) recorded the highest average in the trait of number of spikes m-2 (506.2 spike m-2) and grain yield (8.898 Mg ha-1) And the percentage of protein (11.89%). While planting plants at seeding rates (140 kg ha-1) led to the highest rate of number of grains per spike (38.42 grains) and 1000 grains weight (52.71 g). There was a significant interaction between genotypes and Seeding rate.

ite specific nutrient management and its effect on growth and yield of winter maize

2020 ◽  
Vol 25 (2) ◽  
pp. 2128-2136
Author(s):  
N. R. Acharya ◽  
S. K. Sah ◽  
A. K. Gautam ◽  
A. P. Regmi
Keyword(s):  
Nutrient Management ◽  
Sandy Loam ◽  
Block Design ◽  
Winter Season ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Annual Rainfall ◽  
Site Specific ◽  
Loam Soil ◽  
Fertilization Practice

An experiment was conducted on farmer’s field in Khajura, Banke for site specific nutrient management (SSNM) in hybrid maize (Rajkumar) during winter season of 2016. The climatic condition of the experimental location was humid sub-tropical and sandy loam soil occurring intense summer and severe winter. Average annual rainfall of 1000 -1500 mm occurs in the location. The experiment was replicated 4 times in Randomized complete block design having plot size of 4.8 x 3 m2. Row to row spacing was maintained at 60 cm and plant to plant at 25 cm for each plot. There were six treatments including farmers fertilization practice (27.6:27.6:18 NP2O5K2O kgha-1) as a check, recommended dose of fertilizer (160:60:40 NP2O5K2O kgha-1), site specific nutrient management (212.9:66.8:280.8 NP2O5K2O kgha-1), 75% SSNM (372.6:116.9:491.4 NP2O5K2O kgha-1), FP-N, FP-P, SSNM-K (27.6:27.6:280.8 NP2O5K2O kgha-1) and SSNM-N, FP-P, FP-K (212.9:27.6:27.6 NP2O5K2O kgha-1). Among the treatment combination; application of SSNM we can increase the yield by 193% over farmer fertilization practice. Recommended dose of fertilizer and 75 percent SSNM also increase the yield by 138% and 130.4% respectively compared to farmer fertilization practice. 88% and 53.5% more increment could also be obtained through the application of only SSNM dose of nitrogen and SSNM dose of potassium respectively over farmer fertilization practice.

Bridging yield gap of winter maize using improved agronomic management practices

2021 ◽  
Vol 4 (2) ◽  
pp. 201-210
Author(s):  
Richa Devkota ◽  
Prem Pandey ◽  
Tika Bahadur Karki ◽  
Santosh Marahatta ◽  
Shrawan Kumar Sah
Keyword(s):  
Grain Yield ◽  
Weed Management ◽  
Management Practices ◽  
Management Practice ◽  
Block Design ◽  
Research Result ◽  
Winter Season ◽  
Recommended Dose ◽  
Maize Productivity ◽  
Hybrid Maize

Appropriate combinations of inputs determine the productivity of crops. A field experiment was carried out to evaluate the effect of different combinations of inputs on the yield of winter maize at National Maize Research Program (NMRP), Rampur, Chitwan. The experiment was laid out in randomized complete block design with four replications comprising of six treatments (T1= Hybrid (H) + recommended doses of NPK (RD) + irrigation (I) + high density (HD) (83333 plant ha-1) + improved weed management practice (IWMP), T2=Open pollinated variety (OPV)+RD+I+HD+IWMP, T3=OPV+ farmer’s doses of NPK (FD)+I+HD+IWMP, T4= OPV+FD+rainfed (R)+HD+IWMP, T5=OPV+ FD+ R+low  density (LD) (55555 plant ha-1) + IWMP, T6=OPV+FD+R+LD+ farmer’s weed management practice (FWMP). The research result revealed significant variation on the grain yield among the different treatments. The highest grain yield (5357 kg ha-1) was obtained when hybrid maize was grown with recommended dose of fertilizer, higher density, irrigation and improved weed management practices. This treatment was followed by replacement of OPV in the above treatment (4410.77 kg ha-1). The decline in yield due to replacement of OPV from hybrid was 17.67 percent. The percent yield decline from full Package of practices (T1) were 23.01, 47.81, 36.66 and 35.95 when input combinations OPV+FD+I+ HD+IWMP, OPV + FD+R+HD+IWMP, OPV+FD+R+LD+IWMP and OPV+FD+R+LD+ FWMP respectively were used..The contrast for grain yield between hybrid vs. OPV, RD vs. FD and Irrigated vs. Rainfed were significant. Therefore, present investigation showed hybrid maize, recommended dose of fertilizer and irrigation were the most important inputs for improving maize productivity in winter season in Chitwan like climatic condition.

scholarly journals Growth and yield response of hybrid maize (Zea mays L.) to phosphorus levels in sandy loam soil of Chitwan Valley, Nepal

2015 ◽  
Vol 4 (2) ◽  
pp. 147-156
Author(s):  
Bandhu Raj Baral ◽  
Parbati Adhikari ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Sandy Loam ◽  
Block Design ◽  
Winter Season ◽  
Growth And Yield ◽  
Yield Response ◽  
Dry Matter Accumulation ◽  
Loam Soil ◽  
Chitwan Valley ◽  
Hybrid Maize

To evaluate the phosphorus response on winter hybrid maize, a field experiment was conducted at farm land of National Maize Research Program, Rampur, Chitwan, Nepal on 2012 and 2013. Seven levels of Phosphorus i.e. 0, 20, 40, 60, 80, 100 and 120 kg P2O5 ha-1 were applied along with 160:40 kg N:K2O ha-1. The experiment was laid out in randomized complete block design with three replications. Hybrid maize RML 32 × RML 17 was used for this study. Analysis of variance showed that plant height (cm), dry matter accumulation (g), number of kernels per row, 1000 grain weight (g) and grain yield (ton ha-1) were significantly affected with Phosphorus level. The results showed that the trend of increment was positive for grain yield with increased P level from 0 to 80 kg P2O5 ha-1. The highest grain yield (10.77 ton ha-1) was measured when 120 kg P2O5 ha-1 is applied. It is concluded that 80 kg P2O5 ha-1 can be applied in winter season for hybrid maize RML-32 × RML-17 in Chitwan valley low land irrigated condition. Further studies are necessary on different soil types, seasons, management system and varieties to get more information about the most proper addition of P on maize. DOI: http://dx.doi.org/10.3126/ije.v4i2.12634 International Journal of Environment Vol.4(2) 2015: 147-156

scholarly journals Performance evaluation of commercial maize hybrids across diverse Terai environments during the winter season in Nepal

2016 ◽  
Vol 2 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Mahendra Prasad Tripathi ◽  
Jiban Shrestha ◽  
Dil Bahadur Gurung
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
First Year ◽  
Environment Interaction ◽  
Maize Hybrids ◽  
Site Analysis ◽  
Maize Cultivars ◽  
Genotype Environment Interaction ◽  
Winter Time ◽  
Hybrid Maize

The hybrid maize cultivars of multinational seed companies are gradually being popular among the farmers in Nepal. This paper reports on research finding of 117 maize hybrids of 20 seed companies assessed for grain yield and other traits at three sites in winter season of 2011 and 2012. The objective of the study was to identify superior maize hybrids suitable for winter time planting in eastern, central and inner Terai of Nepal. Across site analysis of variance revealed that highly significant effect of genotype and genotype × environment interaction (GEI) on grain yield of commercial hybrids. Overall, 47 genotypes of 16 seed companies identified as high yielding and stable based on superiority measures. The statistical analysis ranked topmost three genotypes among tested hybrids as P3856 (10515 kg ha-1), Bisco prince (8763 kg ha-1) as well as Shaktiman (8654 kg ha-1) in the first year; and 3022 (8378 kg ha-1), Kirtiman manik (8323 kg ha-1) as well as Top class (7996 kg ha-1) in the second year. It can be concluded that stable and good performing hybrids identified as potential commercial hybrids for general cultivation on similar environments in Nepal.

Evaluation of chickpea varieties under compartmental bunding in rainfed situation

2016 ◽  
Author(s):  
S. L. Patil ◽  
N. Loganandhan ◽  
M. N. Ramesha
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Winter Season ◽  
Annual Rainfall ◽  
Conservation Practices ◽  
Net Returns ◽  
Matter Production ◽  
Production Technologies ◽  
Extension Gap

Compartmental bunding (CB) and improved chickpea varieties were evaluated in ten farmers’ fields during rainy-winter (kharif-rabi) seasons of 2012-13 in Vertisols at Bellary, India. Adopting improved chickpea varieties of BGD103 and JG11 during winter season increased the grain yields from 12.5 to 15.9%, respectively over locally cultivated A1 variety. The CB that was laid out during July (rainy season) conserved rainwater in-situ and further increased the grain yield of chickpea up to 36.7% in BGD103 and 43.9% in JG11. The increase in grain yield from 24.2% (JG11) to 27.8% (BGD103) indicates that CB is effective for in-situ rainwater conservation and improving profile soil moisture in Vertisols. However technology gap during study period was higher compared to extension gap and it was attributed to drought situation with only 81.2% of mean annual rainfall. Technology index was higher in this study and varied from 48.3% (Cultivation of BGD103 variety with CB) to 60.6% (Cultivation of JG11 variety without CB) indicating that technology index can be reduced and chickpea yields can be increased and sustained with adoption of improved chickpea production technologies including in-situ rainwater conservation practices at farmers fields. Correlation studies also indicate that grain weight, stover weight and total dry matter production per plant ultimately determine the chickpea grain and stover yields in the Vertisols of Bellary region during winter season. Higher gross and net returns with greater B:C ratio was observed with layout of farmers fields with CB and cultivation of JG11 variety.

scholarly journals Effect of weather parameters on growth stages of winter maize explain the grain yield

2021 ◽  
Vol 4 ◽  
Author(s):  
Pramod Prasad Dahal ◽  
Komal Bahadur Basnet ◽  
Shrawan Kumar Sah ◽  
Tika Bahadur Karki
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
Weather Condition ◽  
Growth Stages ◽  
Maize Crop ◽  
Maize Production ◽  
Nitrogen Levels ◽  
Seed Inoculation ◽  
Hybrid Maize ◽  
Different Growth Stages

A study was conducted on research farm of National Maize Research Program (NMRP), Rampur, Chitwan, Nepal during winter season of 2015/16 laid out in split-split plot design with three replications consisting of two FYM levels (FYM at 10 t ha-1 and no FYM application), three nitrogen levels (100, 75 and 50% N of recommended dose P and K remaining constant) and two levels of seed inoculation (Azotobacter chrococcum seed inoculation and no inoculation) with Rampur-2 maize hybrid in Nepal. One of the major factor affecting maize production is weather and this paper is prepared to assess the suitability of weather condition at different growth stages of winter season hybrid maize in condition of western Chitwan, Nepal at NMRP. The result shows that the requirement of the maize crop during different growth stages i.e. temperature, rainfall, relative humidity were fulfilled which helped to obtain remarkably higher grain yield (4.26 t ha-1) in the experiment compared to average national grain yield (2.84 t ha-1) of maize

scholarly journals Effect of deficit irrigation on yield and water productivity of sunflower in East and South-eastern coastal plains of Odisha

2021 ◽  
Vol 42 (4) ◽  
pp. 1062-1069
Author(s):  
P.K. Sahu ◽  
◽  
A.P. Sahu ◽  
P.S. Brahmanand ◽  
B. Panigrahi ◽  
...  
Keyword(s):  
Grain Yield ◽  
Deficit Irrigation ◽  
Sandy Loam ◽  
Water Productivity ◽  
Irrigation Scheduling ◽  
Cost Ratio ◽  
Coastal Plains ◽  
Area Index ◽  
Yield Attributes ◽  
South Eastern

Aim: To study the effect of deficit irrigation on yield and water productivity of sunflower in East and South eastern coastal plains of Odisha. Methodology: The present study on water productivity was undertaken using hybrid sunflower (Swathi: NSFH-145) with application of deficit irrigation having Management Allowable Deficit level of 20%, 40%, 60% and one farmers’ practice of 70% MAD level of irrigation. Growth attributes like leaf area Index, plant height, and head diameter were recorded at 20, 45, 65 and 80 days after sowing. Yield attributes like 1000 seed weight (test weight), above ground biomass and grain yield, were recorded after threshing. Results: The growth, yield and water productivity of sunflower were significantly influenced by different irrigation levels. Irrigation scheduling at 20% MAD level showed the highest grain yield, while the lowest yield was obtained from the farmers’ practice. Irrigation at 60% MAD level showed the highest water productivity when compared with farmer’s practice as it produced the highest yield per unit quantity of water application of 0.85 kg m-3 and also produced the highest average benefit to cost ratio of 2.08. Interpretation: Taking the yield, water productivity and benefit-cost ratio into account, irrigation at 60% MAD level was found to be the best. However, irrigation at 50% to 60% MAD level may be suggested for growing sunflower under water scarce conditions in sandy loam soil for increasing water productivity.

scholarly journals Assessment of Morpho-Physiological, Yield and Yield Attributing Traits Related to Post Anthesis Drought in Wheat Genotypes Under Rainfed Condition in Rampur, Chitwan

2020 ◽  
Vol 8 (3) ◽  
pp. 323-335
Author(s):  
A. Ojha ◽  
B.R. Ojha
Keyword(s):  
Grain Yield ◽  
Flag Leaf ◽  
Block Design ◽  
Winter Season ◽  
Growth Period ◽  
Grain Filling ◽  
Genotypic Effect ◽  
Rainfed Condition ◽  
Wheat Genotypes ◽  
Genotypic Effects

A set of twenty wheat (Triticum aestivum L.) genotypes was evaluated to assess morpho-physiological, yield and yield attributing traits related to post-anthesis drought in wheat genotypes under rainfed condition in a Randomized completely block design with three replications at research farm of Faculty of Agriculture, Rampur, Chitwan, during winter season of 2016/2017. The result revealed highly significant genotypic effects for number of tillers per m2 area, plant height, spike length, number of grains per spike, weight of grains per spike, 1000 kernels weight, days to booting, days to heading, days to anthesis, days to flag leaf senescence, days to maturity, SPAD meter reading, peduncle length, grain filling duration and reproductive growth period. Significant genotypic effects were found for grain yield, biological yield and harvest index and an array of variation was found among the genotypes for each trait. But non-significant genotypic effect was found for canopy temperature depression. WK2373 gave highest grain yield kg/ha (3035 kg/ha) and biomass yield kg/ha (8080 kg/ha). This study presented WK2373, WK2379, WK2380, WK2386, WK2388, WK2383, WK 2378 and WK1481 the best genotypes governing different valuable traits. These potential genotypes for valuable traits found in different clusters. Crossing genotypes belonging to different clusters could maximize the opportunities for transgressive segregation as there is a higher probability that unrelated genotypes would contribute unique desirable alleles at different loci.  Therefore, this study can help breeders to increase genetic diversity by selecting materials of divergent parentage for crosses, thereby reducing vulnerability to diseases and climate changes.  Int. J. Appl. Sci. Biotechnol. Vol 8(3): 323-335

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