scholarly journals Validation of NP Fertilizer Rates on Medium Maturing Maize Varieties at Jimma, South Western Ethiopia

2020 ◽  
Keyword(s):  
Maize Varieties ◽  
Fertilizer Rates ◽  
Western Ethiopia ◽  
Np Fertilizer

scholarly journals Nitrogen Use Efficiency and Yield of Maize Varieties as affected by Nitrogen rate in Mid Altitude Areas of Western Ethiopia

2019 ◽  
Author(s):  
Tolera Abera Goshu ◽  
Dagne Wegary Gissa ◽  
Tolessa Debele Dalessa
Keyword(s):  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Use ◽  
Agronomic Efficiency ◽  
Maize Varieties ◽  
Use Efficiency ◽  
Fertilizer Rates ◽  
Western Ethiopia

Maize (Zea mays L.) is the most widely grown important crop in mid altitude areas of intensive maize-based cropping system of western Ethiopia. Agronomic management is the most important input for getting potential yield and high net returns in hybrid maize production. A field experiment was carried out on farmers’ field to find out the effect of varieties (four maize) and nitrogen fertilizer rate (55, 110 kg N ha-1) with one control on yield components and nitrogen use efficiency of different maize varieties in 2013 and 2014 cropping season. It was laid with randomized complete block design in factorial arrangement with three replications. Mean grain yield, thousand seed weight, dry biomass and harvest index of maize varieties were significantly differed among farms and varieties of maize. Application of nitrogen fertilizer rates was significantly increased mean grain yield maize varieties. Interaction of maize varieties with nitrogen fertilizer rates was significantly affected all yield components of maize varieties. Application half and full recommended nitrogen fertilizer gave mean grain yield advantages of 31 and 41 % over control maize varieties planted without nitrogen application. Maize varieties producing higher mean grain yield was also giving higher mean dry biomass. Mean nitrogen up take was varied from 225 to 357 kg ha-1 among varieties of maize. Higher agronomic efficiency of all maize varieties was obtained from maize planted with application half recommended nitrogen fertilizer compared to full recommend. Agronomic efficiency was ranged from 18 to 33 produced among maize varieties. Significantly higher nitrogen up take efficiency of maize varieties was achieved from maize planted with full recommended nitrogen fertilizer application. Considerably higher nitrogen use efficiency of maize varieties was realized from all maize varieties planted with application half recommended nitrogen fertilizer. Application of half recommended nitrogen fertilizer was gave 32 % fertilizer N use efficiency advantage as compared to full recommended nitrogen fertilizer. Maize varieties BH-661>BH-660> BH-543>BH-540>BH-140 were desirable varieties for further promotion work and use by smallholder farmers in mid altitude area of western Ethiopia.

scholarly journals Effects of Varieties and Nitrogen Fertilizer on Yield and Yield Components of Maize on Farmers Field in Mid Altitude Areas of Western Ethiopia

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Tolera Abera ◽  
Tolessa Debele ◽  
Dagne Wegary
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Block Design ◽  
Area Index ◽  
Maize Varieties ◽  
Yield And Yield Components ◽  
Fertilizer Rates ◽  
Western Ethiopia

Yield of maize hybrids could be low when grown below optimum management practices. Use of improved varieties and optimum nitrogen fertilizer application practices are unlocking the high yielding potential of hybrids maize. With these in view, a field experiment was executed on farmers’ field to determine the effect of varieties and nitrogen fertilizer rate on yield and yield components of maize in two cropping seasons. It is laid out with randomized complete block design in factorial arrangement with three replications. Five maize varieties (BH-540, BH-543, BH-661, BH-660, and BH-140) as main factor and two levels of nitrogen (55 and 110 Kg N ha−1) as subfactor were used with one maize variety (BH-543) without fertilizer as control. Leaf area and leaf area index of maize varieties were significantly affected by application of nitrogen fertilizer rates. Interaction of maize varieties with nitrogen fertilizer rates significantly affected all yield and yield components of maize. Application of half and full recommended nitrogen fertilizer produced mean grain yield advantages of 31 and 41% over control. Therefore, application of half and full recommended nitrogen fertilizer for improved maize varieties has significantly improved grain yield and recommended for maize production in midaltitude area of western Ethiopia.

scholarly journals EFFECT OF TRANSPLANTING METHODS, NP- FERTILIZER RATES ON LEAF LENGTH OF FEMALE DATE PALM (PHOENIX DACTYLIFERA L.) OFFSHOOT

2020 ◽  
Vol 4 (2) ◽  
pp. 532-537
Author(s):  
M. S. Isyaku ◽  
Haruna Yakubu ◽  
A. M. Muhammad ◽  
A. M. Hamza ◽  
M. I. Zamfara
Keyword(s):  
Date Palm ◽  
Block Design ◽  
Phoenix Dactylifera ◽  
Leaf Length ◽  
Ecological Zone ◽  
Phoenix Dactylifera L ◽  
Randomized Complete Block Design ◽  
Sudan Savanna ◽  
Fertilizer Rates ◽  
Np Fertilizer

ABSTRACT Studies on the effect of transplanting methods and NP – fertilizer rates on leaf length of a female date palm offshoot have been conducted over a period of 25 months (September, 2017 – September 2019). The trial was sited at the Date Palm Research Sub – station/ Federal University Dutse (11o50’N, 09o25’E) in the Sudan Savanna ecological zone of Nigeria.  The treatments consisted of two transplanting methods (Direct: detachment of offshoot from the parent palm and directly transplanting into the field, and Indirect: detachment of offshoot from the parent palm and keeping in the nursery for 3 months before transplanting into the field) and five NP fertilizer rates Control (0g N + 0g P), 80g N + 40g P, 160g N + 80g P, 240g N +120g P and 320g N + 160g P) arranged in a randomized complete block design with three replications. Indirect transplanting of date palm through nursery proved more effective than direct transplanting as it produces statistically longer leaves which are an indication of better chances of crop survival, establishment and yield. Rate 320g N +160g P statistically outperformed other rates in the production of longer leaves throughout the sampling periods. Interaction between transplanting methods and fertilizer rates was highly significant in most of the sampled periods except in June and September, 2019. A combination of indirect transplanting method with rate 320g N +160g P that produced longer leaves is recommended for adoption  in the Sudan Savannah ecological zone of Nigeria.

scholarly journals EFFECT OF TRANSPLANTING METHODS, NP- FERTILIZER RATES ON CANOPY WIDTH OF FEMALE DATE PALM (PHOENIX DACTYLIFERA L.) OFFSHOOT

2020 ◽  
Vol 4 (2) ◽  
pp. 519-522
Author(s):  
M. S. Isyaku ◽  
Haruna Yakubu ◽  
A. M. Muhammad ◽  
A. M. Hamza ◽  
M. I. Zamfara
Keyword(s):  
Date Palm ◽  
Block Design ◽  
Phoenix Dactylifera ◽  
Ecological Zone ◽  
Phoenix Dactylifera L ◽  
Randomized Complete Block Design ◽  
Sudan Savanna ◽  
Fertilizer Rates ◽  
Np Fertilizer

Studies on the effect of transplanting methods and NP – fertilizer rates on canopy width of a female date palm offshoot have been conducted over a period of 25 months (September, 2017 – September 2019). The trial was sited at the Date Palm Research Sub – station/ Federal University Dutse (11o50’N, 09o25’E) in the Sudan Savanna ecological zone of Nigeria. The treatments consisted of two transplanting methods (Direct: detachment of offshoot from the parent palm and directly transplanting into the field, and Indirect: detachment of offshoot from the parent palm and keeping in the nursery for 3 months before transplanting into the field) and five NP fertilizer rates Control (0g N + 0g P), 80g N + 40g P, 160g N + 80g P, 240g N +120g P and 320g N + 160g P) arranged in a randomized complete block design with three replications. Canopy width was measured and recorded at three months’ interval starting from September, 2017 to September 2019. Indirect transplanting of date palm through nursery proved more effective than direct transplanting as it produces statistically wider canopies in all the sampled periods. Rate 320g N +160g P statistically outperformed other rates in promoting wider canopies throughout the sampling periods. A combination of indirect transplanting method with rate 320g N +160g P that produced wider canopies is recommended for adoption  in the Sudan Savannah ecological zone of Nigeria.

scholarly journals Growth, Yield-Related Traits and Yield of Lowland Maize (Zea mays L.) Varieties as Influenced by Inorganic NPS and N Fertilizer Rates at Babile, Eastern Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Mekuannet K. Belay
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Growth Yield ◽  
Growing Season ◽  
N Fertilizer ◽  
Marginal Rate ◽  
Eastern Ethiopia ◽  
Budget Analysis ◽  
Maize Varieties ◽  
Fertilizer Rates

Appropriate selection of varieties based on agroecologies and application of the right amount and type of fertilizers based on crop requirements are crucially indispensable to maximize maize production. A field experiment was conducted for two consecutive years under main cropping seasons to evaluate the effect of blended NPS and N fertilizer rates on growth, yield components, and yield of open-pollinated maize varieties at the moisture stress area, eastern Ethiopia. The experiment was comprised of two lowland maize varieties, three blended NPS (50, 100, and 150 kg), and three N levels (43.5, 87, and 130.5 kg) ha−1 using a factorial arrangement under a randomized complete block design with three replications. The results showed that the leaf area index, thousand kernel weight, and biomass and grain yields were significantly influenced by the interaction effect of variety × NPS and N in the first growing season. The number of ears per plant, ear length, ear diameter, number of kernels per ear, and biomass yield were significantly affected due to variety in the second growing season. The maximum growth parameters and yield components were recorded from Baate and 150 kg blended NPS. Grain yield and harvest index were statistically affected by interaction effects of variety × NPS and N in both years. Therefore, the highest grain yield (9.7 t·ha−1) was produced from Baate at a combined application of 150 kg NPS and 130.5 kg N·ha−1. The partial budget analysis also confirmed that the highest net benefit (2,033.4 USD) with the highest marginal rate of return (3106.9%) was obtained at Baate variety where plants were fertilized with 150 NPS and 130.5 kg N·ha−1. In conclusion, an integrated application of 150 NPS + 130.5 kg N·ha−1 to Baate variety is agronomically optimum and economically realistic fertilizer level to get a higher grain yield in the study area.

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