Maize Grain Yield Response to Tillage and Fertilizer Nitrogen Rates on a Tara Silt Loam

SUMMARYCorrect placement of side dress nitrogen (N) fertilizer could increase nitrogen use efficiency (NUE) and maize yield production. Field studies were established to evaluate application of midseason (V8 to V10), variable liquid urea ammonia nitrate (28%), N rates (0, 45, 90 and 134 kg N ha−1) and different application distances (0, 10, 20 and 30 cm) away from the maize row on grain yield and NUE at Haskell and Hennessey in 2009, Efaw in 2010 and Lake Carl Blackwell, Oklahoma in 2009 and 2010. A randomized complete block design with three replications was used throughout the study. Results indicated that maize grain yield in sites with adequate rainfall increased significantly (p < 0.05) with N rate, and poor N response was recorded in sites with low rainfall. Across sites and seasons, varying side dress N application distance away from the maize row did not significantly (p < 0.05) influence maize grain yield and NUE even with no prep-plant applied. Environments with adequate rainfall distribution had better maize grain yields when high side dress N rates (90 and 134 kg N ha−1) were applied 0 to 10 cm, and a higher NUE when 45 kg N ha−1 was applied 0 to 20 cm away from the maize row. For low N rates (45 kg N ha−1), increased maize grain yield and NUE were achieved when side dress N was applied 0 to 20 cm away from the maize row at locations with low rainfall distribution. Across sites and seasons, increasing side dress N to 134 kg N ha−1 contributed to a general decline in mean NUE to as low as 4%, 35%, 10%, 51% at Hennessey, Efaw, LCB (2009) and LCB (2010) respectively.

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Economically Optimal Rate for Nutrient Application to Maize in the Semi-deciduous Forest Zone of Ghana

Journal of soil science and plant nutrition ◽

10.1007/s42729-020-00240-y ◽

2020 ◽

Vol 20 (4) ◽

pp. 1703-1713 ◽

Cited By ~ 1

Author(s):

Benedicta Essel ◽

Robert Clement Abaidoo ◽

Andrews Opoku ◽

Nana Ewusi-Mensah

Keyword(s):

Grain Yield ◽

Deciduous Forest ◽

Mineral Fertilizer ◽

Fertilizer Application ◽

Application Rate ◽

Yield Response ◽

N Recovery ◽

Forest Zone ◽

Maize Grain Yield ◽

Maize Grain

Abstract Low inherent nitrogen (N), phosphorus (P), and potassium (K) contents of smallholder farms limit maize grain yield. Maize grain yield response to N, P, and K mineral fertilizer application and economically optimal rates for nitrogen (EORN), phosphorus (EORP), and potassium (EORK) were evaluated on a Ferric Acrisol within the semi-deciduous forest zone of Ghana. The nutrient rates evaluated were N (0, 30, 60, 90, and 120 kg N ha−1), P (0, 30, 60, and 90 kg ha−1 P2O5), and K (0, 30, 60 and 90 kg ha−1 K2O). The treatments were arranged in a randomized complete block with three replications using an incomplete factorial design. Nutrient responses were determined using asymptotic quadratic-plus plateau functions. The best nitrogen rate for all P and K levels was 60 kg ha−1, which gave grain yield of 5 t ha−1. Nitrogen uptake, N agronomic and N recovery efficiencies peaked at 60 kg N ha−1 while N partial factor productivity declined with increasing N application rate. Cost to grain price ratios (CP) were 1.29, 1.65, and 1.65 for N, P, and K, respectively. The EORN was 61 kg ha−1, 32% less than the recommended 90 kg N ha−1 for maize production in the semi-deciduous forest zone of Ghana. Nitrogen application had the lowest CP ratio, making its application economically profitable than P and K. The findings suggest that the application of N at 61 kg N ha−1 to maize is economically profitable than at higher application rates. However, further studies should be conducted on farmers’ fields to validate the results obtained.

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Yam tuber and maize grain yield response to cropping system intensification in south-west Nigeria

Archives of Agronomy and Soil Science ◽

10.1080/03650340.2017.1404580 ◽

2017 ◽

Vol 64 (7) ◽

pp. 953-966 ◽

Cited By ~ 2

Author(s):

Rebecca Oiza Enesi ◽

Stefan Hauser ◽

Antonio Lopez-Montez ◽

Oluwole Osonubi

Keyword(s):

Grain Yield ◽

Cropping System ◽

Yield Response ◽

Maize Grain Yield ◽

South West ◽

Maize Grain

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Effect of Foliar Micronutrients (B, Mn, Fe, Zn) on Maize Grain Yield, Micronutrient Recovery, Uptake, and Partitioning

Plants ◽

10.3390/plants10030528 ◽

2021 ◽

Vol 10 (3) ◽

pp. 528

Author(s):

Zachary P. Stewart ◽

Ellen T. Paparozzi ◽

Charles S. Wortmann ◽

Prakash Kumar Jha ◽

Charles A. Shapiro

Keyword(s):

Grain Yield ◽

Foliar Application ◽

Micronutrient Deficiency ◽

Yield Response ◽

Growth Stages ◽

Application Time ◽

Variable Effect ◽

Maize Grain Yield ◽

Micronutrient Uptake ◽

Maize Grain

Timing of micronutrient demand and acquisition by maize (Zea mays L.) is nutrient specific and associated with key vegetative and reproductive growth stages. The objective of this study was to determine the fate of foliar-applied B, Fe, Mn, Zn, and Fe/Zn together, evaluate the effect of foliar micronutrients applied at multiple rates and growth stages on maize grain yield, and determine their apparent nutrient recovery efficiency (ANR). Five Randomized Complete Block Design (RCBD) experiments were conducted in 2014 and 2015 at five locations across Nebraska. Total dry matter was collected at 5–6 stages, and separated into leaves, stalk, and reproductive tissue as appropriate to determine micronutrient uptake, partitioning, and translocation. Foliar B, Mn, Zn, and Fe/Zn had no effect on grain yield for most application time by rate levels, though, at the foliar Mn site, there was a 19% yield increase due to a V18 application of 0.73 kg Mn ha−1 which corresponded with reduced Mn uptake in maize grown in control plots. At the foliar Zn site, there was 4.5% decrease in yield due to a split foliar application of 0.84 kg Zn ha−1 total, applied at V11 and V15 stage, which increased leaf Zn concentrations greater than the established toxic level. Only the Fe site had consistent grain yield response and was the only experiment that had visual signs of micronutrient deficiency. Regardless of application time from V6 to R2, there was a 13.5–14.6% increase in grain yield due to 0.22 kg Fe ha−1 foliar application. Most micronutrients had limited or no translocation, however, early season applications of B, prior to V10, had significant mobilization to reproductive tissues at or after VT. Foliar Mn, Zn, and B application had ANR LSmeans of 9.5, 16.9, and 2.5%, respectively, whereas the Fe/Zn mix had negative ANR LSmeans of −9.1% Fe and −1.3% Zn which indicate suppression. These data highlight the importance of confirming a micronutrient deficiency prior to foliar application, guide specific growth stages to target with specific micronutrients, track the fate of foliar-applied micronutrients, and describe the variable effect of foliar-applied micronutrients on grain yield.

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Maize Response to Trinexapac-Ethyl and Nitrogen Fertilization

Planta Daninha ◽

10.1590/s0100-83582020380100037 ◽

2020 ◽

Vol 38 ◽

Author(s):

L. SANGOI ◽

M.M. DURLI ◽

C.A. SOUZA ◽

L.S. LEOLATO ◽

H.F. KUNESKI ◽

...

Keyword(s):

Grain Yield ◽

Dry Weight ◽

Yield Response ◽

Growing Seasons ◽

Application Rates ◽

Stem Internode ◽

Maize Grain ◽

South Of Brazil ◽

Nitrogen Rates ◽

Maize Response

ABSTRACT: High nitrogen rates favor maize vegetative growth and grain yield losses due to stem lodging. The use of growth regulators can mitigate such effect. This work was carried out aiming to evaluate the effect of trinexapac ethyl on maize hybrids response to side-dress nitrogen rates. The experiment was carried out in Lages, Santa Catarina State, South of Brazil, during two growing seasons with two hybrids (P1680 and P30F53), and four nitrogen rates (0, 150, 300 and 450 kg N ha-1) were tested, with and without the presence of trinexapac ethyl. The experimental design was in randomized blocks arranged in split-split plots, with three replications per treatment. The plants height and ear insertion height, plant lodging and breaking, grain yield and yield components were evaluated. Grain yield increased in a quadratic way with increased nitrogen rate. The highest grain yields were 15,784 and 15,257 kg ha-1, in 2014/15 and 2015/16, respectively. Application rates higher than 150 kg of N ha-1, regardless of the use of the plant growth regulator, promoted maximum grain yield increases, ranging from 14.7 to 18.1%. The application of trinexapac-ethyl reduced the upper stem internode length, 1000-grain dry weight and did not affect the percentage of lodged plants and grain yield of both hybrids. Therefore, the use of trinexapac-ethyl did not enhance the maize grain yield response to increased rates of side-dress nitrogen.

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Full-Season Retrospectives on Causes of Plant-to-Plant Variability in Maize Grain Yield Response to Nitrogen and Tillage

Agronomy Journal ◽

10.2134/agronj14.0173 ◽

2014 ◽

Vol 106 (5) ◽

pp. 1746-1757 ◽

Cited By ~ 5

Author(s):

Péter Kovács ◽

Tony J. Vyn

Keyword(s):

Grain Yield ◽

Yield Response ◽

Maize Grain Yield ◽

Maize Grain

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Yield Response and Nutrient Use Efficiencies under Different Fertilizer Applications in Maize (Zea mays L.) In Contrasting Agro Ecosystems

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2019/v29i330141 ◽

2019 ◽

pp. 1-19 ◽

Cited By ~ 2

Author(s):

Tesfaye Balemi ◽

Jairos Rurinda ◽

Mesfin Kebede ◽

James Mutegi ◽

Gebresilasie Hailu ◽

...

Keyword(s):

Grain Yield ◽

Moisture Stress ◽

Climatic Conditions ◽

Yield Response ◽

N Application ◽

High Rainfall ◽

Maize Grain Yield ◽

Nutrient Use ◽

Maize Grain ◽

Nutrient Use Efficiencies

Variability in crop response and nutrient use efficiencies to fertilizer application is quite common under varying soil and climatic conditions. Understanding such variability is vital to develop farm- and area- specific soil nutrient management and fertilizer recommendations. Hence the objectives of this study were to assess maize grain yield response to nutrient applications for identifying yield-limiting nutrients and to understand the magnitude of nutrient use efficiencies under varying soil and rainfall conditions. A total of 150 on-farm nutrient omission trials (NOTs) were conducted on farmers’ field in high rainfall and moisture stress areas. The treatments were control, PK, NK, NP, NPK and NPK+ secondary and micronutrients. Maize grain yield, nutrient uptake, agronomic and recovery efficiencies of N and P differed between fertilizer treatments and between the contrasting agro-ecologies. The AEN ranged from 24.8 to 32.5 kg grain kg-1 N in Jimma area and from 1.0 kg grain kg-1 N (NK treatment) to 10.2 kg grain kg-1 N (NPK treatment) at Adami Tullu and from 0.1 kg grain kg-1 N (NK treatment) to 8.3 kg grain kg-1 N (NPK treatment) at Bulbula. The differing parameters between the agro-ecologies were related to difference in rainfall amount and not to soil factors. Grain yield response to N application and agronomic efficiencies of N and P were higher in the high rainfall area than in the moisture stress areas. Grain yield responded the most to nitrogen (N) application than to any other nutrients at most of the experimental sites. Owing to the magnificent yield response to N fertilizer in the current study, proper management of nitrogen is very essential for intensification of maize productivity in most maize growing areas of Ethiopia.

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