Urea Split Application to Maize (Zea mays L.) Growth Stages of Medium Maturities, Influenced on Grain Yield and Parameter for Yield at Bako, East Wollega, Ethiopia

IF 1.5 Q2 AGRONOMY International Journal of Agronomy Pub Date : 2023-12-06 DOI:10.1155/2023/6673773
Megersa Debele, Belay Taressa
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Abstract

Appropriate timing of application can improve crop nutrient consumption efficiency. Maize production is still significantly below than its potential output, even though it is comparatively better than other main cereal crops. One of the main abiotic variables affecting crop growth is the timing of urea split application. Due to these gaps, an experiment was carried out at the Bako Agricultural Research Center during the 2019 and 2020 cropping seasons in order to ascertain the best time to apply urea split in order to maximize the yield and yield attributes of the maize varieties BH-546 and BH-547 in a study area and in countries with comparable agroecologies. Six levels of urea split application time (T1, T2, T3, T4, T5, and T6) were arranged in factorial combinations with two levels of maize varieties. In addition, a randomized complete block design with three replications was used for the previously advised urea split application. The harvest index of maize, grain yield, number of kernels per ear, ear dimension, and number of ears per plant all significantly differed depending on when nitrogen split administration occurred. Mean dry biomass, cob diameter, cob length, cob weight, and thousands seed weight of maize were all highly impacted by the interaction varietals and split time of nitrogen treatment. Compared to the previously recommended (1/2 dose at planting and 1/2 dose at knee height stage of maize), the time of N split application resulted in a significantly higher grain yield (9003.88 kg·ha−1): 1/4 dose at planting + 1/2 dose of N at knee height + 1/4 dose at tasseling of maize. However, three urea application regimes 1/4 dosage at planting time, 1/2 dose at knee height, and 1/4 dose of split application should be utilized in the event of irregular and intensely rainy seasons in order to maximize grain output and yield attributable.
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埃塞俄比亚东沃勒加地区巴科玉米(Zea mays L.)中熟期生长阶段尿素分施对谷物产量和产量参数的影响
适时施用可提高作物养分消耗效率。尽管玉米产量相对好于其他主要谷类作物,但仍显著低于其潜在产量。影响作物生长的主要非生物变量之一是尿素分施的时机。由于存在这些差距,在Bako农业研究中心于2019年和2020年种植季进行了一项试验,以确定施用尿素分裂的最佳时机,以便在研究区和具有可比农业生态的国家最大限度地提高玉米品种BH-546和BH-547的产量和产量属性。将6个水平的尿素分施时间(T1、T2、T3、T4、T5和T6)按2个水平玉米品种的因子组合排列。此外,采用三个重复的随机完全区组设计,用于先前建议的尿素分裂应用。不同施氮时间,玉米的收获指数、产量、穗粒数、穗维数和单株穗数均有显著差异。意味着干生物量、穗轴直径、穗轴长度、穗轴重,数以千计的种子重量的玉米都是高度交互品种和分裂的影响氮化处理。与之前推荐的(播种期1/2施氮量和玉米膝部高期1/2施氮量)相比,分施1/4施氮量(播种期1/4施氮量+玉米膝部高期1/2施氮量+玉米抽雄期1/4施氮量)显著提高了玉米产量(9003.88 kg·ha - 1)。然而,在不规则和强雨季,应采用播种时1/4剂量、膝高时1/2剂量和分次施用1/4剂量的尿素施用方案,以最大限度地提高粮食产量和产量。
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来源期刊
CiteScore
3.60
自引率
5.30%
发文量
66
审稿时长
16 weeks
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