埃塞俄比亚北部谢拉罗地区雨养条件下施用NPK和混合肥料对高粱(Sorghum bicolor(L.)Moench)品种养分吸收和利用效率的影响

IF 0.3 Q4 MULTIDISCIPLINARY SCIENCES Momona Ethiopian Journal of Science Pub Date : 2018-05-17 DOI:10.4314/MEJS.V10I1.10
Redai Weldegebriel, T. Araya, Yemane G. Egziabher
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引用次数: 15

摘要

高粱(Sorghum bicolor(L.)Moench)是第三世界半干旱小规模农业社区的重要谷物作物和稳定食物。尽管它高度适应不同的农业生态条件,但其产量受到不同因素的制约,包括土壤肥力下降和肥料利用不当。本文介绍了Shire Mytsebri农业研究中心Sheraro分中心在2016年主要种植季节进行的研究结果。目的是研究NPK的作用;以及混合肥料对氮、磷和钾吸收的影响;以及所选高粱品种的养分利用效率。处理由十个水平的肥料的因子组合组成,包括最近推荐的[N,P,Blanket推荐(NP),NPK,NPS,NPKS,NPKSZn,NPKSZnB,NPKSZnB(农业转型机构后,ATA)和对照(0)]。两个高粱品种(Melkam和Dekeba)在因子随机完全块设计中进行了三次重复试验。数据是使用四个农艺指标计算的,这四个指标通常用于描述养分(N、P和K)的吸收和利用效率。结果表明,肥料处理和高粱品种对所研究的大多数参数都有显著的交互作用。施用NPKSZn复合肥可显著提高养分吸收和利用效率。施用含NPKSZn的肥料处理后,麦甘品种的总氮(78.70 kg ha-1)、磷(51.19 kg ha-)和钾(74 kg ha-。对主要营养元素的吸收增加确保了高粱正常生长和高产所需的充足营养。因此,大量营养素与微量营养素的结合应用提高了高粱产量,同时提高了研究中使用的高粱品种的氮、磷、钾吸收和营养利用效率。因此,建议在研究区和其他类似地区使用混合肥料41N-46P-13.7K-9.25S-1.7Zn kg ha-1以获得更高的产量。
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Effect of NPK and Blended Fertilizer Application on Nutrient Uptake and Use Efficiency of Selected Sorghum (Sorghum bicolor (L.) Moench) Varieties Under Rain-fed Condition in Sheraro District, Northern Ethiopia
Sorghum (Sorghum bicolor (L.) Moench) is an important cereal crop and stable food for the semi-arid small scale farming communities in the third world. Even though, it is highly adapted to different agro-ecological conditions, its yield is constrained by different factors including declining soil fertility and improper utilization of fertilizer. Results of the research conducted in Shire-Mytsebri Agricultural Research Center at Sheraro sub-site during the main cropping season of 2016 are presented in the paper. The aim was to investigate the effect of NPK; and blended fertilizer on nitrogen, phosphorus, and potassium uptake; and nutrient use efficiency of selected sorghum varieties. The treatments are comprised of factorial combination of ten levels of fertilizers including the recently recommended [N, P, Blanket recommendation (NP), NPK, NPS, NPKS, NPKSZn, NPKSZnB, NPKSZnB (after Agricultural Transformation Agency, ATA) and Control (0)]. Two sorghum varieties (Melkam and Dekeba) were tested in a Factorial Randomized Complete Block Design with three replications. The data were computed using four agronomic indices, which are commonly used to describe nutrient (N, P and K) uptake and use efficiency. The results indicate that there is a significant interaction effect of fertilizer treatments and sorghum varieties on majority of the parameters studied. Application of NPKSZn blended fertilizer significantly enhanced nutrient uptake and use efficiency. The highest total N (78.70 kg ha-1), P (51.19 kgha-1) and K (74 kg ha-1) uptake and use efficiency in Melkam variety treated by fertilizer contained NPKSZn brought higher yield (5541 kg ha-1). Increasing uptake of the major nutrient elements ensured ample nutrient availability for normal growth and high yield of sorghum. Thus, application of macronutrients in combination with micronutrients increased sorghum yield and concomitantly improved N, P and K uptake, and nutrient use efficiency for the sorghum varieties used in the study. Therefore, it is recommended that in the study area and other similar areas blended fertilizer 41N-46P-13.7K-9.25S-1.72Zn kg ha-1 be used to achieve higher yields.
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来源期刊
Momona Ethiopian Journal of Science
Momona Ethiopian Journal of Science MULTIDISCIPLINARY SCIENCES-
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13
审稿时长
12 weeks
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