Bridging the yield gaps of bread wheat at a scale through an innovative method of lime application in the acidic soils of Northwestern Ethiopia

Demil, Asmamaw; Amare, Tadele; Awoke, Yihenew; Derebe, Assefa; Adera, Tilahun; Yıldız, Fatih

doi:10.1080/23311932.2020.1803578

Cited by 6 publications

(6 citation statements)

References 21 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our finding agreed with Demil et al. (2020) who showed that liming with the recommended rate of NP fertilizer significantly increased wheat yield in acidic soils of Machakel district. The lime amendment had also reclaimed the soil pH, which increased the nutrient availability to the grown crops.…”

Section: Discussionsupporting

confidence: 93%

Identifying limiting nutrient(s) for better bread wheat and tef productivity in acidic soils of north‐west Amhara, Ethiopia

Bazie,

Amare,

Alemu

et al. 2024

Agrosystems Geosci & Env

Self Cite

View full text Add to dashboard Cite

Food crop productivity is still low because of the decline of soil fertility in Ethiopia, particularly in north‐western Amhara. Fine‐tuning the source and rate of nutrients is required to solve soil fertility problems along landscape positions. Therefore, this study was initiated to investigate the need to apply selected nutrients to tef and wheat in acidic soils. This nutrient omission study was conducted in 74 farmers’ fields of Gozamen and Machakel districts. The omitted nutrients were sulfur (S), zinc (Zn), and boron (B). Potassium (K) was added, consisting of N, P, K, S, Zn, and B (All+K). Nitrogen plus phosphorus (NP) and no fertilizer treatments were used as positive and negative controls, respectively. Furthermore, 50% and 150% of the All+K treatments were also included. The finding revealed that the application of different nutrient types at variable rates had a significant role in the grain and biomass yield of both test crops in the acidic soils. No tef yield and the lowest yield of bread wheat were obtained from the no fertilizer application treatment. The application of All+K had no significant yield advantage compared to NP fertilizer alone. This implies that N and P are the most yield‐limiting nutrients to produce tef and bread wheat, whereas KSZnB nutrients are not yield limiting. Therefore, refining the rates of N and P in acidic soils is needed for the economical use of fertilizers. Finally, applying blended fertilizers without empirical evidence is not recommended for smallholder farmers in the study area.

show abstract

Section: Discussionsupporting

confidence: 93%

Identifying limiting nutrient(s) for better bread wheat and tef productivity in acidic soils of north‐west Amhara, Ethiopia

Bazie,

Amare,

Alemu

et al. 2024

Agrosystems Geosci & Env

Self Cite

View full text Add to dashboard Cite

show abstract

“…concentration (Abate et al 2017). Demil et al (2020) also reported over 4 centimol kg -1 exchangeable acidity of soil in neighboring Machakel district.…”

Section: Introductionmentioning

confidence: 85%

“…Although the Amhara region in northern Ethiopia used to be a high potential area for wheat, barley, and faba bean production, crop productivity has significantly decreased in these highlands to the level that significant numbers of farmers are slowly abandoning cereal farming (Demil et al 2020). Various interventions, including application of lime, have been found to be effective in minimizing the negative effects of soil acidity (Agegnehu et al 2018;Golla 2019), but lime is not readily available to farmers at the required amount and affordable price.…”

Section: Introductionmentioning

confidence: 99%

Remediation of acid soils and soil property amelioration via Acacia decurrens-based agroforestry system

et al. 2022

Self Cite

View full text Add to dashboard Cite

Land degradation and the associated soil acidity are critical challenge for crop production in Ethiopian highlands. Since liming is expensive, farmers have developed an alternative agroforestry system by integrating Acacia decurrens into their landscapes. The expansion rate of this system was assessed over the last three decades. The effects of the agroforestry system and charcoal-making kiln sites on soil properties were investigated for over five years compared to the adjacent croplands. Soil samples were collected from A. decurrens plantations, kiln sites, and adjacent croplands at 0-15 and 15-30 cm soil depths. In the last 30 years, the plantation and croplands increased by 8% and 17.5%, respectively, compared to the land-use system in 1993, mainly at the expense of grassland and abandoned land. The main incentive for expansion of A. decurrens plantations was farmers' income generated from charcoal making. This intervention also improved soil properties with a significantly positive effect on soil pH, soil organic carbon (SOC), cation exchange capacity (CEC), and available Bray phosphorus (Bray-P) compared to the adjacent croplands. Results revealed that the SOC content in year 2 increased significantly (1.3-1.7 times) under A. decurrens plantation compared to adjacent crop fields. Moreover, soil pH increased by one unit on charcoalmaking fields, which was equivalent to application of 4-5 t lime ha -1 , while SOC increased by * 10% on kiln sites compared to the control. Charcoal making kiln spots increased available soil phosphorus by 112% compared to the adjacent non-kiln sites. The Bray-P was strongly and significantly (P \ 0.05) correlated (r = 0.75) with soil pH. We conclude that integrating A. decurrens-based agroforestry practices would improve livelihoods by restoring degraded lands, improving income generation and carbon sequestration.

show abstract

“…In Debre Elias and Wonberema, the rain fall increased from 2014 to 2015 by 71.43% and 14.29%, respectively, while at Adet it was relatively constant across years. At Adet the soil textural class is clay [ 35 ] while at Wonberema [ 36 ] and Debre Elias [ 37 ] the soil textural class is sandy loam. The experimental site at Adet constitutes an average pH of 5.4, organic carbon of 2.47%, total nitrogen of 0.8%, available phosphorus of 1.98 ppm and cation exchange capacity of 31.2 Cmole(+) kg -1 [ 35 ] while the respective soil nutrients at Debre Elias were 5.12, 2.63%, 0.14%, 2.53 ppm and 25.02 Cmole(+) kg -1 [ 37 ].…”

Section: Methodsmentioning

confidence: 99%

“…At Adet the soil textural class is clay [ 35 ] while at Wonberema [ 36 ] and Debre Elias [ 37 ] the soil textural class is sandy loam. The experimental site at Adet constitutes an average pH of 5.4, organic carbon of 2.47%, total nitrogen of 0.8%, available phosphorus of 1.98 ppm and cation exchange capacity of 31.2 Cmole(+) kg -1 [ 35 ] while the respective soil nutrients at Debre Elias were 5.12, 2.63%, 0.14%, 2.53 ppm and 25.02 Cmole(+) kg -1 [ 37 ]. At Wonberema, pH, organic carbon, total nitrogen and available phosphorus were 5.72, 3.1%, 0.3%, 3.69 ppm, respectively [ 36 ].…”

Section: Methodsmentioning

confidence: 99%

Optimizing time and split application of nitrogen fertilizer to harness grain yield and quality of bread wheat (Triticum Aestivum L.) in northwestern Ethiopia

et al. 2022

View full text Add to dashboard Cite

Improper nitrogen application time during the crop growing period is one of the most limiting factor for wheat production. A field experiment was conducted in Northwestern Ethiopia with the objective of determining the appropriate N fertilizer application time for improving bread wheat production. Twelve treatments (½ urea at 50% emergence + ½ urea at tillering, ½ urea at tillering + ½ urea at booting, 1/3rd urea at 50% emergence + 1/3rd urea at tillering + 1/3rd urea at booting, 2/3rd urea at tillering + 1/3rd urea at booting, all urea at tillering, all urea at booting, all N at tillering, all N at booting, ½ N at sowing+ ½ N at tillering, ½ N 50% emergence + ½ N at tillering, 1/3rd N at 50% emergence + 1/3rd N at tillering + 1/3rd N at booting, ½ N at tillering + ½ N at booting) were lied out in randomized complete block design (RCBD) with three replications. The study showed that wheat grain yield and protein content was highly influenced by the environment and indirectly correlated with each other as affected by N time of applications. The grain yield at Adet, Wonberema and Debre Elies was increased by 31%, 14% and 18%, respectively when N was applied with DAP at sowing over the blanket recommendation. At all locations, grain protein content decreased as the number of N split application increased 1 to 3 times. Thus, depending on the purpose of the producers, it can be concluded that application of ½ urea at 50% emergence + ½ urea at tillering with the application of DAP at sowing gave maximum wheat grain yield, while optimum grain protein content was obtained when N was applied after the crop is emerged and would be used in most dominant wheat producing areas of northwestern Ethiopia. Further study should be conducted on split application of blended fertilizers (NPS, NPSBZN etc.).

show abstract

Bridging the yield gaps of bread wheat at a scale through an innovative method of lime application in the acidic soils of Northwestern Ethiopia

Cited by 6 publications

References 21 publications

Identifying limiting nutrient(s) for better bread wheat and tef productivity in acidic soils of north‐west Amhara, Ethiopia

Identifying limiting nutrient(s) for better bread wheat and tef productivity in acidic soils of north‐west Amhara, Ethiopia

Remediation of acid soils and soil property amelioration via Acacia decurrens-based agroforestry system

Optimizing time and split application of nitrogen fertilizer to harness grain yield and quality of bread wheat (Triticum Aestivum L.) in northwestern Ethiopia

Contact Info

Product

Resources

About