Abstract
During crop cultivation, improper application of fertilizers can lead to an imbalance in soil nutrients, resulting in decreased crop yield and deterioration of soil health. To determine the optimal fertilizer combinations for crops, omission experiments prove to be the most practical and straightforward approach. This research was conducted in the Habru district, specifically in Sirinka kebele, during the 2021/2022 cropping season. The main objective was to identify the nutrients that limit Sorghum (Sorghum bicolor) yield through omission trials in the same district. The test crop utilized in the study was the Melkam variety of Sorghum. The various treatments applied were Control, NPKSBZn, NPKSZn, NPKSB, NPKBZn, NPSBZn, NKSZn, PKSBZn, and RNP, all arranged in a randomized complete block design (RCBD) with three replications. Prior to the experiment, a composite soil sample was collected from the field to assess crucial factors such as pH, soil texture, organic carbon content, cation exchange capacity (CEC), Total N, available P, Exchangeable S, K, Zn, and B. For the analysis of data, the statistical software SAS version 9.3 was employed to conduct variance analysis. The results from the analysis of variance revealed that the treatment with fully fertilized plots (NPKZnSB) achieved the highest grain yield of 4,144.14 kg ha-1. Following closely was the treatment with sulfur omission (NPKZnB) producing 4,100.0 kg ha-1, whereas the unfertilized treatments only yielded 2,595.32 kg ha-1. In addition to grain yield, the plots treated with NPKSB exhibited the highest agronomic efficiency of N and P. As a consequence, it is imperative for research and development efforts to prioritize nitrogen for achieving optimal sorghum production in the study area. Simultaneously, phosphorus can be strategically employed to maintain optimal fertility levels in the soil. To enhance crop productivity and sustainable agriculture practices, this study highlights the significance of balanced fertilizer application and the importance of understanding the nutrient requirements specific to Sorghum crops in the Habru district. By adopting such knowledge, farmers, and policymakers can make informed decisions and contribute to the overall agricultural development of the region.
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Claims 6
Claim · model-written summary
Fully fertilized sorghum plots (NPKZnSB) gave the highest grain yield, 4,144.14 kg ha-1.
- Treatment
- fully fertilized plots (NPKZnSB)e1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 4,144.14 kg ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sorghum (Sorghum bicolor)”
e1“the treatment with fully fertilized plots (NPKZnSB) achieved the highest grain yield of 4,144.14 kg ha-1”
Claim · model-written summary
Sulfur omission (NPKZnB) closely followed with a grain yield of 4,100.0 kg ha-1.
- Treatment
- sulfur omission (NPKZnB)e1
- Outcome
- grain yielde2
- Direction
- Following closelye1
- Value
- 4,100.0 kg ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sorghum (Sorghum bicolor)”
e1“Following closely was the treatment with sulfur omission (NPKZnB) producing 4,100.0 kg ha-1”
e2“highest grain yield of 4,144.14 kg ha-1”
Claim · model-written summary
Unfertilized sorghum treatments yielded only 2,595.32 kg ha-1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sorghum (Sorghum bicolor)”
e1“whereas the unfertilized treatments only yielded 2,595.32 kg ha-1”
e2“highest grain yield of 4,144.14 kg ha-1”
Claim · model-written summary
Plots treated with NPKSB had the highest agronomic efficiency of N and P.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sorghum (Sorghum bicolor)”
e1“the plots treated with NPKSB exhibited the highest agronomic efficiency of N and P”
Claim · model-written summary
Research and development should prioritize nitrogen to achieve optimal sorghum production in the study area.
- Outcome
- prioritize nitrogene1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“it is imperative for research and development efforts to prioritize nitrogen for achieving optimal sorghum production in the study area”
Claim · model-written summary
Phosphorus can be strategically employed to maintain optimal soil fertility levels.
- Outcome
- maintain optimal fertility levels in the soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sorghum (Sorghum bicolor)”
e1“phosphorus can be strategically employed to maintain optimal fertility levels in the soil”
The same questions in other papers
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This paper is about lacking the nutrient, so it counts the other way round here.
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See all 446 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.