Evidence map›Paper›PMID 30051290›Full record

ArticleEnvironmental science and pollution research international2019

Optimizing irrigation and nitrogen requirements for maize through empirical modeling in semi-arid environment.

Ishfaq Ahmad, Syed Aftab Wajid, Ashfaq Ahmad, Muhammad Jehanzeb Masud Cheema, Jasmeet Judge

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Climate change impacts and adaptations for fine, coarse, and hybrid rice using CERES-Rice.Environmental science and pollution research international · 2020
    Article
  6. Using crop modeling to evaluate the impacts of climate change on wheat in southeastern turkey.Environmental science and pollution research international · 2019
    Article
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ishfaq AhmadAgro-Climatology Lab. Department of Agronomy, University of Agriculture, Faisalabad, Pakistan. ishfaq.ahmad@uaf.edu.pk.
Syed Aftab WajidAgro-Climatology Lab. Department of Agronomy, University of Agriculture, Faisalabad, Pakistan.
Ashfaq AhmadAgro-Climatology Lab. Department of Agronomy, University of Agriculture, Faisalabad, Pakistan.
Muhammad Jehanzeb Masud CheemaDepartment of Irrigation & Drainage, University of Agriculture, Faisalabad, Pakistan.
Jasmeet JudgeCenter for Remote Sensing, Agricultural & Biological Engineering Department, University of Florida, Gainesville, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Uncertainty in future availability of irrigation water and regulation of nutrient amount, management strategies for irrigation and nitrogen (N) are essential to maximize the crop productivity. To study the response of irrigation and N on water productivity and economic return of maize (Zea mays L.) grain yield, an experiment was conducted at Water Management Research Center, University of Agriculture Faisalabad, Pakistan in 2015 and 2016. Treatments included of full and three reduced levels of irrigation, with four rates of N fertilization. An empirical model was developed using observed grain yield for irrigation and N levels. Results from model and economic analysis showed that the N rates of 235, 229, 233, and 210 kg ha

Indexed as

ClimateFertilizersAgricultural IrrigationAgricultureModels, TheoreticalNitrogenPakistanSoilZea maysFertilizersNitrogenSoilIrrigation amountN lossesWater productivityWater scarcity

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.