Gary Varvel

5 scholarly publications naming this subject were located in the registry of record.

varvel, n., Oxford English Dictionary, 2023. Energy potential and greenhouse gas emissions from bioenergy cropping systems on marginally productive cropland., PLoS One. Long-term no-till and stover retention each decrease the global warming potential of irrigated continuous corn., Glob Chang Biol. Soil Carbon Response to Projected Climate Change in the US Western Corn Belt., J Environ Qual. Management controls the net greenhouse gas outcomes of growing bioenergy feedstocks on marginally productive croplands., Sci Adv.

2 digitised items associated with this heading are catalogued by DataCite (Ag Data Commons).

Data from: Crop Sequence and Nitrogen Fertilization Effects on Soil Properties in the Western Corn Belt (2024) — DataCite (Ag Data Commons). Data from: Crop Sequence affects horseweed density and productivity in oats (2025) — DataCite (Ag Data Commons).

Bibliographic registers publish measured figures for this heading: 4 deposited research records (DataCite Commons) and 4 biomedical publications indexed (PubMed (National Library of Medicine)). A count of publications is evidence of attention, not of standing, and is given here only as a measure.

This article draws on 3 independent source lineages. Copies and mirrors of the same underlying record were collapsed into a single witness, so 3 means 3 genuinely separate publishers of record. 23 further registers were consulted and returned nothing for this heading.