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The 28 references without a DOI — listed, not checked
no DOI — not checkedSoil organic matter
no DOI — not checkedOrchard factors affecting postharvest stone fruit quality
no DOI — not checkedFertigation versus broadcasting in an orange grove
no DOI — not checkedPhosphorus fertilization in no-tillage corn production
no DOI — not checkedSoil cation and water distribution as affected by NH4NO3 applied through a drip irrigation system
no DOI — not checkedQuality and storability in relation to fertigation of apple trees cv. Summerred
no DOI — not checkedPhosphorus
no DOI — not checkedPlant, soil and water reference methods for the western region
no DOI — not checkedTillage and fertilizer management effects on soybean growth and yield on three Mississippi soils
no DOI — not checkedPear fertilizer guideline
no DOI — not checkedPrinciples of fertilizer use for trickle irrigated crops
no DOI — not checkedA simple soil test for detecting sites that are nonresponsive to nitrogen fertilization
no DOI — not checkedDrip nitrogen, phosphorus, and potassium fertigation of “Apadona” pear
no DOI — not checkedDrip nitrogen fertigation of ‘Starking Delicious’ apple trees
no DOI — not checkedStatistical principles of research design and analysis
no DOI — not checkedVertical distribution in soil of unincorprated surface-applied phosphorus under sprinkler irrigation
no DOI — not checkedMehlich 3 soil test extractant: A modification of Mehlich 2
no DOI — not checkedResponse of apple trees to fertigation-induced soil acidification
no DOI — not checkedOrthophosphoric acid as a phosphorus fertilizer in trickle irrigation
no DOI — not checkedPhosphorus fertilization with drip irrigation
no DOI — not checkedManaging nitrogen in pears
no DOI — not checkedSeasonal differences, soil texture and uptake of newly absorbed nitrogen in field-grown pear trees
no DOI — not checkedResponse of Comice pear trees to a postharvest urea spray
no DOI — not checkedOrchard floor and nitrogen management influences soil and water quality and tart cherry yields
no DOI — not checkedCalcium and phosphorus penetration in an orchard
no DOI — not checkedOregon watershed assessment manual. June 1999
no DOI — not checkedpH and lime requirement
no DOI — not checkedA long-term comparison of broadcast application versus drip fertigation of nitrogen for mature pecan trees
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