Výsledky vyhledávání - "S. G. Hefner"

Corn Production Using Alternate Furrow Nitrogen Fertilization and Irrigation

Autor: P. W. Tracy, S. G. Hefner

Publikováno v: Journal of Production Agriculture. 8:66-69

Any overwatering associated with surface furrow irrigation can reduce N fertilizer use efficiency. This 3-yr study was conducted to determine whether an irrigation and fertilizer placement system that puts water and N fertilizer in adjacent furrows c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b11a609a35fc1a418aad926d8715e95d
https://doi.org/10.2134/jpa1995.0066

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The Effect of Nitrogen Quantity and Application Timing on Furrow-Irrigated Rice

Autor: S. G. Hefner, P. W. Tracy

Publikováno v: Journal of Production Agriculture. 4:541-545

(.)Soil- and plant-N concentrations indicated most efficient N application for furrow-irrigated rice occurred when the majority of N was applied 4 wk after planting, with no advantage to N inputs later than 14 d post-panicle differentiation(.)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abe88bf806d79969502f9acdc36e48a5
https://doi.org/10.2134/jpa1991.0541

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Effects of Nitrogen Source, Application Timing, and Dicyandiamide on Furrow-Irrigated Rice

Autor: P. W. Tracy, S. G. Hefner

Publikováno v: Journal of Production Agriculture. 4:536-540

(.)Nitrogen was applied at 180 lb/acre at 4 wk after planting (4WAP) with and without dicyandiamide; a 1:1:1 ratio 4WAP, panicle differentiation (PD) and 14 post-PD; and a 4:1:1 ratio at 4WAP, PD and 14 d post-PD. Soil and plant samples were analyzed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01cd3a7fe0fc7ab68bbeec97be52c0dd
https://doi.org/10.2134/jpa1991.0536

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