Zobrazeno 1 - 10
of 10
pro vyhledávání: '"G. D. Binford"'
Publikováno v:
Journal of Production Agriculture. 10:466-472
Sunflower (helianthus annuus L) is often grown as an alternative crop in wheat (Triticum awstivum L.)-fallow areas of the northern High Plains. Optimum management of fertilizers is important to maximize profit potential and avoid environmental concer
Publikováno v:
Journal of Environmental Quality. 25:1339-1343
Long-term experiments offer unique possibilities to study time-dependent effects of management practices on crops and soils. Phosphorus movement in soil resulting from long-term manure and fertilizer application are an environmental concern when P re
Maize Temporal Yield Variability under Long-Term Manure and Fertilizer Application: Fractal Analysis
Publikováno v:
Soil Science Society of America Journal. 59:1360-1364
Long-term experiments offer unique possibilities to study the effects of management practices on crops and soils with time. Characterizing temporal variability of grain yield provides an opportunity to distinguish between the effects of environment v
Autor:
A. M. Blackmer, G. D. Binford
Publikováno v:
Journal of Production Agriculture. 6:41-46
Most producers use firing, the premature death of lower leaves, to visually rate the N status of corn (Zea mays L.). Although such visual rating is often done, there is a severe lack of quantitative information about the relationships between firing
Publikováno v:
Agronomy Journal. 84:881-887
The concentration of NO 3 #75 in the lower portion of cornstalks at physiological maturity has been proposed as the basis for evaluating the N status of corn (Zea Mays L.). Here we refine estimates of the optimal range in NO 3 #75 concentrations for
Publikováno v:
Agronomy Journal. 84:219-223
(...) Here we evaluate total N concentrations of whole corn (Zea mays L.) plants in late spring as an indicator of N availability in cornfields. Studies were conducted at 14 site-years in Iowa during 1986, 1987, 1988, and 1989. Whole plant samples we
Publikováno v:
Agronomy Journal. 84:53-59
Recent studies have shown good correlations between corn (Zea mays L.) yields and concentrations of NO 3 in the surface 30-cm layer of soil in late spring. Here we report additional correlations and evaluate the benefits of sampling to 60 cm instead
Publikováno v:
Agronomy Journal. 82:124-129
(...) Studies were conducted to evaluate NO - 3 concentration in corn (Zea mays L.) stalks at physiological maturity as the basis for a tissue test to characterize degree of N excess during corn production. Samples of the lower portion of corn stalks
Publikováno v:
Applied Engineering in Agriculture. 18
Eight tillage systems were compared during three growing seasons for emergence and yield of sugarbeets not irrigated for emergence. Systems included three currently used in Nebraska and the surrounding growing area, three used in other sugarbeet prod