Yield projections on 10-year Treasuries, now at 3.3%, a historic low, range from 2.5% to as high as 5.5%.
The residual variance increased as the length of the projection period increased as is typical in yield projections.
Nobuyuki Chino, president of Unipac Grain in Tokyo, said he was carefully following U.S. corn acreage figures, as well as corn yield projections.
U.S. corn acreage figures are currently forecasted at about 86 million acres, down 8.0% from 2007, as well as corn yield projections.
This paper outlines a methodology which uses site-specific, historical weather records for a relative yield prognosis (Yrel) via yield projections and reference calculations.
Current and future yield projections were used with POLYSYS to forecast rates of adaptation and economic impacts on regional agricultural markets.
The plantation yield curves (part b) show similar yield projections over the longer term, but again the DFSIM yields are extrapolations beyond about total age 45 (Curtis et al. 1981).
While under RCP8.5 yield projections decrease further with time (near term, then mid-century, then end-of century), projections under RCP4.5 decrease further until mid-century and recover by the end-of-century to levels comparable to near-term.
In addition, while RCP8.5 projections remain all beneficial (all increases) despite a decline in time, yield projections under RCP4.5 decline drastically up to − 26% decrease either (i) as soon as mid-century in combination with early planting, or (ii) end-of-century in combination with late planting.
To compare the N cycling of MSR and AC, this study (1) summarized literature values of N pools and fluxes in both systems, (2) directly measured N leaching and N2O emissions in a side-by-side trial of MSR and an establishing AC over four years, and (3) used AC yield projections to estimate the trajectory of yield-scaled N losses as AC grows to productive maturity.
