DECOMPOSITION OF ORGANIC RESIDUES AS AFFECTED BY VARIOUS DRYLAND SPRING WHEAT-FALLOW ROTATIONS

Dryland Wheat Grain Yield and Yield Components as Affected by Slope Direction and Residue Rates

Limited information is available on the effect of residues rates and slope direction on dryland wheat (Triticum aestivum L.) yield.  This study was carried out to determine the effects of residues rates and tillage direction on grain yield and yield components of the Sardary wheat in a dryland region in Zanjan. Five wheat residues rates (0, 25, 50, 75 and 100% surface cover) were applied and i...

Simulated yield and profitability of five potential crops for intensifying the dryland wheat-fallow production system

Greater precipitation use efficiency (PUE) and economic returns by increasing cropping frequency through the addition of summer crops to the dryland winter wheat-fallow (WF) cropping system have been reported in the semiarid Central Great Plains of USA. However, due to the highly variable nature of precipitation and uncertain water availability, selection of a crop with assured positive net ret...

Winter Pea: Promising New Crop for Washington's Dryland Wheat-Fallow Region

A 2-year tillage-based winter wheat (Triticum aestivum L.)-summer fallow (WW-SF) rotation has been practiced by the vast majority of farmers in the low-precipitation (<300 mm annual) rainfed cropping region of east-central Washington and north-central Oregon for 140 years. Until recently, alternative crops (i.e., those other than WW) so far tested have not been as economically viable or stable ...

2011 Organic Spring Wheat Weed Control Strategies

Effects of No-tillage Fallow as Compared to Conventional Tillage in a Wheat-fallow System