Effect of cereal rotations on soil pH, organic matter, and microbial properties of a Brown loam

Non-Peer Reviewe

Agrispon™ fails to prove claims in scientific testing

Non-Peer Reviewe

Micronutrient deficiencies in Manitoba crops

Non-Peer Reviewe

Economics of tillage management systems in northeastern Alberta

Non-Peer ReviewedThe economic returns and riskiness of continuous barley production using four tillage management systems were compared at five sites in three soil zones in northeastern Alberta. The study used five years of data from a tillage experiment in northeastern Alberta. The four tillage systems included conventional one (C1), which leaves 5% standing stubble, conventional two (C2), which leaves 50% standing stubble, minimum-tillage (Min), and zero-tillage (ZT). Economic calculations were based on 1992 input costs and product prices. The systems were evaluated at barley prices of $46,$69, and $92 t-1, calculated with and without all risk crop insurance. Over the five sites the expected net returns were generally higher for ZT at all barley prices. Income variability was usually lower for ZT and C2 depending on the site. The study concluded that use of reduced tillage management systems by producers in northeastern Alberta could increase farm-level returns and reduce the risk of financial loss, while potentially decreasing the amount of soil erosion

Effect of stubble height and source, rate, time, and method of application of N on yield of spring and winter wheat grown under zero-till

Non-Peer Reviewe

Zero-minimum tillage seeding and fertilizer placement techniques for zero-tillage

Non-Peer ReviewedPreliminary results from the field evaluation of zero and minimum tillage seeding machines, as well as fertilizer placement techniques for zero-tillage are presented. Narrow hoe opener (Noble 2000), conventional double-disc (Haybuster 1206), as well as two modified double-disc press drills have been compared for their seeding performance and effects on crop yields in a continuous zero-till wheat test. Further, an air-seeder, a discer and a conventional hoe press-drill have been field evaluated both on cultivated fallow and stubble situations. Deep banding and side banding (approximately 2.5 cm from seed) of fertilizer using both disc and hoe press-drills have been compared to seed-placed fertilizer application