Spring Scouting of Alfalfa

Spring Scouting of Alfalfa

Good agronomy is very important for achieving good yield and quality in forage crops. While good agronomy includes a fertility plan, seeding techniques, and harvest management, it also relies on proactive decision-making. The only way to know what is happening in a field before it is too late is to scout. Taking regular walks through hay fields and observing them carefully is important throughout the growing season, however, there are some special things producers should assess when scouting in the early spring. At green-up When the crop has broken dormancy and is putting out new buds, it is time to do a plant count and root health assessment to determine how well the alfalfa overwintered. This first scouting is a…

Timing Spring Turn-out

Timing Spring Turn-out

Spring is in the air, and ewes and farmers alike are eager to start the grazing season. Timing that delightful move is critical, as spring grazing management sets up both yield potential of the pasture and the quality of the available forage. How early is too early? Livestock should go out on pasture when grasses have fully developed three to four new leaves. Turning out earlier than this is very stressful on the plants. Perennial forages rely on carbohydrates stored in their root systems to fuel regrowth when they break dormancy (Figure 1). The plants do not refill those carbohydrate stores until they have enough leaf area to produce more sugar than they need to grow. By waiting until grasses…

Spring Frost Damaged Alfalfa

This article was originally posted on Field Crop News Written by Joel Bagg. Alfalfa frost damage can sometimes occur in the spring after growth has started, resulting in damaged growing points. Some wilting can be visible about 24 hours after frost or some yellowish or brownish discolouration 3 or 4 days later. The top of the stems will typically bend over with a “shepherd’s hook”. Damage is often minimal and plants will grow out of it, but some yield loss and development delay can result. Thin alfalfa stands are more susceptible to frost damage. “Light Frost” Damage The extent of frost damage to the alfalfa will depend on the severity of the freezing. Temperatures in the plant canopy level are usually…