Cation Exchange Capacity or CEC is a measure of the ability of a soil to hold cations or elements with positive charges.
Continuamos nuestra serie donde hemos estado examinando informes de prueba del suelo para los túneles altos.
July started out dry and hot but transitioned quickly, with almost no warning, to very wet and hot.
Soluble salts commonly found in soils are calcium, magnesium, sodium, chloride, sulfate, and bicarbonate. Potassium, ammonium, nitrate, and carbonate are also found, but in smaller quantities.
Downy mildew was confirmed on cucumber in Mifflin County on July 11. Warmer weather throughout the state is helping crops along, but has also been good for insect pests.
Wet weather and variable temperatures across the state continue to be challenging for vegetable and berry production.
pH del suelo en una encuesta de 27 túneles altos en Pennsylvania
Niveles de fósforo, potasio, magnesio y calcio en una encuesta de 27 túneles altos en Pennsylvania.
Phosphorus (P), potassium (K), magnesium (Mg), and calcium (Ca) levels in a survey of 27 high tunnels across Pennsylvania.
Cloudy weather, rainstorms, and variable temperatures across the state have slowed some crops and created very favorable conditions for disease development.
It’s no secret that this spring has been cold and wet across Pennsylvania. On many farms, planting has been delayed as much as three weeks, and many crops already in the ground are developing more slowly than usual.
Low media pH has been known to increase the risk of iron and manganese toxicity in some horticultural crops like geraniums and African marigolds.
An ongoing project funded by the Pennsylvania Vegetable Growers' Association looks at cropping and nutrient management issues in high tunnels.