6. Managing Water & Nutrients Flashcards
What does RDI stand for
regulated deficit irrigation
What is the process of RDI
is a system of timing and regulating the amount of irrigation so that the vine is put under mild to moderate water stress for a specified time within the growing season. Usually between fruit set and veraison.
What does PRD stand for
Partial rootzone drying
What is the process of PRD?
irrigation technique where only a portion of a plant’s root system is irrigated at a time, causing the plant to reduce transpiration
define Biodegradable
We define biodegradable as the ability for a material to be broken down naturally by the organisms in an ecosystem
How does humus increase soil structure
Humus increases soil structure because its resinous nature acts as a “cement” to bind together soil particles, forming aggregates that create a crumbly texture, allowing for better air and water circulation through the soil, while also resisting erosion from wind and water;
What is humus
Humus is dark, organic material that forms in soil when plant and animal matter decays.
definition; composted
Composting is the managed, aerobic decomposition of organic materials by microorganism
What is the difference between tiling and ploughing
Both refer to breaking up soil in agriculture, key difference is that ploughing involves a deeper turning over of the soil using a plough, whereas tilling refers to a shallower loosening of the soil using a tiller