6. Managing Water & Nutrients Flashcards

1
Q

What does RDI stand for

A

regulated deficit irrigation

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2
Q

What is the process of RDI

A

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.

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3
Q

What does PRD stand for

A

Partial rootzone drying

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4
Q

What is the process of PRD?

A

irrigation technique where only a portion of a plant’s root system is irrigated at a time, causing the plant to reduce transpiration

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5
Q

define Biodegradable

A

We define biodegradable as the ability for a material to be broken down naturally by the organisms in an ecosystem

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6
Q

How does humus increase soil structure

A

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;

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7
Q

What is humus

A

Humus is dark, organic material that forms in soil when plant and animal matter decays.

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8
Q

definition; composted

A

Composting is the managed, aerobic decomposition of organic materials by microorganism

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9
Q

What is the difference between tiling and ploughing

A

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

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