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Crop Production and Principles (Catch Crops (Advantages (fast growing,…
Crop Production and Principles
Certified seed
85% germination rate
98% purity
Free from disease
Winter varities
frost resisant
longer growing season
higher yield
Crop rotation
soil inst depleted
less chance of build up off diseases
helps soil structure
Catch Crops
Fast srowing
Grown in between two crops where land may lie
Stubble turnip 12-14 weeks
Kale 5-6 months
Advantages
fast growing
high yields
reduce winter feed cost
Disadvantages
labour intensive
low in fibre
vulnerable to pests and disease attacks
Control of pests weeds and diseases
Biological control
using a predator such as the ladybird which eats greenflies
Chemical control
herbicide fungicide pesticide
Selective Herbicide
kills certain weeds
Non selective herbicide
kills everything
Pre emergent
sprayed before weeds have germinated
Post emergant
Sprayed after weeds have germinated