Crop management || tle

Compete with the growth of farm crops

Weeding

Have one life cycle and it has seeds

Annual weeds

Two season life cycle

Biennial weeds

Live for 2 + years

Perennial weeds

Methods of controlling weeds

• Pasturing farm animals before tilling

• Plowing fields after harvesting

• Perennial weeds are eradicated by spraying 

• Cultivation while plant is growing

Ladybugs are examples of

Chewing insects

Number five this insects bite and eat leaves was stems of fruit from plants

Chewing insects

They pierce plant tissues and they suck sap

Sucking insects

It is a combination of chewing and sucking insects

Lapping insects

Chewing insects usually have

A jaw to chew

This refers to the tillage operation of the soil around the plants

Cultivation

Purpose of cultivation

• Pulling the weeds alone is already means of cultivation to destroy weeds 

• To loosen and rough on the surface of the soil so that water can easily penetrate 

• To turn in organic matter

• To aerate the soil

To get more of good quality vegetable leaves and fruits and food crops

Fertilization

Three elements taken by the soil

Nitrogen and phosphorus and potassium

Is a composted animal manure or green manure and it contains complete mineral elements needed for plant growth and development

Organic fertilizer or compost

Are also called chemical or commercial fertilizers because they are chemically prepared and commercially available on the market

An organic fertilizers

Take their food by chewing part of the plant especially young leaves and stems

Chewing insects

This kind of insect has a tube like sucking mouth and it insert its mouth part into the tissues of the leaf or stem and self their food in liquid form

Sucking insects