1. Normal fertile soil is called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Man-made growing medium for plants is called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. If loam is used in a compost, the loam must first be airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater to kill micro-organisms and pests. Loamless compost lacks loam. Instead it contains peat, sand and airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater.

2. Peat and substitutes such as airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater shells improve a compost’s ability to hold airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Grit, airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater and perlite improve the airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater content and let excess water drain away easily.

3. Nitrogen (N), phophorus (P) and potassium (K) are major airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater needed by plants (N for airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater, P for airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater and K for flower and airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater growth). Different fertilizers contain different airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater of these minerals. Chemicals needed by plants in tiny amounts are called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater elements.

4. Some house plants should be watered from above; others from airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Plants can be left unattended for a week or two by setting up watering systems using capillary airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater or automatic airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Compost containing water airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater gel does not need to be watered very often because the gel holds much water.

5. Plants only grow well if given a suitable range of temperature. This can be controlled in a greenhouse using a thermostatically controlled airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Extremes of temperature can be monitored using a airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater and minimum airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater.

6. Good ventilation in a greenhouse is important to stop the air becoming too airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater (damp) and allowing grey mould to attack the plants. The air can be kept fresh using airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater or a airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater controlled airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Relative humidity can be measured using a airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater.

7. Cacti are plants that need direct airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater and well-drained soil. Ferns need good indirect light and airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater compost. Foliage plants are grown for their decorative airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater; flowering plants for their attractive flowers. In general both of these groups like good airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater sunlight and well-watered compost. However detailed needs vary from one type of plant to another.

8. The transfer of seedlings from a crowded site to one with more space is called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater out. The transfer of a potted plant into a larger container is called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater on. The removal of old flowers to encourage a plant to make more flowers is called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater.

9. An animal that damages a plant is called a pest. An example is the airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Such a pest can be killed using chemicals called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. A disease is a condition caused by a micro-organism. An example that affects plants is airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater. Fungal diseases can be treated using chemicals called airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater.

10. Young plants can be protected from extremes of temperature using equipment made of airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater or airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater such as cold frames, cloches and polythene tunnels. Floating airairventsaphidbelowcocoacompostdead-headingfanfertilizerfleecefruitfungicidesglassgrey mouldheaterhumidhygrometerindirectirrigationleafleavesloammattingmaximummoistnutrientspesticidesplasticpottingprickingratiosretentiverootsandsterilizedsunlightthermometerthermostaticallytracewater can also be used to protect plants from frost.