These fertilisers help improve soil structure and supply a small amount of nutrients (7)
We should store our fertilisers where they will not be exposed to any ________ (8)
High concentrations of dissolved ions in the soil solution causes this (8)
PH influences the _________ of nutrients (12)
An example of a species which may require more regular fertilising (4)
A fertiliser high in this will promote root development (10)
Can cause dispersion in soils (6)
Fertilisers which are often specific to a crop type, and include a wide range of nutrients (5)
Can become available to plants at a low pH (9)
Where excessive nutrient levels in waterways leads to the growth of algae and depletion of O2 (14)
Iron fertiliser may be applied to the soil, or as a ________ spray (6)
A system where fertilisers are supplied via the irrigation system (11)
Applying ammonium sulphate may cause soils to become more _____ (6)
Influences soil C.E.C (7)
Micronutrients in fertilisers may also be called _______ elements (5)
Fertilisers in this form include gypsum, lime and sulphur (6)
Micronutrients become less available in this pH range (8)
These soils have a high C.E.C (4)
A fertiliser with a N:P:K of 12:4:8 (7)
An N:P:K of 12:1.4:6 would be suitable for plants in this family (10)
Before fertilising, we should identify the soil properties, and plant __________ (7)