Non-Organic Vegetable Fertilizer. Compost IngredientsEggshells In The Garden: Using Eggshells In Soil, Compost And As Pest Control. Compost IngredientsComposting With Coffee Grounds – Used Coffee Grounds For Gardening. Composting ManuresUsing Chicken Manure Fertilizer In Your Garden. Here are some disadvantages: Some organic fertilizers, such as manures and compost, are bulky and difficult to store and transport. Their slow release of nutrients, in some cases dependent on the action of soil microorganisms, may take too long to remedy a dire situation when an adequate nutrient supply is needed. CHOICE has the lowdown on which vegetables are the best to plant for a beginner. … For those who are space-poor but still want to take advantage of the fertiliser available to …. One of the oldest and largestgardening suppliers in Australia. N, P and K stands for nitrogen, phosphorus and potassium – these are the first three elements on any fertiliser bag. These are important because they provide essential nutrients in large quantities that are ideal for optimum plant growth. Nitrogen is important for leafy growth for plants like lawns or leafy vegetables.