Cow, Chicken or Goat Manure? Which One Your Vegetables Actually Want
Stand in front of a shelf of organic fertiliser in Sri Lanka and you will see the same three animals over and over: cow, chicken and goat. The bags look similar, the prices are close, and almost nothing on the label tells you which one your plants actually want. So people buy whichever is cheapest, use it on everything, and wonder why the tomatoes sulk while the mukunuwenna goes wild.
They are not interchangeable. Each one does a different job. Here is how to tell them apart, and which to reach for depending on what you are growing.
The Short Answer
- Leafy greens (mukunuwenna, kankun, thampala, gotukola, cabbage) → chicken manure. Highest nitrogen, pushes leaf growth hardest.
- Fruiting vegetables (tomato, brinjal, capsicum, beans, cucumber) → cow manure as the base, with a little chicken manure early on. Too much nitrogen later gives you a big green plant and almost no fruit.
- Pots, grow bags and anything you are nervous about → goat manure. The most forgiving of the three.
- Tired, compacted or sandy soil → cow manure, in quantity. It is the best soil conditioner of the three by a wide margin.
Chicken Manure: The Strong One
Poultry manure carries the most nitrogen of the three — roughly two to three times what cow manure offers — along with good phosphorus. Nitrogen is what builds leaves, so for anything you harvest by the leaf, this is the fastest-acting choice you can buy.
That strength is also the catch. Raw chicken manure is what gardeners call “hot”: the ammonia in it will scorch young roots and burn seedlings outright. It also announces itself to the whole neighbourhood for about a week.
Composted and pelletised poultry manure solves both problems. The composting stabilises the nitrogen so it releases over weeks instead of all at once, and the pelletising means you handle dry granules rather than wet litter. Our Eco Max Green Boost 3kg is 100% poultry litter in pellet form for exactly this reason. If you prefer a powder you can mix into potting soil, the 2kg chicken manure powder is Rs 245.
Use it for: leafy greens, cabbage, cauliflower, leeks, and as a boost for any plant that looks pale and slow.
Go easy on: root crops like carrot and radish (too much nitrogen gives you lush tops and a thin root), and fruiting plants once they start flowering.
Cow Manure: The Soil Builder
Cow dung is the opposite personality. The nutrient numbers are modest — it will not produce a dramatic growth spurt — but it is full of organic matter, and that is what actually fixes soil.
If your garden is the hard red-brown clay common around Colombo’s suburbs, or loose sand near the coast, cow manure is what changes the structure. Clay holds together less tightly and drains better; sand holds water for longer instead of letting it run straight through. Those improvements last for seasons, not weeks.
It is also gentle enough to use generously without worrying about burn. Eco Max Bio Bull 3kg cow dung pellets is Rs 735, and the 2kg powder is Rs 250 if you want to work it through a bed before planting.
Use it for: preparing any new bed, improving pots that have been used for a season or two, fruiting vegetables, and as the base layer under almost anything.
Don’t expect: a fast visible response. This one works on the soil, and the soil works on the plant.
Goat Manure: The Easy One
Goat manure is the least known of the three and arguably the most useful for container gardeners. It arrives naturally dry and pellet-shaped, so it is clean to handle and barely smells. Its nutrient content sits between cow and chicken — enough to feed properly, not enough to burn easily.
Because it is dry, it also breaks down more slowly and evenly, which suits a pot where you cannot flush away a mistake. If you have killed plants by over-feeding before, start here. Goat dung manure powder 2kg is Rs 250.
Use it for: balcony and rooftop pots, grow bags, seedlings being hardened off, herbs, and anything you are growing for the first time.
What If You Only Want to Buy One Thing?
Buy a good general compost instead of picking a single manure. A properly finished compost gives you a bit of everything plus the organic matter, and it is almost impossible to overdo. Our Eco Agri Natural Organic Compost is Rs 440, and Eco Max Lusty slow-release compost pellets feed gradually over several weeks rather than all at once.
If you are setting up from nothing, the Beginner Home Garden Kit at Rs 1,699 bundles the fertiliser, growing medium and seeds together so you are not guessing at quantities on your first attempt.
A Mix That Works for Most Home Gardens
If you want one approach that covers nearly everything a Sri Lankan home garden grows:
- When preparing the bed or pot: work in cow manure or compost generously. This is your foundation.
- Two weeks after planting: a light dose of chicken manure for leafy crops, or goat manure for everything else.
- Once flowering starts on fruiting plants: stop the chicken manure. Switch to compost only.
- Every six to eight weeks after that: top up with a slow-release pellet.
Add rice husk charcoal (Rs 170) to that mix if drainage is a problem — it is the cheapest fix for soil that stays soggy after our afternoon downpours.
Three Mistakes Worth Avoiding
Using fresh manure straight from a farm. It is cheap for a reason. Uncomposted manure burns roots, can carry weed seeds and pathogens, and smells for days. If you do use it, let it sit for at least six weeks before it touches a plant.
Treating more as better. Over-feeding is more common in home gardens than under-feeding, and the symptoms look confusingly similar — yellowing, wilting, stalled growth. When unsure, use less and wait a fortnight.
Feeding dry soil. Always water before and after applying any manure or pellet. Nutrients move to roots in water; on dry soil they just sit there, and concentrated fertiliser against dry roots is exactly how burn happens.
Still Not Sure?
Work backwards from what you are growing. Leaves you eat want chicken. Fruit you eat wants cow plus compost. Pots and beginners want goat. Poor soil wants cow, in quantity, repeatedly.
You can browse all three across our full range of organic fertilisers, and delivery is island-wide, charged by weight at checkout.
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