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Questions tagged [fertilizer]

Nutritional supplements for soil. Use this tag with questions about how to use or how to choose fertilizers for specific plants.

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8 views

How to use charcoal ash for

I have a lot of charcoal ash after doing BBQ and it is hard to throw it but I read somewhere, it can be good for grass, I have got patchy garden and my goal is to make it beautiful and lush. Will ...
2 votes
0 answers
24 views

Is it safe to eat brassicas that are fertilized using fish waste?

Some Brassica species such as Brassica juncea and Brassica oleracea (broccoli, cabbage, cauliflower, kale, etc.) are hyperaccumulators of heavy metals. If the soil where such plants grow is regularly ...
0 votes
0 answers
21 views

What do you recommend as the best way to feed watermelon?

My planting scheme is relatively small: 70cm*100cm. I planted watermelon from seedlings, but I want to know from you what they fertilize in the West. Because in Ukraine we have organic or chemical ...
3 votes
1 answer
62 views

What is Christmas Island Rock Phosphate (CIRP) and how do I use it?

I found 2 kilogram (4.4 lbs) sealed plastic bag labelled "CIRP Christmas Island Rock Phosphate 34.5% P2O5". It contains very fine light brown powder. I assume that it is phosphate ...
10 votes
5 answers
26k views

What is the best way to put bonemeal into the soil?

I was suggested to put bonemeal to my chili pepper to make it stronger. However the plant is already there and I've read about bonemeal in the wiki and found out that bonemeal doesn't move by itself ...
2 votes
1 answer
43 views

Available (soluble?) vs. total phosphorus for seed starting

I'm going into my second year starting seeds in soil blocks, and this year I'm switching from a prepackaged fertilizer mix to making my own. I'm going largely from Elliot Coleman's original soil block ...
2 votes
0 answers
22 views

tools and techniques for determining nutrient status in plants

I am interested in tools and techniques, both commercial and academic, developed for determining nutrient status and identifying limiting nutrients in growing plants. My specific interest is in ...
1 vote
1 answer
167 views

What form of nitrogen will be best for plants?

I was thinking about other approaches to wards supply of nitrogen to the plant other then using urea, so what form of nitrogen will be best for plants? And also if we just pass the atmospheric N2 (of ...
10 votes
7 answers
3k views

Why are mineral fertilizers not allowed in organic farming?

Recently I've read an article stating that easy soluble mineral ferilizers are not allowed in organic farming (with a few exceptions). By that I mean that there are some laws that restrict you from ...
2 votes
2 answers
68 views

Is foliar feeding net beneficial, over fertilising the soil directly?

As usual, one can find contradictory claims, either for or against foliar feeding. Since I'm sure there's plenty more studies out there, is there a general consensus on whether foliar feeding is (net) ...
4 votes
0 answers
39 views

What timeline is a fertilizer's NPK value based on?

Fertilizers' NPK values tell me how much nitrogen, phosphorus pentoxide, and potassium oxide equivalent they will have 'available' for my plants. The fertilizer may also contain nutrients are not '...
1 vote
2 answers
805 views

Organic lawn fertilizer available in the UK?

Lots of organic fertilizers on the market but very little information to help choose between them. Can anyone recommend a good one that is available in the UK. Read great things about Milorganite but ...
8 votes
1 answer
2k views

Forcing a non-grafted lemon tree to produce blooms & fruit

About 8.5 years ago I successfully germinated a lemon seed from a store-bought lemon (I believe it was a Eureka lemon). Fast-forward to today and that lemon seed has grown into a 9-foot tall tree. ...
0 votes
0 answers
48 views

My idea for using activated carbon in the garden

I have a 20 liter bucket of liquid fertiliser. I mixed some grass clippings and some twigs and branches and added saltpetre, gypsum, and epsom salts to it. I must say I was surprised at how terrible ...
6 votes
1 answer
6k views

Kentia Palm's Outer Leaves Are Browning Quickly

I have bought a kentia palm about a year ago and I live in a warm and relatively humid climate. Some of the leaf tips have gone brown here and there in the past year, but I have noticed that the outer ...
18 votes
3 answers
56k views

Which plants/trees will benefit from using urine as a fertilizer?

We know that urine can do a plant good. Certain plants (like citrus trees) will absolutely do well if you add urine to their intake. But urine is very high in nitrogen and could potentially "burn&...
2 votes
1 answer
494 views

Is it a good idea to use some coconut milk on my potted plants as a fertilizer?

I have read that milk can be used as a fertilizer, by mixing it with water and adding it to the soil. For example: What ingredients in milk make it a good fertilizer?, Milk powder (for automatic ...
1 vote
1 answer
65 views

Do sweet potato tops make good fertiliser tea?

I am growing sweet potato in my back yard and I come to realize the abundant amount of potato tops after harvesting, do they make a good fertiliser tea or I would just add them to the compost?
1 vote
0 answers
24 views

Drooping peace lilly! Is it ok?

My peace Lilly is drooping and has brown/ yellow spots. is it overwatering or too dry ? I watered it last week But it was also recently fertilized. The soil is a bit moist around the stems but mainly ...
3 votes
1 answer
121 views

What is the cause and Solution to blossom end rot in tomatoes

There are a lot of questions and answers on this topic but I am not completely sure what the main issue is. There seems to be contradictory information as to what causes BER in tomatoes. I have two ...
2 votes
1 answer
286 views

Lemon seedling turning yellow and stopped growing

My lemon seedling is starting to turn yellow, the plant was once a rich green but it has started to fade now, the 2 top leaves are the most effected as can be seen in the picture. It has also stopped ...
2 votes
2 answers
297 views

Is it true that you can't add too much natural fertiliser such as Fermented Plant Juice to a potting mix as opposed to synthetic fertiliser?

I have been making "fermented plant juice" (FPJ) as explained in Nigel Palmers book - The Regenerative Growers Guide to Garden Amendments. Basically, you mix plant material with sugar, 50/50 ...
5 votes
3 answers
7k views

Can I mix cow & chicken manure?

Is there any disadvantage of mixing both? Will it add more value? I am planning to first dilute them in water and then apply in my veggie garden. I purchased these as bagged composted chicken and cow ...
2 votes
0 answers
57 views

Low ph lawn with high calcium levels

I am looking for recommendations how to fertilize while improving ph without further increasing the already high calcium levels. Any insights would be really appreciated.
2 votes
1 answer
402 views

Can you "feed" an avocado plant with avocado pits?

I have grown an avocado plant using the infamous toothpick method, i.e. suspending an avocado pit in water using toothpicks. Since the avocado pit contains the necessary nutrients, I left it in water ...
1 vote
0 answers
24 views

how to obtain information on fertilizer amount per volume

Very simple question but hour long search with no answer. Concentration of fertilizer is relation ship of amount of fertilizer (either mass or molar) with volume, NOT with area, yet all fertilizers ...
5 votes
1 answer
85 views

How often can I apply bokashi juice?

I have successfully setup a bokashi fermentation bucket. I'm currently harvesting bokashi juice and have applied it to some plants. I'm harvesting bokashi juice daily now. How often can or should I ...
1 vote
2 answers
112 views

Is 5-5-2 NPK fruit tree fertilizer suitable for indoor fiddle leaf fig tree?

I read that the best NPK ratio for indoor fiddle fig tree is 3-1-2. I have a fruit tree fertilizer with the ratio of 5-5-2. Can I use it instead? How far away from the ideal ratio is safe to go? Is ...
2 votes
1 answer
40 views

Converting JO-JO tank into liquid fertiliser tank

I have this idea of creating my own liquid fertiliser from all the bio-waste my house produces. I want to take a 2250L JoJo tank filled about halfway with water. Then add all the grass clippings to it....
6 votes
3 answers
181 views

How to convert garden fertilizer dosage to container dosage?

I have a bunch of old-school mineral fertilizers that I would like to use for container plants. The problem is that the dosage on them is grams/m2, lets say for simplicity it is 100 grams/m2. How do i ...
5 votes
4 answers
374 views

Ash as a fertilizer?

I usually burn dried coconut husk and thorny stems from my lemon plants and I winder if the ash produced from burning such stems and leaves or paper can be a good way to fertilize plants? Or I need to ...
7 votes
2 answers
124 views

Fertilized reservoir for automated watering system

I would like to move forward and install an automated watering system for my home plants that grow in growing tent. Today I’m watering x3 times in a week, each watering is for 4 liters of fertilized ...
3 votes
0 answers
66 views

Interpreting soil test instructions

I tested my vegetable garden soil with a lusterleaf rapitest Soil Test Kit. My soil test came back as depleted for nitrogen and phosphorous, and adequate for potash. This is the section of the test ...
2 votes
1 answer
29 views

Soil sample composition over time

I tested my garden soil (NPK for guidance in applying fertilizers) but now I'm questioning my results. I collected the soil as per the instructions and left it to dry in a bucket. Once dry, I left it ...
1 vote
1 answer
37 views

Why my vegetable become prematurely ready?

It has been crazy summer in New Zealand. Hot, wet, cold and plants are acting weirdly. But I just want to make sure what is wrong with my plants. Is it climate or is it soil? Most of my vegetables are ...
2 votes
0 answers
83 views

Trumpet vine is not growing after 4 months

I purchased 4 Violet Trumpet Vine plants and planted them in a raised bed that I have built on the side of our garden shed. The problem is that none of them have grown at all within 4 months (since ...
1 vote
2 answers
54 views

Is grass feed ok to enrich my allotment with?

So I have been given 60 kilos of grass feed for free by a friend, he asked me if I wanted free fertilizer and I said yes without realizing it was for lawns. It is not weed and feed, and does not ...
2 votes
1 answer
40 views

Is brewing plum alcohol forming mold like this suitable to make fertiliser or discarding?

I have a jar of plum alcohol that it is forming mold already due to the uncovered area not being filled with alcohol again. So would like to know what is the best use of it such as the possibility of ...
3 votes
0 answers
26 views

When should I fertilize my plants?

I live in an apartment in Brooklyn that is south facing, and the situation is that I get more light in the winter than the summer because of the amount of trees there are in the backyard (it's very ...
0 votes
1 answer
90 views

Can we use mayonnaise as a fermentation agent for liquid fertilizer?

I have some spoiled mayonnaise somewhat similar to in this picture. I was wondering whether it is possible to use it as an alternative for molasses in liquid fertilizer fermentation.
1 vote
0 answers
320 views

Onion(not peel) water for fertilizer?

I have heard several times that onion peel water is very good for fertilizer, but I never heard about onion itself. Is it good or bad for plants? I only heard if it can be used for insecticide, but I ...
1 vote
0 answers
16 views

How much fertilizer is too much when feeding mangoes

A Mango growing publication from University of Florida recommends a total of 1.5-3 lb of 8-3-9-2 fertilizer for example. (680-1360 g) My growing season is about 6-7 months (~26 weeks) and my ...
1 vote
1 answer
292 views

Fertilizer with an NPK title i can't understand

I've a fertilizer that has this as NPK specification NPK 6,1-4-5,6 I've understood till now the number should be three, one for each component NPK, what the other numbers means there? Here below the ...
9 votes
5 answers
4k views

Excess Zinc in garden soil

I had the soil in one of my garden beds tested for a wide spectrum of minerals. This bed was originally filled with bought topsoil and mushroom compost, then it was cultivated with parsnips and ...
2 votes
1 answer
91 views

14k gal/week irrigation system design -- am I missing anything? Who can I pay to review it?

I'm planning on setting up an irrigation system for a small farm, I expect to run about 14k gallons/week through the system. I'm trying to figure out how to get the water out to the fields. There's ...
4 votes
1 answer
82 views

How quickly do these fertilizers get used up?

I had my veggie garden soil tested last year and followed the university extension recommendations by adding nitrogen (blood meal) and potassium (sul-po-mag). So far, the plants have responded well ...
1 vote
1 answer
24 views

What mind of plants like Ash Fertilizer/ an npk of 0:2:13?

My wife has aquired some kittens and is using pellet fuel for their litter box. I believe she gos through about 7kg's a week. When looking at it, I see its also described as Ash Fertilizer and even ...
7 votes
5 answers
1k views

Is it OK to use human waste or spent cat litter for fertilizing edibles?

Is it OK to use human waste or spent cat litter directly into the soil where you grow fruits and vegetables?
0 votes
1 answer
121 views

Adding indianmeal moth larvae to compost

I feed mixed grains to birds in a pot. Today, I saw that the grains have turned smelly. I wanted to clean it and I found that there were a lot of small worms in them. A quick google search shows that ...
2 votes
2 answers
316 views

Amount of diluted fertiliser to use on plants

Is there a recommended amount of diluted fertiliser that should be used per plant? Once I've diluted fertiliser (e.g. Tomorite) into water, I never really know how much of that water each plant should ...

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