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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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 ...
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2 votes
2 answers
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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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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 ...
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Looking for suggestions on whether I should tear up this lawn or try to condition it

I have a front lawn that needs some major help. Trying to determine if I need to tear it up or try to condition it. I have a skunk that is digging small holes, but when I dig for grubs I don't find ...
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How far is a espresso brew coffee nitrogen molecules to those able to be absorbed by plants?

I live in a small apartment with 3 small balconies, all of them full of plants. Most of the plants have big roots and are in too small pots, just because I don't have enough space or I have too many ...
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Sul-po-may and blood meal at the same time?

My university extension suggested a combination of sul-po-mag and blood meal to increase my vegetable garden's potassium and nitrogen. Link: How to increase nitrogen and potassium at the same time? I ...
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1 answer
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How to increase nitrogen and potassium at the same time?

I had my vegetable garden soil tested by a local university extension. (If it matters, I'm in the northeast US, zone 5.) The results indicated that the soil was deficient in nitrogen and potassium. ...
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How to dose ammonium chloride?

I stumbled upon a brick of ancient NH4Cl. I dissolved a teaspoon of it in water and fed it at the base of a young pelargonium. Despite sufficient sunlight it's leaves were yellowing so I assumed ...
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What Kind of Leaf Burn is this on my Bell Peppers?

These Bell peppers are nearly a year old and about a foot tall. They come from seeds from eating peppers from the supermarket. They have lived most of their lives indoors starting July 2021. I live in ...
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4 votes
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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 ...
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What's a balanced homemade fertilizer I can use in my house plants?

I have a garden with a composting pile and also plenty of indoor plants, everything organic. These indoor plants will need fertilizer on a regular basis. In order to avoid plastic consumption and the ...
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How long to see results in citrus tree after soil remediation?

I recently discovered that a nutrient imbalance might be contributing to a grapefruit tree having fruit with thick rinds and no fruit/pulp. Here's the explanation I'm working from. If I add bone meal ...
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4 answers
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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 ...
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3 votes
2 answers
60 views

Can I Reuse Halloween Pumpkins as Fertilizer?

I have a bunch of pumpkins from Halloween. Normally I’d just toss them in the trash however began to wonder about an alternate use. Can I just mash up those pumpkins and spread around my trees and ...
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1 answer
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Does leaving the grass trimmings raise the lawn?

If I cut my lawn with a bio cutter, and therefore leave the grass trimmings on the lawn. Will the dirt level raise over time? My concern is if the dirt level will go above the side walk tiles, as my ...
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Which NPK range are lawn starter fertiliser?

When watching videos on YouTube they talk about lawn starter fertilisers, where it is important to use such when seeding, so the new seeds doesn't burn. But what NPK range are considered to be lawn ...
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1 answer
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Is Iron(II) sulfate safe to use in gardens with fruit trees and vegetables?

Iron(II) sulfate should be very effective against moss, and even a Fertiliser for grass, if I have understood its use correct. But my question is it safe to use in a garden with fruit trees and ...
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2 answers
70 views

Soil test results + need help understanding the recommendation

I have gone through couple of similar questions in this forum but did not quite understand on how to interpret and calculate the required amount of fertilizer and type of fertilizer to choose from. So,...
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1 answer
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How to deal with nutrients reacting with each other

I did a soil test and as expected my sandy soil came back low in almost everything but calcium with 8.4 pH and very low organic matter. I'm not worried about micronutrients as I could probably foliar ...
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1 answer
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Can Magnesium sulfate be mixed with NPK

Does magnesium compete with Potassium? I see several fertilizers that have Potassium and Magnesium at the same time, so I'm wondering if I could safely mix magnesium sulfate with an NPK fertilizer. ...
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1 vote
1 answer
169 views

Tomorite dilution

The bottle of Tomorite says 20ml should be diluted into 4.5L of water for use on 2 plants. 4.5L of water for 2 plants is more than I'd usually give. Would it be OK to quadruple the dose but also ...
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1 answer
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My indoor strawberry plants stopped producing runners, could fertilizer be the reason?

I germinated some strawberry seeds from strawberries that I bought from the fruit guy on the corner sometime in October of last year. Once the plants got big enough to flower, they started producing ...
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Does boron require chelation in alkaline soils

My soil test shows 0.4ppm Boron which puts its into the deficient category. I have few Mango seedlings and mature pear trees that show Boron deificiency. I tried foliar feeding but I would love to ...
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1 vote
1 answer
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Can foliar feeding immobile nutrients benefit new growth

In many articles that I read about correcting nutrient deficiencies, I noticed that very often foliar feeding is suggested as an option, even for immobile nutrients deficiencies. How does that help ...
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2 votes
1 answer
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Difference between different forms of Potassium Sulfate

What would be the differences between potassium sulfate in its granular form versus the water soluble almost-powder form. As it's the same chemical formula, I'm mostly interested in the release time, ...
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2 answers
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Will Potassium Oxide reduce uptake of Sodium as much as Potassium Nitrate

I recently read that the potassium cation (K+) can reduce or prevent the uptake of sodium. I was wondering when a fertilizer lists Potassium as Potassium Oxide, will it have the same blocking effect ...
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2 votes
2 answers
78 views

Injecting zinc fertiliser directly into plant roots

I am facing an unusual problem. The soil concentration of heavy metal cadmium (Cd) in my garden is high. Getting cadmium out of the soil is a tricky and long term process, and the quick solution is to ...
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2 votes
1 answer
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How can I remove the oil from my soil and grow new grass

I just moved into a new home that used to have an above-ground pool in the backyard. A guy mentioned that they might have put oil on the ground to prevent weeds from growing underneath the pool so ...
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1 vote
1 answer
144 views

Why are my hydroponic herbs turning purple after changing fertilizer?

I replaced my depleted liquid Aerogarden fertilizer with 3-3-2 AgroThrive Organic General Purpose Liquid Fertilizer. I maintained the same feeding regimen: two capfuls every two weeks. My herbs are ...
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2 answers
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Is applying fertilizer to newly planted rootball laurel bushes a good idea?

I've recently planted some medium size (about 4' or 1.25m) root-balled cherry/common laurel bushes. Some are looking a little unhappy a couple of weeks later and I wondered if applying some balanced ...
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2 votes
3 answers
121 views

Need help interpreting my soil test results and fertilizer recommendations

The guy from the lab told me to use 13-13-13 fertilizer. my Lawn is 4000 sq feet, 1 (8 pounds/1000 sq ft) in April and 1 in May end. And then 1 each in September and October end. Also, use liquid ...
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1 answer
134 views

Can I use seeds as a fertilizer?

Since seeds are packed with nutrients, could it be a good idea to break them (so they don't sprout) and use them as a fertilizer?
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3 votes
0 answers
31 views

Leaf scorch on perennials from fertiliser

Fertiliser was applied correctly but some of the leaves were wet and it was only watered off after signs of scorch and wilt. The leaves are scorched on some of the plants. Will the plants put on ...
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2 votes
4 answers
137 views

Are synthetic fertilisers necessary in potting plants?

Is it possible to have healthy plants (edible ones) flourishing in pots without the use of synthetic fertilisers? I have concerns regarding fertilisers polluting nearby water sources/soil from ...
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1 vote
1 answer
31 views

Is humic acid good for Norfolk Island Pine tree

I have a Norfolk Island Pine tree discussed here. I want to improve its well-being. Would liquid humic acid be helpful? What kind of fertilizer would be most effective? Is there any related ...
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1 vote
0 answers
25 views

How to feed and mulch fruit bushes

I found some good information on looking after fruit trees of types common in the UK here (https://www.rhs.org.uk/advice/profile?pid=539) Essentially: Clear ground of grass around the trunk Apply ...
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Fertilizers with harmful levels of salts

I read in some articles that potassium chloride and ammonium sulphate can lead to salinity buildup. Is there a simple way to tell by looking at the fertilizer formula if a fertilizer can increase salt ...
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0 votes
1 answer
81 views

Can you bleach human poop to use as fertilizer?

I was thinking about how in The Martian the astronaut used the crew members poop to fertilize the soil and grow potatoes and decided to learn more about that. I read, though, that unprocessed human ...
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1 vote
0 answers
44 views

Optimal hydroponic nutrient solutions for different herbs

I'm planning to grow different herbs hydroponically: basil, sage, mint and thyme. I would like for the nutrient solutions for each herb to be the closest possible to the optimum. For basil I found ...
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1 vote
1 answer
122 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 ...
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0 votes
1 answer
376 views

Can I use bonsai liquid fertilizer on my regular houseplants?

I have 0.5 liter bonsai liquid fertilizer that has outlived my bonsai. I have tried to give it away for free in my local Facebook plant groups, but as it seems no one is really into bonsai in my area. ...
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4 votes
2 answers
624 views

Is this an acceptable way to use green waste on plants?

From what I've read online, it looks like I'm not composting correctly. I don't have much space in my backyard so there's no space for a compost bin/pile. Instead, I've been putting scraps of food at ...
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4 votes
2 answers
546 views

Why do fertilizer ratios not add to 100?

I often see fertilizer NPK ratios that are advertised as "percentages" but the numbers do not add up to 100. My Latin is little rusty but I think per centum means per a hundred. So, in that ...
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2 votes
1 answer
67 views

Coffee grounds as pesticide or fertilizer (in general and/or for Chinese Evergreens)

Earlier today, I noticed a lot of small tiny flies emerging from the Chinese Evergreens I purchased last weekend. At the time, I just had my freshly ground and used morning coffee beans... so I tried ...
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0 votes
2 answers
69 views

Liquid fertilizers and other solutions

I am searching for organic/natural ways to feed the soil & the plants and to let beneficial microbial and fungal colonies thrive. What I am not good at is timing, and the exact recipes of ...
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1 vote
0 answers
20 views

Low cost, liquid acid fertilizer

I am growing strawberries which I read prefer acid soil to alkaline one. I also read that using water that were used for beans soaking is recommended as a fertilizer. Will using it make my soil more ...
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1 vote
0 answers
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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?
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1 vote
0 answers
13 views

Why is my Miranda not coming to full pitchers and it has brown spots?

I have a Miranda Nepenthes and I've had it for about 8 months or so. It is growing like crazy but I haven't had a pitcher to get to full maturity since it came in the mail. It starts to grow pitchers ...
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2 votes
2 answers
121 views

Can I use these fertilizers for my hydroponics system?

I am planning to start growing using hydroponics. Unfortunately I'm unable to obtain fertilizers that are made specifically for hydroponics. However, I can get water-soluble fertilizers. The images of ...
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3 votes
1 answer
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Can plants in soil less culture (rockwool, coir) survive on a nitrate based nutrient solution without ammonium?

I have studied nutrient composition of fertilizers. Most soil fertilizers contain an about equal amount of nitrate and ammonium as a source of nitrogen, while most soil less fertilizers contain more ...
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