Answers To Your Questions About Growing Tomatoes Under Watering
Robert asks…
Two groups of tomatoes were grown under laboratory conditions, one with humus added … BIO QUEST!!?
Two groups of tomatoes were grown under laboratory conditions, one with humus added to the soil and one a control without the humus. The leaves of the plants grown without humus were yellowish (less green) compared with those of the plants grown in humus-enriched soil. The best explanation for this difference is that
A)the humus made the soil more loosely packed, so water penetrated more easily to the roots.
B)the heat released by the decomposing leaves of the humus caused more rapid growth and chlorophyll synthesis.
C)the humus contained minerals such as magnesium and iron, needed for the synthesis of chlorophyll.
D)the healthy plants absorbed chlorophyll from the humus.
E)the healthy plants used the food in the decomposing leaves of the humus for energy to make chlorophyll.
Which of the following letters!?!?! Thanks.
Green Thumb answers:
C) humus contained minerals such as magnesium and iron.
Helen asks…
Hi folks, this question is about tomatoes,?
one of the kids is growing tomato plants on their balcony, she has green ones growing but the problem is all of the tomatoes have black on the bottoms, like they are rotting, any ideas ?? Thank You so much !!! We wonder if the pots they are in are too small,? Or over watering or under watering ? Also should she be pruning them ? Thanks alot !!!
Green Thumb answers:
Lack of Calcium. Called black Bottom Rot. You can add calcium to the pots soil, but the ones that currently have it are ruined.
Susan asks…
Growing veg and salad, what next!?
So I wanted to grow some veg and salad in the garden with my toddler as we live in the city, so I wanted her to know where food comes from, not just asda lol. We planted the seeds in large pots some on the patio, some in the greenhouse. They plants have all started growing and we have been watering them every day. The trouble is, I dont have a clue what Im doing! I mean, what veg grow under the soil and which grow on top? Should I be feeding the plants or is watering enough? If I pick things like the salad leaves will they grow back? The cucumber plants leaves are going a bit brown on the edges, but still no cucumbers, why are they going brown? Here is a list of what we have planted, all have got plants, the only ones Im sure about where the fruit/veg grows are the chillis, tomatoes and potatoes. The salad leaves are tiny but already going brown on the edges, what am I doing wrong? thanks
mini gem lettuce
salad leaves
cucumbers
tomatoes
spring onion
red and white onion
potatoes
aubergine
peppers
sweetcorn
thanks for your help xx
lol I have the sweetcorn in a pot boris, oh dear!!
Green Thumb answers:
You need to grow your sweetcorn in the garden in rows. These grow overground.
Your potatoes grow underground,you can grow these in the garden or in deep tubs/pots.
Cucumbers and aubergines grow overground, best grown in a greenhouse.
You can grow peppers in pots on the windowsill,these grow from the top of the plant.
The onion bulbs grow around the base of the plant underground but as they ripen you need to lift them up a little for the bulbs to catch the sun.
Spring onions can be left to grow till ready,the onions will be at the base of the plant.
Young salad/herb leaves can be sown and picked at regular intervals,every few weeks, either in pots or rows in the garden,pick when young.
You can grow tomatoes in large pots or growbags,they need plenty of light,as do the cucumbers and grow from the stems overground.
Do not overwater,water when dry making sure there is enough water to soak down to the roots. Tomatoes need a little more water than the other plants.
Maria asks…
Help – the leaves on my tomato plants are turning yellow at the bottom ….?
…. after they go wizened first. They are cherry tomatoes and are growing outdoors (SW UK) Is this down to over/under watering? Too cold at night still? The flowers are forming okay and the tops of the plants are fine. Suggestions please.
I’ve fed them.
Green Thumb answers:
Since you’ve been careful when you watered & fed your plants, and because the top leaves are healthy & flowers are forming, it’s most likely that your plants are just going through the natural process of the older leaves on the bottom turning from green to yellow, plus the shock to the plants of going from the heat of the day to the sudden coldness at night.
When this happens to my plants, I just remove the yellowed leaves.
Hopefully, the article below should help reassure you that it’s just nature doing it’s thing, & not anything that you have done that’s causing the yellowing of the bottom leaves of your plant.
[For future reference, I've included this site which lists several reasons why leaves on plants will turn yellow. While it's true that too much water will choke roots and very often causes leaf yellowing, ... Too little water, or a sudden unexpected cold or ongoing excess heat can also cause the plant's leaves to turn yellow . Also, moving a plant to a new location, overfertilizing or plants lacking certain nutrients, etc.]:
http://mgonline.com/articles/yellow_leaves.aspx
Good luck!!! Hope this helps.
Mandy asks…
Question about growing Bell Peppers?
Im looking for help, I planted 2 tomato plants, 1 cucumber plant, and one green bell pepper plant about 3 weeks ago.
I have seen the tomato plants grow nearly double the size, and the cucumber plant seems to be doing well also.
The pepper plant however has not grown much (if at all) But I noticed that it is (A) growing more leaves and (B) quite green, so until today I just assumed it was healthy and perhaps that is how they grow.
But when watering this morning I decided to inspect it up close, and I noticed when I looked under the leaves, that the places where a stem breaks into 2 stems as you look from the bottom up (sorry I don’t know the terminology because I am new to this) there is a black patch where it splits up.
Is this normal or is it some kind of parasite?
If it helps any, I live in southeastern Ontario.
Green Thumb answers:
First, understand that bell pepper plants do not grow as quickly or as large as tomato plants. They stay relatively small. Without seeing a photo of the “black patch,” it is hard to determine if anything is wrong. My pepper plants often have a black area where shoots form and it is perfectly normal. My guess is that your plants are perfectly normal and only need a little bit of time to grown.
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