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Puzzling soil test result
Hi all, I just did a soil test on my newly created veggie beds.
Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ....and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? The test kit is called a "Mini Soil Test Kit", containing four vials, each with a different clour cap, and two each of four different chemical (each in a capsule, which you pull in two and add content to the liquid in the vial). I followed the instructions to the letter. My soil is somewhat clayey and sandy and has had a fair bit of last years compost dug into it. What is the cheapest way to add potash and phosphorous (assuming I need it)? Thank you, Jake |
#2
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Puzzling soil test result
On Feb 13, 7:32*pm, JakeD wrote:
Hi all, I just did a soil test on my newly created veggie beds. Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ...and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? The test kit is called a "Mini Soil Test Kit", containing four vials, each with a different clour cap, and two each of four different chemical (each in a capsule, which you pull in two and add content to the liquid in the vial). I followed the instructions to the letter. My soil is somewhat clayey and sandy and has had a fair bit of last years compost dug into it. What is the cheapest way to add potash and phosphorous (assuming I need it)? Thank you, Jake I'd check the package and see if you can contact the firm making the kit, could be faulty, |
#3
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Puzzling soil test result
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#4
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Puzzling soil test result
On 13 Feb 2012 19:32:04 GMT, JakeD wrote:
Hi all, I just did a soil test on my newly created veggie beds. Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ...and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? The test kit is called a "Mini Soil Test Kit", containing four vials, each with a different clour cap, and two each of four different chemical (each in a capsule, which you pull in two and add content to the liquid in the vial). I followed the instructions to the letter. My soil is somewhat clayey and sandy and has had a fair bit of last years compost dug into it. What is the cheapest way to add potash and phosphorous (assuming I need it)? Thank you, Jake You've got a funny mix of soil there - clay and sand, soils are usually one or the other, unless the sand has been added maybe? Clay soil will usually be pH 7 or lower - tending toward the acid. Chalky soils are the alkaline ones, unless lime has been added maybe? Has builders' sand been dug in perhaps? This will tend to upset the pH balance, unlike horticultural sand. What was growing there before you created the veg patch? The results of your tests just don't seem right. Chemical soil test kits often have a use by date on them - does yours and it is past? I'd place a bet on the kit delivering faulty results. I'm not a believer in them, to be honest. Soil pH testing's one thing but as far as everything else is concerned, I play "by ear". Deficiencies of various things will show in specific ways and you can react to them quite easily. Cheers, Jake ======================================= Urgling happily from the dryer end of Swansea Bay where the four seasons are salt,pepper,mustard and vinegar. |
#5
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Puzzling soil test result
On 13/02/2012 19:32, JakeD wrote:
Hi all, I just did a soil test on my newly created veggie beds. Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ...and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? Dunno, but I would hazard a guess that the indicator they used preferred adsorbing onto the clay particles to staying in solution. The test kit is called a "Mini Soil Test Kit", containing four vials, each with a different clour cap, and two each of four different chemical (each in a capsule, which you pull in two and add content to the liquid in the vial). I followed the instructions to the letter. My soil is somewhat clayey and sandy and has had a fair bit of last years compost dug into it. What is the cheapest way to add potash and phosphorous (assuming I need it)? In a clay soil I probably wouldn't worry too much about supposed nutrient deficiencies in a test kit. The test only measures easily soluble components, but a lot of the goodness of the soil is locked up in very fine clay particles which plants roots can gradually access. Cheapest way to add some potash is the ashes from a bonfire or wood burning stove. No coal or CCA treated timber though! A bit of unburnt charcoal does not harm either - onions seem to love it on clay soils. (Coal ash contains to much boron which is bad for plants and heavy metals that are bad for us) You probably don't want the more obvious and expensive garden centre potassium nitrate since you are already surplus in nitrogen. -- Regards, Martin Brown |
#6
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Puzzling soil test result
On Feb 13, 9:29*pm, Jake Nospam@invalid wrote:
On 13 Feb 2012 19:32:04 GMT, JakeD wrote: Hi all, I just did a soil test on my newly created veggie beds. Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ...and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? The test kit is called a "Mini Soil Test Kit", containing four vials, each with a different clour cap, and two each of four different chemical (each in a capsule, which you pull in two and add content to the liquid in the vial). I followed the instructions to the letter. My soil is somewhat clayey and sandy and has had a fair bit of last years compost dug into it. What is the cheapest way to add potash and phosphorous (assuming I need it)? Thank you, Jake You've got a funny mix of soil there - clay and sand, soils are usually one or the other, unless the sand has been added maybe? Clay soil will usually be pH 7 or lower - tending toward the acid. Chalky soils are the alkaline ones, unless lime has been added maybe? Has builders' sand been dug in perhaps? This will tend to upset the pH balance, unlike horticultural sand. What was growing there before you created the veg patch? The results of your tests just don't seem right. Chemical soil test kits often have a use by date on them - does yours and it is past? I'd place a bet on the kit delivering faulty results. I'm not a believer in them, to be honest. Soil pH testing's one thing but as far as everything else is concerned, I play "by ear". Deficiencies of *various things will show in specific ways and you can react to them quite easily. Cheers, Jake ======================================= Urgling happily from the dryer end of Swansea Bay where the four seasons are salt,pepper,mustard and vinegar.- Hide quoted text - - Show quoted text - Builders "sand" is somtimes crushed limestone (ie from the quarry rather than the sea/gravel pit). Has a dramatic effect on ph obviously. If the grains of sand are all the one colour it's probably is just that. Dunno about the phosphorous. |
#7
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Puzzling soil test result
Jake Nospam@invalid wrote in news:2lvij7du0lql49qhbpgigkl1hbggr25ide@
4ax.com: You've got a funny mix of soil there - clay and sand, soils are usually one or the other, unless the sand has been added maybe? Clay soil will usually be pH 7 or lower - tending toward the acid. Chalky soils are the alkaline ones, unless lime has been added maybe? Has builders' sand been dug in perhaps? This will tend to upset the pH balance, unlike horticultural sand. What was growing there before you created the veg patch? The results of your tests just don't seem right. Chemical soil test kits often have a use by date on them - does yours and it is past? I'd place a bet on the kit delivering faulty results. I'm not a believer in them, to be honest. Soil pH testing's one thing but as far as everything else is concerned, I play "by ear". Deficiencies of various things will show in specific ways and you can react to them quite easily. Thanks. I'm in the dark about the history of the plot. I do know that the substrate is white limestone, shale and sandy grit, intermixed with clay (as quite common in coastal regions, I think). Most of the topsoil contained lots of small to large flat white limestone rocks. I found one place where there was old builing rubble under the topsoil, such as pieces of lime mortar. When I acquired the plot, a couple of years ago, the 'garden' in question looked exactly like a typical farmer's field: long grass of various kinds, including couch grass. It has probably been used for grazing animals at some stage in its long history. I'm surprised to hear you say that clay soils are usually tending towards acid. I don't think that's the case in my area, because of all the limestone. I may be worrying too much about the nutrient content. I did plant a few vegetables last year: tomatoes and beans and broccili, and they grew perfectly healthily. Weeds absolutely LOVE the soil here. There is one weed (something edible, and related to celery, I'm told), with very deep tuberous roots, that I have been at war with constantly. The roots go so deep that it is almost impossible to dig them out. My latest battle-plan has been to use weed killer. We'll see if that works. JakeD |
#8
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Puzzling soil test result
Martin Brown wrote in
: On 13/02/2012 19:32, JakeD wrote: Hi all, I just did a soil test on my newly created veggie beds. Here is the result: Alkalinity: pH 8.0 Nitrogen: sufficient to slightly surplus Potash: deficient ...and then there was the Phosphorous test which is the puzzling one! The liquid was supposed to turn blue, to a greater or lesser degree, but it didn't! It turned a very pale amber (the colour of the average lager or cider). What does this indicate? Extreme phosphorous deficiency?? Dunno, but I would hazard a guess that the indicator they used preferred adsorbing onto the clay particles to staying in solution. Following the instructions, I addeda measured amount fo the soil to water, shook it for a measured time and then let the water settle for a measured period, before adding the solution to the vials. I don't think there was much solid matter in the water - unless it was microscopic particles. The solution looked almost clear, if somewhat murky. In a clay soil I probably wouldn't worry too much about supposed nutrient deficiencies in a test kit. The test only measures easily soluble components, but a lot of the goodness of the soil is locked up in very fine clay particles which plants roots can gradually access. Yes, I wondered about that. As I said to Jake a moment ago, weeds absolutely love the soil. So did the broccili and tomatoes I planted last year. Cheapest way to add some potash is the ashes from a bonfire or wood burning stove. No coal or CCA treated timber though! A bit of unburnt charcoal does not harm either - onions seem to love it on clay soils. Thanks. I will add some. I gather potash is good for beans, because it promotes flowering. JakeD |
#9
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Puzzling soil test result
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#10
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Quote:
A really cheap method is to water the garden with grey water collected from your clothes washing machine, because there are phosphates in washing powder. Though this is not slow release. |
#11
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Puzzling soil test result
Bonemeal is a relatively cheap way of adding phosphorus (correct
spelling), and is slow release. *Bones contain a lot of calcium phosphate. *Also contains some nitrogen. And if you have Foxes around they will dig like mad trying to find the meat. |
#12
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Puzzling soil test result
On 14/02/2012 11:21, Janet wrote:
I'd be very wary of trusting that particular kind of unidentified weed to be safely edible; " tuberous root and celery look" includes some of the most poisonous. I think that Socrates might agree with you... -- Jeff |
#13
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Puzzling soil test result
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#14
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Puzzling soil test result
Dave Hill wrote in news:9d1a56a3-8fa0-4383-
: Bonemeal is a relatively cheap way of adding phosphorus (correct spelling), and is slow release. *Bones contain a lot of calcium phosphate. *Also contains some nitrogen. And if you have Foxes around they will dig like mad trying to find the meat. I'm glad you mentioned that! (I have LOADS of foxes in my vicinity)! Jake |
#15
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Puzzling soil test result
Janet wrote in
: In article , says... I may be worrying too much about the nutrient content. Rain will leach out nutrients over time, and plants take them up; so they are a diminishing resource and to keep cropping the same soil gardeners have to replace the lost nutrients. There is no instant, lasting one-off solution, look on it as a permanent program of soil improvement.To redress the stony alkaline soil you have I'd recommend copious amounts of homemade compost (which tends towards acidic); so start thinking where you can obtain large amounts of vegetable matter and manure to make it with. Thanks for the tip. Luckily I have an abundant source of free hoss poo. There is about one ton of it currently composting in t'garden. When I dig it in to t'veggie patch next autumn, I will start a new compost heap for the following year. I did plant a few vegetables last year: tomatoes and beans and broccili, and they grew perfectly healthily. Weeds absolutely LOVE the soil here. There is one weed (something edible, and related to celery, I'm told), with very deep tuberous roots, that I have been at war with constantly. The roots go so deep that it is almost impossible to dig them out. My latest battle-plan has been to use weed killer. We'll see if that works. I'd suggest you build a compost heap and to fill it, keep cropping the "celery like" topgrowth hard. Constantly frustrating photosynthesis will eventually cause the roots to die in situ. It hasn't happened yet, after two years of hacking the root with a mattock every time one rears it's pretty green head! I will keep hacking though. I'd be very wary of trusting that particular kind of unidentified weed to be safely edible; " tuberous root and celery look" includes some of the most poisonous. Luckily, it seems to be the non-poisionous! I took my friend's word that it was edible, and ate a pice of stem and leaves with no ill effect. I was going to see if the roots are cookable and palatable. If so I'll treat them with less animosity! JakeD |
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