All regs my friend. Just about to top off my cannabinoid system.
Goodnight.
2 Likes
Thanks thatâs what I thought but forgot that when I soaked more seeds. Should have dropped double of what I did to compensate for that.
2 Likes
Time has passed, and Iâve done more research on macros. Have a look into boron def. This may be the issue at play here.
4 Likes
Thanks for the input I will do just that.
1 Like
With Cannabis Nutrients, Hit the Boron âSweet Spotâ
Features - Cultivation Matters
Research shows there is a fine line between optimal and toxic levels of boron in cannabis. Hereâs how cultivators can get it right and grow bigger buds.
Plants, much like humans, require certain nutrients and minerals to thrive. These macro- and micronutrients help plants grow properly and complete their lifecycles, and they help growers obtain optimal yields. The micronutrient boron (B) is a necessary element for proper plant growth and development, though it is needed in small quantities. Due to the small dosage plants require, it is easy to overapply B to plants and cause damage, typically seen in the form of leaf and root necrosis or âburnâ (Fig. 1). Thus, with B nutrition, there exists a âsweet spotâ in which fertility is optimized but not overapplied. The B rates study conducted at North Carolina State University, sponsored by Pyxus International, an agricultural company with a portfolio that includes track-and-trace technology in the cannabis space, sought to determine the rate of B fertility that would optimize plant nutrient uptake and plant growth.
In plants, B is an immobile element that is necessary for cell elongation. Therefore, B cannot be moved (translocated) within the plant from the cell walls of older plant portions to satisfy the demand in newly developing plant portions. Boron impacts the stability and elongation of new plant growth and is especially essential for reproductive growth. Cannabis has a determinant growth habit, which means once the reproductive phase has been initiated, the plantâs terminal growing tips (the new growth at the top of the plant) will develop floral material. This floral material will not be able to properly develop if B is limited. This will directly impact flower size, quality and yield, which ultimately impacts a growerâs bottom line.
Figure 1. Boron toxicity manifests on the older foliage as a marginal chlorosis (yellowing) or necrosis (browning). This will progress to be a wider band of necrosis and eventually the entire leaflet margin will become necrotic, as is seen on the leaf to the right in the background. Figure 2. The zero (deficiency) boron application rate showing distortion in the youngest growth, exhibiting kinks and irregular growth, as well as a distorted growing tip. Figure 3. A deficiency of boron (B) resulting in distorted leaf development and shape, necrotic margins, and overall leaf chlorosis of the new foliage.
Photos by Paul Cockson
Vegetative Symptoms
Boron deficiency can easily develop in cannabis plants and can manifest in a variety of interesting symptoms. Initial symptoms include a noticeable distortion at the vegetative growing point (Fig. 2). In the early stages of B deficiency, cannabis plants will exhibit stunted growth and interveinal chlorosis (yellowing) starting at the leaf tips on the new growth. This chlorosis will appear to be a marginal âburn.â The interveinal chlorosis at the leaf tips will spread into the leaf margins (outside edges), and prolific interveinal chlorosis will develop on new plant growth (Fig. 2). As symptoms progress, new growth at the top of the plant (growing tips) will be noticeably distorted, with kinks in the new leaves (Fig. 2). Twists in new growth is also a common B deficiency symptom. As the interveinal chlorosis develops, the leaf tips become necrotic (brown) and abscise (fall off) (Fig. 3). One of the key intermediate symptoms to identify B deficiency is that the entire leaves will curl down (Fig. 3). This is different from calcium (Ca) deficiency in which only the leaf margins will curl down.
In advanced stages, the upper foliage of B-deficient plants will become thick and brittle to the touch when compared to the leaves of the middle and lower canopy. Often in late stages of B deficiency, entire leaves can become necrotic and drop. Additionally, the newer foliage will also appear discolored (overall necrotic appearance) and become severely distorted (Fig. 4). Portions of the leaf margin and the growing tips may become necrotic and abscise. Leaves will begin to curl and wrinkle (Fig. 4). The growing tip can die in severe cases of B deficiency; this will cause a proliferation of side shoots (axillary shoots). If B deficiency persists, these side shoots will also die, ultimately stopping flower development. Total plant collapse will occur in very advanced cases. The lower leaves will yellow and wilt (Fig. 5). These symptoms are caused by the death of the growing tipsâ root system, curtailing the plantâs water uptake.
Figure 4. Advanced symptoms of boron deficiency with overall chlorosis, distortion, wrinkling, and leaf curling on new growth, while the lower foliage (right) has developed overall chlorosis. Figure 5. The plant on the left was grown under boron-deficient conditions (0 ppm B) compared to plant on the right grown with 10 ppm B. The plant on the left is unable to support leaves due to root death caused by the B deficiency. Figure 6. Because B was only partially sufficient, the 8-week-old, mature flower bud is extremely stunted. However, B levels were high enough that there were no foliar symptoms common in B deficiency during development, and it illustrates that yields can be affected.
Flowering Symptoms
Once flower initiation begins, adequate B levels are needed for proper bud development. Plants that have acute B deficiency may not exhibit foliar symptomology. However, B-deficient plants will produce significantly smaller buds when fully matured after eight weeks of bud development when compared to plants with adequate B (Fig. 6).
In severe cases, the distorted terminal bud will quickly become necrotic and abscise from the plant. This could result in the loss of the apical cola (top cola, main bud). Plants grown under B-deficient conditions had much smaller buds when compared to plants grown with adequate B. With B being used in cell elongation, the plants grown under B-deficient conditions experienced shorter and smaller buds compared to plants grown with adequate B levels.
Findings and Conclusions
Given the results of our research, we believe that the optimal fertilization rates of B for cannabis are between 8.75 and 10 parts per million (ppm). At that range, plants were significantly larger in total plant above-ground dry weights when compared to the plants grown at 0 ppm B. The leaf tissue concentration showed an increased accumulation for all rates, with the highest rate resulting in the highest concentration of B in the leaf tissue sampled. With B also having a large impact on the flower production of cannabis, B deficiency could have a large impact on a growerâs profits. Additional research is needed to elucidate the upper ranges of B fertilization and to quantify a closer range of B toxicity levels.
The symptoms exhibited by B deficiency are like those of Ca deficiency. However, the primary difference between Ca and B deficiency is the intermediate stage. Intermediate stage B deficiency will cause the entire leaf to curl down, while intermediate stage Ca deficiency will only cause the leaf margins to curl down. Growers should be aware that the range of B deficiency and toxicity is very narrow for many crops, and the deficiency should be confirmed by a laboratory leaf tissue analysis sample before making an application to correct a problem.
Dr. Brian Whipker is professor of floriculture in the Department of Horticultural Science at North Carolina State University. Paul Cockson is a graduate research and teaching assistant at NCSU. Patrick Veazie and David Logan are undergraduate research assistants at NCSU.
@Budbrother âŚfound this great info on Boron.
After reading I donât think thatâs whatâs happened to my droop die ladies as they never showed any signs at the top of deficiency described in article.
Also as I am using Sea 90 on a regular basis I thought Iâd share what it brings to the table.
4 Likes
Didnât come across this article Iâm my research. It still has the description I was thinking of when I read on the subject. Anyway itâs what popped in my mind when I read you were still having that problem.
1 Like
Yea did show the droop effect they mentioned only plant wide all at once but definitely something drastic and fast acting when they show they go within a day or so. Iâm thinking root issues.
Well added another GL to the WeDryer this morning.
Thank you for your service
This buds for you Bob
5 Likes
I was reading this new thread about a kit for testing THC/CBD levels at home. It peaked my interest.
A friend had earlier told me about the gdp/nl strain I had recently harvested about 2 months ago yielded 28%. I had thought that was the THC level but he had meant that was the yield making some dab.
So of course I had to look into what that meant. Here is what I found.
Pretty interesting although Iâm not sure Iâll ever process mine to that extent as I feel the more anything is processed it loses some of its original offerings. But anyway for those of you who do this article is very informative.
So the yield he achieved was 28% from that strain and I guess thatâs a pretty good number based on his enthusiasm when telling me about it.
Anyway enjoy the day and may your flowers be dense and sticky
5 Likes
There must be some way outta here
Said the joker to the thief
4 Likes
In veg and seeds popping up
In flower
Whatâs wrong with this picture?
Meatloaf said it best.
2 out of three ainât badâŚhaha
5 Likes
Dried and jarred yesterday was about 32g.
Was a quick flip clone from a cow pot so very short veg time.
3 Likes
Havenât heard this little ditty for quite awhile.
Enjoy
5 Likes
Thought this had some good stuff for growing
Keep feeding your cannabinoid system folks
2 Likes
SEA-90 fertilizer is natural mineral crystals produced by solar dehydration of sea water trapped in retention ponds in a very arid and pristine coastal region devoid of industry or agriculture. The particular sea utilized by SeaAgri is considered as one of the most diverse in marine life and minerals on earth. The full spectrum minerals and trace elements contained in SEA-90 are exactly proportioned and balanced as in sea water to sustain optimum biological life. Consider that the elements in sea water are at essentially the same ratios as human blood, and that sea life living in pure and balanced ocean water seems immune to most cancer and other degenerative diseases. SEA-90 fertilizer is the product of 40 years of extensive research by Dr. Maynard Murray and SeaAgri proving that soils and crops enhanced or remineralized with full spectrum sea minerals and trace elements grow crops superior to those grown solely with conventional fertilizers. SEA-90 can be broadcast directly on the soil surface and allowed to absorb into the soil or dissolved and sprayed directly onto growing crops and plants. Max 1/8â (2mm) or less crystal size. Dissolves easily due to small particle size. 98-99% water soluble (some sediment might be present). Best used in hydroponic nutrient formulas and as foliar spray or liquid row support on all pasture, vegetables, row crops, small fruits, tree fruits and nuts. Dissolve and add to compost tea to enhance microbial activity. Combine, mix and apply with other fertilizers.
4 Likes
Fiskars honoring their lifetime warranty.
Had a spring break on my fiskars mini pruners and without thinking ordered another pair of fiskars even though there are other less expensive ones out there. When I received the new ones before tossing out the packaging I read the back and it had warranty info so I emailed Fiskars and they required a pic of mine of the broken snips which I provided and they sent me this.
Pretty awesome and now I have one pair for upstairs and one for downstairs.
10 Likes
Thatâs great!
2 Likes
Happy Christmas and Merry New Year to all and to all a good life!
Santa clausannibis was good to me todayâŚ
Hung away from the fire with care
The two amazon ladiesâŚthank you for your service!
7 Likes
Merry Christmas, happy New year.
Congrats on the harvest!
3 Likes
Happy holidays my friend,
Congrats on a bountiful harvest 
2 Likes