I have two agricultural questions, can anyone help?

Question

1. i have some lucky bamboos for 2-3 years, they were enough healthy but recently their leaves from the top (the youngest leaves) turn to white and fell down, what should i do?

2) i have some black tulip bulbs and they were planted last november, in a strile pot in strile condition and also strile soil. (the condition were similar to green house's conditions) now i have 6 black healthy tulips flower but 4 of the bulbs are seem to be infertile when i uproot them i saw some caviar like things on the bulb while the bulbs were fragiled and crushed, any one knows why?

Answer 1

are these nematodes?

Answer 2

i dont know. good question. best answer PLEASE!

Answer 3

Your bamboo probably has a nutrient deficiency. Nitrogen deficiency will work from the bottom to the top, the older leaves being sacrificed for the younger. They tend to loose lower leaf anyway. When it happens the other way around, from top to bottom, I believe, if I remember correctly, it is calcium deficiency. Calcium is needed in the growth of the youngest parts of the plant, parts that are still basically embryonic (look with a good quality hand lens and you will see an amazing and tiny detailed plant in each new budding).There may be other nutrient issues, but it seems your plant needs the minor elements so they can metabolize the major elements. Re-pot it in a larger container and give it a quality fertilizer with guaranteed micro nutrients. Also, keep in mind that a lot of plants do not do well from rapid changes in the environment. Plants do not move in nature. So when you move them especially to a different level of light or temperature, that frequently is a big problem. The only time that happens in nature is if a tree in a forest suddenly dies or falls, affecting all plants now in the area lost to the protection of the canopy. Some die and some do well, taking over, but all change. As to the bulbs, it sounds like something moved into the pot and laid some eggs ar something. Carefully remove the bulbs and clean them up, then re-pot them, giving them a bit more room. Sounds like they might need it. Use a quality potting soil but there is no need to be sterile as a surgeon about the whole thing. Plants need their root zone to be active and they have a lot of beneficial soil organisms around their roots. Encourage this. Fertilize them with a good "low first number" (5-10-10) fertilizer with micro nutrients after they recover from potting, a couple weeks or so.

Answer 4

1) What you are describing is very typical  Iron (Fe) deficiency. You should buy some cheated Iron at your local garden supply  store. You could also stick some rusty nails into the soil and they will continue to supply enough iron for years.

http://4e.plantphys.net/article.php?ch=5...

2) Some way some fungus got to your four bulbs. Throw them out together with the soil and be happy that you got six good ones. Clean out the pots and disinfect them before trying with new bulbs. Good Luck.