English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

ur really helpful thanks a lot im goona chose yours as the best answer but please help me. im the one who asked the question on overuse of fertilizers i reallllllllllllllllllly wanna contact u

2006-10-04 02:06:16 · 3 answers · asked by Anonymous in Environment

3 answers

I tried to mail u again today on the alternate id given by you. that too failed. I wonder why this is happening. I gave u my mail id through the earlier message,You can get in touch. i am also eager to help you.

2006-10-06 05:38:56 · answer #1 · answered by prakash s 3 · 0 0

I am not prakash s, anyways if you need the answer i have given it below. It is quite rude of you to choose ONLY him as the best answerer.


Overuse of fertilizers could result in more harm than good. Excessive use of Nitrogen will predispose the plant to disease (blast in rice) and pest attacks due to the softer cell walls present. In some species the use of nitrogen often induces/prolong the vegetative phase of the crop and can subject the crop to pest and disease attack due to the prolonged maturation stage. Excess Nitrogen can also induce Zn and Cu deficiency. These nutrients act as a catalyst/carriers in many biochemical reactions in the cell hence their presence in insufficient quantities will result in a reduction of plant productivity. Phosphorus excess will result in a Zn and Cu deficiency similar to N. Deficiency in P will result in reduced root growth and a stunted plant, sugars and carbohydrates will accumulate in the leaves thereby predisposing the plants to attacks by pests and diseases that find the leaves ideal for feeding. Potassium is an important nutrient in plant nutrition and disease management for it enhances the ability of the plant to withstand disease attacks. In fact there is a positive correlation between K deficiency and blast incidence in rice. Calcium is essential for cell wall development, hence a deficiency of calcium will result in plants with cell walls that can be penetrated easily by pests and diseases. Excess use of either K, Mg or Ca can upset the Ca:Mg or Ca:K or K:Mg ratio in the soil this will result in the nutrient in excess being taken up by the plant at the expense of the other. This will result in the plant showing deficiency symptoms for the nutrient that is less. These critical ratios also exist for the other nutrients and creating imbalances in the system that will result in deficiency symptoms being exhibited by the crop

2006-10-04 03:07:16 · answer #2 · answered by sonali 3 · 0 0

Cupid- Loves aircrafts, is a particularly fine character and loves to reply within the P&S phase right here on Y! A.( I simply got here to understand approximately some of these matters from all of the matters) Blue Desert- He loves to trip his motorcycle, likes to look at movement films, and is keen on candies (chocolate truffle is his favourites) He is my pal.

2016-08-29 08:07:36 · answer #3 · answered by Anonymous · 0 0

fedest.com, questions and answers