Having problems with message search?
Dear Tirso,
Thanks for your email. For the proper diagnosis of your rice problems, detail information is necessary. But, I guess you might have micronutrient deficiency problems or insect problems. Generally, zinc deficiency problems starts from 3rd week after transplanting, but the deficiency symptoms is some difference (like the color of older leaf will be light to dark bronze-red not yellow) but stunted growth is also there. In severe drought condition rice leaf will turn into yellowish orange color with growth reduction. This is Magnesium deficiency and it can be recover by keeping some water for few days in the field. Third possibility may be due to attack by "mealy bug", if you open up leaf sheath from rice plants there may be (inside the leaf sheath) several bugs covered by white cotton cover. The symptoms of this insect attack is yellowish color of the leaf with stunted growth of the plant.
You can analyze your situation and recognized what was the actually reason behind your crop. Or you can write detail about your soil type, water management system, fertility status of the soil etc. If you have still some problems, please write me. More in the next mail.
with best wishes
Rajendra Uprety
Nepal.
----- Original Message -----From: ohms73lawSent: Wednesday, December 06, 2006 6:35 AMSubject: [sri-nepal] die backDear group member,
Peace!
Recently, I conducted SRI trial farm in our area. The 1st trial is on
productive stage while the 2nd trial is still on vegetative stage. I
encountered some problem on the 1st trial. Some hills were stunted
growth and yellowing of leaves starts to occur 3 weeks after
transplanting. Yellowing starts at the tipmost part of the leaf. On
the 2nd trial I observed also few hills that has the same
abnormaliites of growth and yellowing of leaves. What was the cause of
these abnormalities? I hope you can help me out. Thanks
Warm wishes,
Tirso
Offline 
Send Email