Change in method of crop establishment from traditional
transplanting of seedlings to direct seeding has occurred in many
rice growing countries in response to increasing production cost,
especially for labour and water. It also aids in quick rice
establishment, early harvest and thus early sowing of wheat. Sowing
of pre-germinated rice seeds under puddled condition either
manually or drum seeding method reduces the demand of water for
puddling and minimized the emergence of weed flora by placing the
seed, stems and stolens of weeds into sub-surface. Direct seeded
rice is subjected to greater weed competition because both weed and
crop seeds emerge at the same time and compete with each other from
the germination as a result less grain yield. Uncontrolled weeds
reduce the yield by 96 % in dry seeded rice and 61% in wet seeded
rice. Control of weeds is important to reduce the weed competition
as well as to maximize the efficient utilization of resources.
Herbicides are considered to be an economical alternative to manage
weeds against age-old practice of hand weeding, which is costlier
and also becomes impracticable.
General
Imprint: |
Lap Lambert Academic Publishing
|
Country of origin: |
Germany |
Release date: |
December 2011 |
First published: |
December 2011 |
Authors: |
Mandhata Singh
• R.P. Singh
|
Dimensions: |
229 x 152 x 11mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
196 |
ISBN-13: |
978-3-8473-1156-0 |
Categories: |
Books
|
LSN: |
3-8473-1156-5 |
Barcode: |
9783847311560 |
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