Rice cultivation has become less profitable in recent years due to
increasing production cost and plateauing yield levels. Although
direct seeding of rice in the low lands is a cost effective and
labour saving method of crop establishment, excessive weed growth,
leading to high production costs and low productivity, is a major
constraint and it dramatically reduces the nutrient use efficiency.
Scarcity and high costs of organic manures also constrain rice
productivity. Concurrent growing and incorporation of green manure
crops at 30 days after sowing either by cono weeding or by spraying
herbicides could provide the organic manure requirement of rice
besides reducing weed infestation of the crop field, which is a
major problem in direct seeded rice culture. The peak nitrogen
release from concurrently grown green manure crops coincides with
the critical growth stages of rice, the panicle initiation stage,
and thereby ensure availability of N at the critical stages and can
reduce the N requirement up to 25% and increase the soil fertility
status and the yield of succeeding transplanted rice crop. This
technology is a cost effective practical model for sustainable rice
production.
General
Imprint: |
Lap Lambert Academic Publishing
|
Country of origin: |
Germany |
Release date: |
December 2011 |
First published: |
December 2011 |
Authors: |
Anitha Sarala
• Jose Mathew
|
Dimensions: |
229 x 152 x 13mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
232 |
ISBN-13: |
978-3-8473-1444-8 |
Categories: |
Books
|
LSN: |
3-8473-1444-0 |
Barcode: |
9783847314448 |
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