Description:
Abstract: "At present maize?green gram crop rotations are not widely practiced among farmers
in Myanmar. However, this cropping system might become more popular in the future
given raising prices for green gram and maize grain and scarcity of mineral nitrogen (N)
fertilizers in this Asian country. The results of a cropping systems experiment with
continuous maize versus a green gram-maize rotation, manure application (0 and 2 tha−1) and phosphorus (P) fertilization (0 and 15 kg P ha−1) in each of five consecutive
seasons revealed a strong decline in total dry matter and grains yields for both
crops irrespective of the treatment. Treatment effects on yield components, nutrient
concentrations, mycorrhizal infection and nematode infestation were small or negligible.
The data show that in addition to manure used at 2 t ha−1, application of mineral N
fertilizers is essential to maintain particularly maize yields. A comparison of different
green gram cultivars did not indicate genotype specific effects on maize growth. The
incorporation of legume residues, unless they are used as animal feed, is recommended
to increase the recycling of N and to balance N fluxes when green gram is cultivated for
seed."
Source/publisher:
Journal of Agriculture and Rural Development in the Tropics and Subtropics Volume 109, No. 2, 2008, pages 123?137
Date of Publication:
2008-00-00
Date of entry:
2016-03-08
Grouping:
- Individual Documents
Category:
Language:
English
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Format:
pdf
Size:
190.49 KB