Effects of Soil Fertility Management Practices on Nutrient Availability and Yield of Rice in Myanmar (eBook, PDF)
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In recent years in Myanmar, like elsewhere in Asia, great efforts have been made to intensify the production of rice (Oryza sativa L.) to feed a rapidly growing population. Most of these efforts concentrated on lowland ‘paddy’ fields that were subjected to irrigated doubleand triple-cropping systems. However, even there rice yields are stagnating at about 3 t ha-1 per harvest which is likely due to inadequate application of nutrients, mainly mineral nitrogen (N) and manure, sub-optimal management of cropping sequences and water and to other still unknown factors such as intensifi...
In recent years in Myanmar, like elsewhere in Asia, great efforts have been made to intensify the production of rice (Oryza sativa L.) to feed a rapidly growing population. Most of these efforts concentrated on lowland ‘paddy’ fields that were subjected to irrigated doubleand triple-cropping systems. However, even there rice yields are stagnating at about 3 t ha-1 per harvest which is likely due to inadequate application of nutrients, mainly mineral nitrogen (N) and manure, sub-optimal management of cropping sequences and water and to other still unknown factors such as intensification-induced changes in soil quality. To investigate yield constraints and options to overcome these, a multi-factorial experiment was conducted for six seasons from 2001-2003 at the two agro-ecologically contrasting field sites of Hmawbi and Yezin in lower and upper Myanmar, respectively.
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