A low-input cropping system has been developed at Yurimiaguas, Peru, to serve as a transition technology between shifting and continuous cultivation for acid soiln of the humid tropics. Principal features are slash-andburn clearing, rotation of acid-tolerant upland rice and cowpea cultivars, maximum residue return, no tillage, and no lime or fertilizer apoiications. When yields decline as a res...

This study is the first of its kind to quantify possible effects of climate change on rice production in Africa. We simulated impacts on rice in irrigated systems (dry season and wet season) and rainfed systems (upland and lowland). We simulated the use of rice varieties with a higher temperature sum as adaptation option. We simulated rice yields for 4 RCP climate change scenarios and identifie...

Under the National Poverty Eradication Programme (NPEP) overall visions for agriculture, integrated watershed management and forestry seek to coordinate sectors in facilitating a holistic transformation of upland livelihoods to reduce rural poverty and conserve natural resources. Operational policies, however, still centre on stabilising shifting cultivation, eliminating opium production, land ...

The major quantitative trait locus (QTL) Phosphorus uptake1 (Pup1) confers tolerance of phosphorus deficiency in soil and is currently one of the most promising QTLs for the development of tolerant rice (Oryza sativa) varieties. To facilitate targeted introgression of Pup1 into intolerant varieties, the gene models predicted in the Pup1 region in the donor variety Kasalath were used to develop ...

Multifunctional microorganisms can significantly affect root and shoot development of upland rice seedling that could provide an increase in the crop grain yield. The objective this study was to determine effect single combined microorganism on seedlings. experiment arranged a completely randomized design with treatments consisting seeds treated multifunctional (M01 (Serratia marcescens), M02 (...

The objectives of the study are (1) to find out growth and productivity upland rice, (2) high rice varieties feasibility farming between oil palm plants. This activity was carried in area young plantations aged 2 years Pelayangan Village, Muara Tembesi sub District, Batanghari Jambi Province from May August 2016. were Inpago 5, 8, 9 local with 1 ha area. results showed that variety gave highest...