this study was conducted using one hundred and eighty (180) day-old broiler chicks, of anak strain to assess the levels of inclusion of indomie waste meal as a substitute for maize at 0, 25, 50, 75 and 100%. the birds were randomly assigned to dietary treatments using completely randomized design (crd). each treatment contained 3 replicates and each replicate had 6 birds. the study lasted for e...

655 Fresh water is under pressure in the humid tropics from population growth, land use and climate change, all of which are influenced by humans. These pressures are likely to have profound consequences. Here we present a research vision for the humid tropics as an outcome of a community workshop held in Hawaii in March 2011. This report includes various perspectives from the international sci...

studies of rainfall variation generally focus on large areas. for example, in india, the area average monsoon rainfall series of the whole country or meteorological subdivisions are used. this would be of no use for local agriculture, particularly in places where rainfall is very high or very low, especially for crops like small cardamom and vanilla which are very sensitive to soil moisture and...

深く考えず海外で研究を始めた著者が, 熱帯湿潤域のマレーシアで研究する理由を見つけるまでの経験を記す.

Warmth, moisture, and constancy are the environmental factors responsible for the potentially high productivity of the humid tropical lowlands. Ironically, they are also the biome’s greatest ecological constraints to agriculture. Chemical weathering increases with temperature and is three to six times faster in the tropics than in the temperate zone (125, 250). This frequently leads to the deve...

As commonly defined, the tropics comprise that region of the earth lying between the Tropics of Cancer and Capricorn, constituting 38% of the larid surface (5 x 109 ha). The tropics may also be defined as those areas with mean temperatures greater than 18'C in all mor.ths of th. year. A third definition of the tropics specifies those areas with soils in which the tempera­ ture at a depth of 50 ...