Breaking The Acid Barrier
The acidity present in the subsoil of many upland areas prevents plant roots from reaching the moisture and nutrients therein, thus reducing crop yield. Adding lime to the subsoil is not practical, but in 1994 IRRI and Indonesian scientists began experiments to see if components of lime applied to the soil surface could be leached down into the subsoil. This would be done by manipulating soil chemistry and using deep-rooted, acid-tolerant rice cultivars to help capture the leached components.
At present they are studying the processes that govern the rate of leaching of lime components and their accumulation in the subsoil. They plan then to construct mathematical models that will be used to develop practical technologies and to indicate under what conditions the technologies might be effective.
The experiments began at the Upland Rice Research Consortium site at Sitiung, Indonesia. French collaborators from l'Institut francais de recherche scientifique pour le developpement en cooperation are planning similar experiments in Thailand and Vietnam.
Read more about this topic: Upland Rice
Famous quotes containing the words breaking the, breaking and/or barrier:
“There’s kind of a Sleeping Beauty magic about the kid. I thought I’d done something toward breaking the spell. Seems not. Prince Charmless, that’s me.”
—Dodie Smith, and Lewis Allen. Roderick Fitzgerald (Ray Milland)
“Every incident connected with the breaking up of the rivers and ponds and the settling of the weather is particularly interesting to us who live in a climate of so great extremes. When the warmer days come, they who dwell near the river hear the ice crack at night with a startling whoop as loud as artillery, as if its icy fetters were rent from end to end, and within a few days see it rapidly going out. So the alligator comes out of the mud with quakings of the earth.”
—Henry David Thoreau (1817–1862)
“The hearts of Afro-American women are too warm and too large for race hatred. Long suffering has so chastened them that they are developing a special sense of sympathy for all who suffer and fail of justice.”
—Fannie Barrier Williams (1855–1944)