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Showing items 1 through 9 of 25.LandLibrary Resource
30 December 1980
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Netherlands
LandLibrary Resource
30 December 1980
Venezuela, Brazil, Central America, South America
Different nutritional deficiencies or toxicities may limit bean development and yield. N and P deficiencies are the most frequent, although deficiency of minor elements and Al/Mn toxicity can reduce yields considerably.
LandLibrary Resource
30 December 1980
Colombia, Central America, South America
Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P.
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