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Salt accumulation and ion imbalance caused by residual fertilizer in greenhouse cultivation have been serious problems in Japan since the 1970s, when the area of greenhouse cultivation began to increa...
The influence of planting density on root growth and its relationship to leaf and tuber growth were investigated with two maincrop varieties in the potato. Three levels of planting density were exami...
We surveyed the actual levels of nitrogen application in the productive region of green tea in northern Mie prefecture and investigated the physico-chemical properties of the soils and root growth in ...
We investigated the effect of localized deep application of compost using a labor-saving excavation machine on the yield and root growth of the Japanese pears tree, ‘Kousui’, which shows decreased yie...

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