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Evaluation of Nitrogen Availability Based on the Amount of Extractable Soil Organic Nitrogen and Suggestion for the Proper Fertilization in Rain Shelter-grown Spinach
fertilization manure compost nitrogen uptake sulfate-extractable organic nitrogen
2010/11/24
Absorbance at 280 nm in soil extracts with 0.4 M sulfate solution was highly correlated with the concentration of total N in the extracts of different soils. Therefore, we proposed an easy detection p...
The Availability of Carbonized Pruned Shoot of Japanese Pear as Vegetable Growing Media
Availability Shoot of Japanese Vegetable Growing
2009/7/10
The availability of charcoal as vegetable growing media was discussed from the perspective of recycling agricultural wastes. The charcoal was made from pruned shoot of Japanese pear (Pyrus pyrifolia v...
Verification of Availability of Drained Solution-reusing Rockwool System for Commercial Production of Tomato
environmental burden fertilizer cost nutrient solution rockwool culture
2009/7/9
Tomato plants (Lycopersicon esculentum Mill., cv. House-Momotaro) were grown in a grower’s greenhouse (0.4 ha) using a commercial open rockwool system and a similar system equipped with a solution-rec...