SEA AREA FERTILIZER APPLICATION MATERIAL, AND PRODUCTION METHOD AND INSTALLATION METHOD OF SEA AREA FERTILIZER APPLICATION MATERIAL

To provide a sea area fertilizer application material which is an organic fertilizer superior in sustainability, the fertilizer application material capable, while using a poultry manure-derived material as a principal constituent, of realizing the elution of a nutrient component suitable for growing the algae which becomes feed to plant-eating bivalves and of effectively improving the growth and survival rate of the bivalves.SOLUTION: A sea area fertilizer application material of this invention consists of a compressed molded body including 12 pts.wt. of fermented poultry manure, 2-6 pts.wt. of granular iron, 1-4 pts.wt. of magnesium oxide, and water in such an amount that the water content of the sea area fertilizer application material is 45-60 wt.%. The magnesium oxide is added to adjust the elution of phosphorus derived from the fermented poultry manure and is formed in a columnar shape of 10-30 cm in height and 15-30 cm in width.SELECTED DRAWING: Figure 3 【課題】持続性に優れた有機肥料であって鶏糞由来のものを主要な構成材料としつつ、植食性二枚貝の餌となる藻類の生育に適した栄養成分の溶出を実現でき、更には二枚貝の成長と生残を効果的に上げることができる海域施肥材を提供する。【解決手段】12重量部の発酵鶏糞と、2〜6重量部の粒状鉄と、1〜4重量部の酸化マグネシウムと、後記海域施肥材の水分含量が45〜60重量％となる量の水とを含む圧縮成形体よりなることとした。また、酸化マグネシウムは、発酵鶏糞由来のリンの溶出の調整を目的として添加していることや、高さ10〜30cm、幅15〜30cmの柱状としたこと等にも特徴を有する。【選択図】図３