投入有機物の種類と量が土壌理化学性ならびに温室バラの収量，品質に及ぼす影響

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書誌事項

タイトル別名
  • The Effects of Organic Amendments on Soil Property and Productivity of Greenhouse-grown 'Bridal Pink' Roses.
  • トウニュウ ユウキブツ ノ シュルイ ト リョウ ガ ドジョウ カガクセイ ナ

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抄録

The effects of organic amendments on the chemical and physical properties of soil and the productivity of greenhouse-grown 'Bridal Pink' roses were studied for four years. This trial consisted of seven synthetic soil mixes plots and were combined with two fertilizer treatments. Three plots contained 70, 50, and 30% (by volume) of an equal amount of well fermented cow manure and wood chips ; the remainder was made up of volcanic black ash soil. Three plots had similar percentage compositions of amendments except that they consisted of hemlock bark manure. The seventh plot consisted of 50% Danish sphagnum peat moss and volcanic soil. The fertilizer treatments were : A) a mixture of organic fertilizers and liquid fertilizer and B) a mixture of a soluble and slow release chemical fertilizer. Six 'Bridal Pink' plants grafted on seedlings of Rosa multiflora were planted per wooden box (72×90×30cm depth) lined with a plastic net to retain the soil. The leachings were collected periodically after watering and analyzed for nutrients. Flowers were harvested annually for four years and graded for quality. 1. No difference in yield and stem length of cut flowers was observed in the first year ; the stem lengths were shorter in the second year, especially in the 70 and 50% wood : manure mixtures.2. In the third and fourth years, a severe decrease in soil volume occurred in the 70 and 50% mixtures. The soil was replenished in these plots at the beginning of the third year ; none was added to the 30% mixture of the wood : manure and 30% bark manure plots, and 50% peat moss plot. In the third and fourth years, a slight reduction in yield occurred in the plots without soil replenishment.3. No difference in yield was noted in the first year between fertilization plots ; yield was higher in the third year in the chemical plot compared to the organic fertilizer plot.4. While large accumulations of nutrients in the soil occurred in soils containing high amounts of cow manure, analysis of the leaching showed that many nutrients were being lost by the daily watering. Hence, at replanting time, the soils were leached with excessive irrigation. The trial showed that the physical conditions of the soil could be kept favorable by the addition of peat moss, followed by that of bark manure addition. Though cow manure in large volume can improve the physical property of a synthetic soil, temporarily, for growing roses in the greenhouse, it would not suitable for long term growing because of significant decrease in gaseous phase in soil.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 67 (2), 249-260, 1998

    一般社団法人　園芸学会

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