Abstract
Jujube is a deciduous broad-leaved tree belonging to the buckthorn family(Rhamnaceae) and is widely cultivated in Southeast Asia and Southeast Europe, including Korea and China and mainly consumed medicinal herbs or dried jujube. In recent years, consumption of fresh fruits has increased, and organic orchard has also increased. The purpose of this study was to investigate soil chemical changes and growth characteristics of jujube when replacing the total amount of nitrogen fertilizer with organic matter in rain shelter house. In March 2017, after soil testing, bark, animal compost, rice bran, oil cake and chemical fertilizers (NPK) were treated based on nitrogen content. After treatment of organic materials, by March 2020, the pH increased and organic matter, phosphoric acid and cation content in soil increased. After harvest of jujube, the yield of compost treatment was the highest and the NPK treatment was the lowest. The length, hardness and weight of fruit were greater in the NPK treatment, but the diameter and sugar content were not significantly different from the organic material treatments except rice bran. Therefore, when the cultivation of the jujube, nitrogen fertilizer was totally replaced with organic material, there was the effect of improving soil chemistry, such as an increase in the organic content of the jujube orchard and an increase in the yield of jujube but no clear effect on fruit quality. Yield of jujube by organic materials treatment.
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Claims 5
Claim · model-written summary
Organic amendments increased soil pH by March 2020.
Verbatim
e0“After treatment of organic materials, by March 2020, the pH increased and organic matter, phosphoric acid and cation content in soil increased.”
t0“Jujube”
Claim · model-written summary
Organic amendments increased soil organic matter, phosphoric acid and cation content by March 2020.
Verbatim
e0“After treatment of organic materials, by March 2020, the pH increased and organic matter, phosphoric acid and cation content in soil increased.”
t0“Jujube”
Claim · model-written summary
Compost produced the highest jujube yield and NPK the lowest.
Verbatim
e0“After harvest of jujube, the yield of compost treatment was the highest and the NPK treatment was the lowest.”
Claim · model-written summary
Fruit length, hardness and weight were greater with NPK.
Verbatim
e0“The length, hardness and weight of fruit were greater in the NPK treatment, but the diameter and sugar content were not significantly different from the organic material treatments except rice bran.”
t0“Jujube”
Claim · model-written summary
Fruit diameter and sugar content did not differ significantly between NPK and organic amendments other than rice bran.
Verbatim
e0“The length, hardness and weight of fruit were greater in the NPK treatment, but the diameter and sugar content were not significantly different from the organic material treatments except rice bran.”
t0“Jujube”
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