應用微生物改善作物栽培土壤地力研究
Other Title
Application of Microorganisms to Improve Soil Fertility for Crop Cultivation
Series/Report No.
臺中場特刊; 155
Part Of
微生物資源提升作物耐候能力技術發展研討會論文輯
Start Page
109
End Page
124
ISBN
9786267454572
Date Issued
2024-09
Author(s)
Abstract
臺灣坡地柑橘果園由於水源不足，抗旱能力低落，在柑橘果實發育期與肥大期，若逢乾旱可能引起落花、落果與小型果比率高，嚴重影響柑橘之果實產量與品質。本文將介紹叢枝菌根菌Rhizophagus clarus在提高柑橘砧木(酸桔)與椪柑嫁接苗之耐旱能力及施肥效益，並探討叢枝菌根菌R. clarus在改善栽培土壤地力之潛力。試驗結果顯示：(1) 酸桔苗接種R. clarus可減少澆水量
20%，(2) 酸桔苗接種R. clarus可減少施肥量 50%， (3) 酸桔苗接種R. clarus可顯著(P＜5%)增加植體氮含量21-41%，(4) 椪柑嫁接苗接種R. clarus可減少施肥量33%， (5) 椪柑嫁接苗接種R. clarus在全量施肥量、2/3施肥量及1/2施肥量處理下，皆可顯著增加其葉片氮含量與鉀含量，(6) 椪柑嫁接苗接種R. clarus可使其栽培土壤之無機態氮含量、有效性鉀含量、有機質含量及土壤含水量提高，R. clarus具有改善栽培土壤地力之潛力。
Taiwan’s citrus orchards on slopes suffer low drought resistance due to insufficient water resources. During the development and enlargement stages of citrus fruits, drought may cause flower drop, fruit drop, and a high ratio of small fruits, seriously affecting the yield and quality of citrus fruits. This article will introduce the role of the arbuscular mycorrhizal fungus Rhizophagus clarus in improving the drought tolerance and fertilization efficiency of sour orange rootstocks (Citrus sunki Hort.) and the ponkan scion (Citrus poonensis) seedlings, and explore the potential of the arbuscular mycorrhizal fungus R. clarus in improving soil fertility for cultivation. The test results showed that: (1) Inoculation of sour orange seedlings with R. clarus can reduce watering by 20%. (2) Inoculation of sour orange seedlings with R. clarus can reduce fertilizer application by 50%. (3) Inoculation of sour orange seedlings with R. clarus significantly (P＜5%) increased plant nitrogen content by 21-41%. (4) Inoculation of ponkan scion seedlings with R. clarus can reduce fertilizer application by 33%. (5) Ponkan scion seedlings inoculated with R. clarus can significantly increase the nitrogen as well as potassium contents in leaves under the treatments of full fertilizer, 2/3 fertilizer and 1/2 fertilizer. (6) Inoculation of ponkan scion seedlings with R. clarus can increase the inorganic nitrogen, available potassium, organic matter and soil moisture of the cultivated soil. In this experiment, R. clarus exhibited the potential to improve the cultivated soil fertility.
Subjects
柑橘
叢枝菌根菌
乾旱
土壤地力
Citrus
Arbuscular mycorrhizal fungi
Drought
Soil fertility
Publisher
農業部臺中區農業改良場
Type
book part