生草栽培對(duì)大雅柑生長(zhǎng)及結(jié)果的影響

打開文本圖片集

中圖分類號(hào)：S666.1 文獻(xiàn)標(biāo)志碼：A文章編號(hào)：1673-9868（2025）05-0063-11

DOI：10.13718/j. cnki.xdzk. 2025. 05.006

Effects of Grass Cultivation on Growth and Fruit of Citrus reticulata Dayagan

YONG Shunyuan1'2， CHEN Qian1'2， FU Hao1，2，GUO Qigao1'2， ZENG Ming1

1.Colegeof HorticultureandLandscapeArchitecture，Southwest University/KeyLaboratoryofAgricultural Biosafetyand Green Production of Upper Yangtze River Ministry of Education，Chongqing ，China ;

2.Academy of Agricultural Sciences，Southwest University/State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University，Chongqing 40o715，China

Abstract： In order to investigate the effect of sod culture on Citrus reticulata Dayagan， with orchards under four treatments of sod culture with four forage species （Medicago satiua ， Vicia satiua ， Raphanus satius and Trifolium incarnatum） as research subjects，the number and weight of nodules，mycorrhizal infection rate，root vigor，soil physical and chemical properties，tree growth，fruits yield and quality were determined. The results showed： ① The mycorrhizal infection rates of grass species showed correlations with citrus root infection rate，acid phosphatase activity of citrus and citrus root vigor. ② Sod culture increased soil nutrients in the orchard. The M . sativa treatment had the best effect. It could significantly reduce the soil temperature of the orchard and increase the soil water content in summer. ③ Sod culture can promote citrus autumn shooting and leaf growth，and increase the accumulation of N， ΔP and K in citrus leaves. The order of effect on N was M . sativa，V. sativa， R . sativus， T . incarnatum. Sod culture can improve the citrus yield，single fruit weight and soluble solids. V. satiua had the best effect in two consecutive years. It is recommended to choose M. satiua and V. satiua for sod culture in‘Dayagan’ citrus orchards.

Key words： Citrus reticulata Dayagan; sod culture； mycorrhiza; soil physicochemical properties

果園生草栽培作為一種可持續(xù)農(nóng)業(yè)管理模式，起源于19 世紀(jì)末的美國(guó)，伴隨灌溉技術(shù)革新與機(jī)械化割草設(shè)備的普及，逐步發(fā)展為全球廣泛應(yīng)用的果園管理體系[1]。（剩余12243字）