早期丰产园梨树根系分布及临时株树体分解研究报告

Root System Distribution and The Dissection Experiment to The Temporary Plants on Pear in Early Harvest Garden

对 6年生苹果梨早期丰产园进行了根系分布调查和临时株树体分解。结果表明永久株根系主要分布在2 0～ 4 0cm土层 ,其次为 0～ 2 0cm ;临时株根系主要分布在 0～ 2 0cm土层 ,随土层加深根系减少 ;根系在主要分布层比重过半。临时株T/R为 1 4 6 ,认为仍具有幼树旺长的习性 。

We did the investigation of plant root system distribution and the dissection experiment of the temporary plants on 6\|year\|oldpingguoli in early harvest garden.The results showed that the root system of the eternal plant mainly locates in the soil layer 20～ 40 cm in depth,some locates in 0～ 20 cm in depth;the root system of the temporary plant mainly locates in the soil layer 0～ 20 cm in depth.As the depth increases,the amount of the root system decreases;the root systems of the both locate in the main layer more than a half.The temporary plant,whose T/R was 1\^46 was considered that it still maintained the growth patent,and the Yield is expected to be high.