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1柠条平茬的必要性生长多年的拧条,皮层组织由鲜嫩细密逐渐变得老化粗糙,输送养分和水分的能力越来越弱,直至干枯死亡。而生长多年后的柠条根系已经很发达,主根系的长度有10m多,吸收养分和水分的能力很强,如果适时进行平茬,就会在平茬后长出更加茂密的新枝条,新枝条的生长速度远比新播种的柠条来得快。经试验研究,平茬后长出的新枝条经过两年的生长,长度有40～50cm,并且每一根主干根部会长出5～8根
1 the necessity of stubble Caragana growing years of twist bar, cortical tissue gradually become coarse and delicate aging, the ability to transport nutrients and water more and more weak until dry death. After years of growth, the root system of Caragana korshinskii has been well developed. The main root system has a length of more than 10 m. It has a strong ability of absorbing nutrients and water. If it is stubbled in time, it will grow more dense new shoots after stubble cultivation. Branches grow much faster than newly sowed Caragana. After the experimental study, after the stubble grow new branches after two years of growth, the length of 40 ~ 50cm, and each trunk will grow 5 to 8 roots