北疆地区文冠果的土壤水分初步研究

本文主要阐述北疆干旱地区种植经济林木文冠果。土壤水分多少是影响其生长发育的关键。试验采用北疆砂质粘壤土上比较通用的适宜灌溉指标。每次每亩80立方,组成四个不同灌水次数的处理。通过三年来的田间试验,表明整个生育期,灌五次水,每次每亩80立方,0—80厘米土壤水分变化范围为13.8％—21.5％(650—510毫巴),植株叶水势为4.5—7.8巴为最好,其它处理均表现次之。

The Preliminary Study on Soil Moisture in Shiny Yellow -Horn Plantation in North Part of Xinjiang

The paper expounds plantation of shiny yeltow-horn asaneconomical species in arid area of north Xinjiang. The growth and development of shiny yellow-horn is principally affected by the quantity of soil moisture. The appropriate irrigation index-80m~3 per mu each time which is commonly executed to sandy clay loam in north part of Xinjiang was adopted, and four dispositions of irrigation frepuency were included in the experiment. Three years' plot investigation shows that during the growing season, five times of irrigation with 80m~3 per mu each time resulted best: soil moisture within 0-80 cm depth varies from 13.8% to 21.5% (650-510 millibar), foliage water potential of the plants varies from 4.5 to 7.8 bar. Any other dispositions took second place.