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新疆林业是灌溉林业,本文就土壤水分对杨树速生丰产的作用,以及不同杨树品种的丰产栽培对土壤含水率的要求标准、灌水量、灌水日期的试验结果汇总如下: 一、试验概况:试验地点选择在昌吉州呼图壁县甘河子林场,该地的地势平坦,土层厚达三米以上,属荒漠棕色灰钙土,土质为中粘土,在1.5米范围内分层取土化验,平均总含盐量0.25—0.35％,
Xinjiang forestry is irrigated forestry. In this paper, the effect of soil moisture on fast-growing poplar and poplar cultivation of different varieties of soil moisture content of the required standards, irrigation volume, irrigation date test results are summarized as follows: First, the test profile: The test site was selected at Ganhezi Forest Farm, Hutubi County, Changji, where the terrain is flat and the soil layer is more than three meters thick. It belongs to desert brown calcareous soil whose soil is medium clay and takes soil in a layer within 1.5m Laboratory tests, the average total salt content of 0.25-0.35%