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一、研究的目的和方法 在广东地区,柑橘上山有许多成功的事例,但也有不少失败的教训,失败的原因虽然复杂,但不少人都认为冬季雨量少,土壤干燥,限制柑橘正常发育是主要原因之一,因此在许多柑橘上山的经验总结中都指出做好水土保持工作是重要的环节。为了对解决山地柑园土壤水分问题提供科学资料,我们在广州石牌华南农学院山地柑园中进行了土壤水分的测定研究,选定六个地段为定位测定点,其中有近园边的,园中央的以及肥料用量不一致的,包括了柑园内的各种情况,每一地段还包括连续的上下四个梯级。从1957年3月至
First, the purpose and methods of research In Guangdong, there are many successful cases of citrus uphill, but there are many failed lessons, although the reasons for the failure is complicated, but many people think that less rainfall in winter, the soil dry, limiting citrus normal development Is one of the main reasons. Therefore, in many summing up the experiences of citrus, it is pointed out that soil and water conservation work is an important link. In order to provide scientific information for solving the problem of soil moisture in mountain citrus orchards, we conducted soil moisture measurements in Mountain Citrus Orchard, South China Agricultural College, Shipai, Guangzhou. Six locations were selected for the location determination. Among them, Central Park and the amount of fertilizer inconsistency, including the various conditions within the orange garden, each lot also includes a continuous upper and lower four steps. From March 1957 to March