论文部分内容阅读
这一试验分别在温室及田间进行.温室中的试验是利用称重的内径30cm、深76cm的混凝土容器作为渗漏计(器),内装从成龄胶园采集来的合金系的土壤(马来西亚土系)定植切杆后一个半月的RRIM600号芽接桩,进行13个月的试验.试验处理是分别控制土壤水分在0.1、0.3及1巴的吸力水平,各施用三种类型的肥料:即直接混合肥、天然胶膜肥及工厂生产的长效肥料(Osmocote),N:P:K有效成分比为18:19:13,用量又分为最适量与半最适量二个水平.渗漏计中的土壤平均田间持水量为34%(干土重%);土壤水分吸力维持0.1巴(译者注:1巴大致相当于一个大气压)水平的平均土壤含水量为32.5%,0.3巴的平均土壤含水量为26.5%,1巴的平均土壤含水量为23.2%.每星期称重一
The experiment was conducted in the greenhouse and in the field respectively, and the test in the greenhouse was carried out using a weighed concrete container with an inner diameter of 30 cm and a depth of 76 cm as a leak meter containing alloy-based soil collected from an aging plastic plantation Soil system) One and a half months after the cutting bar was placed RRIM600 bud splicing pile, for 13 months of test .Test treatment is to control soil moisture at suction levels of 0.1, 0.3 and 1 bar, the application of three types of fertilizer: the direct Fertilizer, natural plastic film fertilizer and factory production of long-acting fertilizer (Osmocote), N: P: K effective component ratio of 18:19:13, the amount is divided into two levels of the optimum amount and semi-optimal amount. Average soil moisture content of 34% (dry soil weight%); average soil water content of 32.5% at a soil moisture suction of 0.1 bar (translator’s note: 1 bar roughly equivalent to one atmosphere), an average of 0.3 bar The soil moisture content is 26.5% and the average soil water content at 1 bar is 23.2%