论文部分内容阅读
为了研究天然草场施用化肥技术措施的增产效果和经济效益,为松嫩草场合理施用化肥提供科学依据,1985—1987年进行了此项试验。试验设计与实施一、试验处理本试验为复因子试验,主处理为施肥时期,副处理为化肥种类和施用量。主处理按4、6、10月划分三个时期,每个时期均设12个副处理,方案见表1。
In order to study the stimulation effect and economic benefit of technical measures applied in natural grassland, this study provided a scientific basis for the rational application of chemical fertilizers in Songnen pasture. This experiment was carried out in 1985-1987. Experimental design and implementation of a test treatment The test for the complex factor test, the main treatment for the fertilization period, deputy treatment for the type and amount of fertilizer. The main treatment is divided into three periods by April, June and October, with 12 sub-treatments in each period. See Table 1 for the scheme.