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高截干苗是优良的种植材料。它对缩短大田非生产期和提高开割率有显著的效果。马来西亚研究院试验结果认为:采用高截干苗定植和改良的农业措施,可在植后3（1/2）年达到开割标准。我国广东大丰农场,58年布置了高截干苗定植技术试验,其中有两个处理七周年开割率达80.4——84.4％,比对照芽接桩定植的开割率高20.9—24.9％。本省诏安红星农场纳塘65年定植高截干苗183株,六周年开割率达70.4％。本所寨林山73年定植高截干苗400多株,预计八周年开割率可达50％。但是高截干苗对定植技术要求较严格,现将初步调查情况介绍如下: 一、定植后回枯的原因 回枯主要是苗木过分缩水的结果。图为77年高截干苗定植第一年茎围生长曲线。从
High-cut stems is an excellent planting material. It has a significant effect on shortening the field non-productive period and increasing the cutting rate. According to the results of the Malaysian Institute’s research, adopting cutting planted with high cuttings and improved agricultural measures can achieve the cut-off criterion of 3 (1/2) years after planting. In our country, Guangdong Dafeng Farm, 58-year-planted high stem cutting seedlings were planted. Among them, the cut-off rate reached 80.4--84.4% on the 7th anniversary of the two treatments and was 20.9-24.9% higher than that of the control sprouting pile planting. Zhaoan Red Star Farm in Nantang 65 years planted high-cut stem 183, the sixth anniversary of the cut rate of 70.4%. The firm Walled Forest Hill 73 high-cut stems planted more than 400 strains, the eighth anniversary of the expected cut rate of 50%. However, high cuttings on the planting techniques more stringent requirements, the preliminary investigation is now introduced as follows: First, the reason back to dry back to planting is the result of seedlings shrinking too much. The picture shows the first-year stem-height growth curve of 77-year-old stems and stems planted. From