论文部分内容阅读
芝麻双茎栽培是在芝麻三对真叶时摘去顶尖,诱导第一或第二对真叶叶腋间腋芽萌发,长出双茎,以便大幅度提高单产的一项新技术。 1989年全市以襄阳县为重点,对芝麻双茎栽培技术进行了试验示范。据全市四点次试验示范结果:双茎栽培单株有效蒴果85.4个,每蒴71.1粒,千粒重2.53克,平均亩产69.5公斤,比常规(单茎)栽培单株蒴果多33.6个,每蒴多3.6粒,千粒重高0.06克,平均亩产高10.6～25.7公斤,增产31.5％～80.6％,亩增收62.1元。 一、增产机理浅析 1、芝麻双茎栽培缓解了植株下部间的竞争,能充分利用肥、水条件,有利于下部通风透光,减少荫蔽,减轻病害。据调查,芝麻双茎栽培比对照的茎点枯轻3.7％。
Sesame double-stemmed cultivation is the top of the three pairs of true leaves of sesame picked off to induce the first or second true leaf axillary axillary buds germination, grow double stems, in order to significantly improve the yield of a new technology. In 1989 the city focused on Xiangyang County, sesame double stem cultivation techniques were tested. According to the results of four-point demonstration in the whole city, there are 85.4 effective capsule per plant, 71.1 capsules per capsule and 2.53 grams per 1000 kernel weight, with an average yield of 69.5 kg per plant, 33.6 more than the conventional (single stem) 3.6 more, 1000 grain weight 0.06 grams, the average yield per mu 10.6 ~ 25.7 kilograms, an increase of 31.5% ~ 80.6%, mu 62.1 yuan. First, increase production mechanism analysis 1, sesame double stem eased the competition between the lower plant, can make full use of fertilizer and water conditions, is conducive to the lower part of the ventilation, reduce shade, reduce disease. According to the survey, sesame double stem cultivation than the control of the stem light dry 3.7%.