克服荔枝大小年现象,力争丰产稳产

来源 :云南农业科技 | 被引量 : 0次 | 上传用户:emmagarden
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
我省南部处于热带季风气候下,干湿季分明。干燥的冬季一般都在℃以上,同时有一段时间低温,对荔枝花芽的形成最为有利。春天转暖日照长,有利于荔枝的开花和授粉。四至六月雨季到来,有利于荔枝果实发育。五至十月采果后,正值雨季,也有利于来年的果稍形成。全省还有许多适合荔枝生长的微酸性的红壤和冲积土,所以荔枝在这些热带地区普遍生长良好。但由于种种原因,在荔枝生产中也出现大小年,即一年结果;一年不结果或结果很少的现象。归纳起来,主要有以下几种情况: 1.一些年开花多,另一些年则开花少。 The southern province is in a tropical monsoon climate, wet and dry seasons. Dry winter are generally above ℃, while a period of low temperature, the formation of litchi flower buds the most favorable. The warmth of spring sunshine, is conducive to the flowering and pollination litchi. The arrival of the four to six rainy season is conducive to the development of litchi fruit. From May to October after the fruit harvest, coincided with the rainy season, but also conducive to the fruit of the coming year slightly formed. There are also many slightly acidic red soils and alluvial soils suitable for the growth of lychee in the province, so litchi generally grows well in these tropical regions. However, due to various reasons, the size of litchi also appears in the production of litchi, that is, the results of a year; a year of no results or few results. To sum up, there are mainly the following situations: 1. Some flowers bloom more in some years while others bloom less in others.
其他文献
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
1953年国家第一个五年计划开始实施,哈尔滨被列为国家重点建设城市之一。在苏联援建的156项重点建设工程中,安排在哈尔滨的就有13项,在全国大城市中居第一位。哈尔滨市在“
ATSC数字音频压缩(AC-3)标准(七)7.4声道耦合7.4.1概述如能做到,在编码中通过将变换系数在包含于耦合声道中各声道之间取平均,来实现声道耦合。各被耦合声道有一套唯一的耦合坐标,用于保存原始声道的
洋洋 12 0万字的《贵州省志·审判志》 ,其最大的特点是收录了大量的案例 ,从而增强了志书的可读性和史鉴性 ,同时也感到该部志书案例入志的方法很值得借鉴。一、入志体例因
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
针对选煤厂刮板输送机跳、断链问题,分析了其原因,提出了刮板输送机断链的预防措施,在原有刮板输送机配置跳断链保护的基础上,研发出一套刮板输送机跳断链组合保护,即在原有
|项目背景|rn本专栏主要介绍“功能性小麦新品种及其研发利用”方面的内容.随着工业化、城镇化、人口老龄化进程加快和新冠疫情猖獗,人们更加关心膳食营养和身体健康,本栏目
期刊
会议