首页/ 题库 / [问答题]如何选择遮阳网?的答案

如何选择遮阳网?

问答题
2023-03-09 22:29
查看答案

正确答案

遮阳网的选择要从两个方面考虑:
一是蔬菜的种类:喜光、耐高温的蔬菜适宜选择遮光率较低的遮阳网;不耐强光或耐高温能力较差的蔬菜应选择遮光率较高的遮阳网;其它类型的蔬菜可根据相应的情况进行选择。
二是蔬菜的栽培方式:如果是以塑料大棚或温室冬春保护栽培为主,仅在夏季高温阶段进行临时遮阳越夏栽培,应选择遮光率高、降温效果好的黑色遮阳网。如果是以遮阳栽培为主要目的,则可根据蔬菜的类型以及当地蚜虫的发生情况,选择遮光率低或中等的黑色或银灰色遮阳网。


试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

蔬菜地膜覆盖栽培的效果主要表现在()。
[选择题,2分] Every piece was handed tentimes or more. And the drying
阅读下面的句子并选择正确的汉语翻译。 目:1 Having a healthy snack on hand, like a granola bar or fruit can help your blood sugar levels and may provide a healthy boost of energy回答 2 Instead of sending an email to your co-worker, walk to her desk or just take the stairs today, even though youre tired回答 3 Moreover, these people may be friends or strangers — people of your own age, or people who are younger or older than you回答 4 People in different countries have different ideas of what sounds friendly, polite or sincere — and of what sounds rude or unfriendly!回答 选项:
蔬菜栽培方式的确定依据是()。
主要蔬菜栽培制度有()。
仓库遮阳采用仓库建筑遮阳和毡盖遮阳,混凝土结构遮阳效果最佳。
水稻农机农艺融合方面,推广大棚、无纺布育秧和“浅、湿、干”旱育稀植等节水栽培技术的优势区是()。
什么叫ORS?如何配制?如何使用?
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
遮阳设施设置在玻璃窗内侧和外侧,对玻璃窗的遮阳作用是不同的,外遮阳的遮阳系数要()内遮阳的遮阳系数。
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
广告位招租WX:84302438

免费的网站请分享给朋友吧