问题 问答题 简答题

请你根据烤烟品种红花大金元的的品种特性谈谈其栽培和烘烤技术要点。

答案

参考答案:

田间长势好,叶片落黄慢,耐成熟,分层落黄明显。适应性广,有一定耐早能力,但耐肥性较差,对氮肥比较敏感。前期易感染根结线虫病,黑胫病、根黑腐病后期易感染赤星病。烘烤过程中变黄失水不协调,变黄慢,失水快。烘烤不当易烤出青尖、青筋黄片、青黄烟。

评吸清香型风格突出,香气质好,香气量尚足,浓度中等,杂气有,劲头适中,燃烧性强,灰色白。

栽培技术要,点:适宜在中等肥力的地块种植,要坚持轮作,适时播种移栽,严格掌握氮肥用量,一般亩施纯氮4-6kg,氮磷钾比例1:1:3,留叶18~20片。病害防治:由于红大抗病性差,因此在苗期和大田前期要充分注意根黑腐病、黑胫病和花叶病的防治,叶片成熟期应充分注意赤星病、野火病的防治。

烘烤技术要点:红花大金元叶片落黄慢,应充分成熟采收,严防采青,烘烤中变黄速度慢,而失水速度又快,较难定色,难烘烤。变黄期温度38~40℃,变黄7~8成,注意通风排湿,40℃后烤房湿球温度应控制在36—38℃,43℃烟叶变黄9成,45℃保温使烟叶全部变黄。定色前期慢升温,加强通风排湿,烟筋变黄后升温转入定色后期,干筋期温度不超过68℃

单项选择题
阅读理解

阅读理解。

     I was born in Rockville, Maryland into an immigrant (移民的) family that came to America from

Mainland China in the 1940's. Last summer, I was in Beijing to work at the Chinese Center for Disease

Control and Prevention.

     For 20 years I was regarded as Chinese or Asian in America. So answering the question "Where are

you from?" in China with "United States" was a little uncomfortable, sometimes for both sides. Some

co-workers were surprised at my use of chopsticks and my taste for Chinese food, as if being "American" could only mean eating at McDonald's.

     Luckily, I was not always looked on as an American. One afternoon, I took a bus back to my

apartment. A local (当地人) was talking with a white American in English. When the American got up at

his stop, I took his seat and heard the local's conversation with a friend sitting on the other side of her. The local told her friend she often talked with foreigners and that was the best way to learn spoken English.

Meanwhile, I sat there and wanted to tell her that an American was still next to her.  

     Then I received a call from a friend about meeting up to watch Peking Opera the next day. When I

hung up my cellphone, the woman sitting next to me asked for how long I had been learning English in

order to speak it that well. She was a bit disappointed at my answer that I was born in the US, but the

question led to an interesting conversation on language learning.    

1.Why did the author come to China last year?

A. To learn Chinese.            

B. To do a job in China.

C. To learn more about China.    

D. To help Chinese learn English.

2. From the second paragraph we can learn that the author _____.

A. liked McDonald's food        

B. knew some Chinese culture

C. didn't like the life in China    

D. didn't come from the US  

3. The local talked with the white American mainly to _____.

A. spread Western culture            

B. discuss how to learn Chinese  

C. ask how to go somewhere          

D. practice spoken English  

4. When the author was telephoning, the local thought he was _____.

A. a Chinese who spoke English well

B. an American who worked in China

C. a Japanese who could speak English  

D. a local who liked Peking Opera  

5. Which of the following would be the best title of the text?

A. Why do I love Beijing so much?      

B. More American than Americans

C. A Chinese-American in China        

D. Is English the global language?