農(nóng)業(yè)專(zhuān)業(yè)英語(yǔ)知識(shí)-文庫(kù)吧在線(xiàn)文庫(kù)
【正文】 eases.? Leaf drop and leaf break increase. ? Blue mold is more severe.? Hornworm and aphid populations increase.氮肥的施用量和施用時(shí)間 氮素是影響煙草產(chǎn)量和質(zhì)量的最重要的營(yíng)養(yǎng)元素。 ExpressionsBuyout n. a situation in which a person or group gains control of a pany by buying all of its shares 全部買(mǎi)下、買(mǎi)斷 Postbuyout 買(mǎi)斷后MH maleic hydrazide 順丁烯二酸酰肼，馬來(lái)酰肼Alkaloids n. any of numerous organic bases (as morphine) containing nitrogen and usually oxygen that occur especially in seed plants 生物堿Top v. to remove or cut the top of 給……打頂Sucker n. a shoot from the lower part of the stem of a plant 腋芽Stalk n. a long narrow part of a plant supporting one or more leaves,flowers or fruits 柄、梗Nicotine n. a poisonous alkaloid （C10H14N2） that is the chief active material of tobacco and is used as an insecticide 尼古丁Cure v. to preserve by drying it 曬、烘烤Mature a. fully grown and developed 成熟的Hornworm n. a kind of insects 天蛾幼蟲(chóng)Mo(u)ld n. a superficial growth produced especially on damp or decaying organic matter or on living organisms 霉菌Blue mo(u)ld 青霉病Layby n. the final operation in the growing of a field crop 最后的田間作業(yè)Variegated v. marked in different colored spots,lines,areas etc 雜色的、斑駁的Sidedress v. to apply nutrients on one side of the plant roots 側(cè)施肥Nondescript a. belonging to no particular class or kind 無(wú)歸類(lèi)的?！裨谡{(diào)制后葉片中，總生物堿、煙堿增加，糖減少。然而，數(shù)據(jù)表明：在美國(guó)東南部，氮肥的施用量和施用時(shí)間比側(cè)施肥料更重要。腋芽也會(huì)妨礙機(jī)械采收并成為調(diào)制后煙葉中雜質(zhì)的一個(gè)重要來(lái)源。在2003～2004年，煙葉成熟很慢，但由于過(guò)多的降雨，煙葉質(zhì)量很快下降。 treatment 4, 30 days later than treatment 1。 and from $ to $ in 2003. Even though weather conditions in 2002 and 2003 were quite different, the trends in quality were the same. Therefore, when it es to quality, there is no substitute for harvesting ripe tobacco. 從質(zhì)量上看，有一點(diǎn)值得重視，即：隨著采摘從提前7天(未熟)—推遲到成熟后10或20天，每磅的價(jià)格幾乎總是上漲。卷煙制造商和煙葉經(jīng)銷(xiāo)商在希望滿(mǎn)足顧客需要的煙草風(fēng)格上有不同的偏好。In addition, the uppermost 10 to 12 leaves were harvested together or divided equally into two harvests. Based on tobacco pany evaluations of upperstalk tobacco from these trials, ripeness and separation of the uppermost leaves had the greatest effect on tip grade production. 此外，還對(duì)最上部1012片葉一起采收和均分進(jìn)行兩次采收進(jìn)行了比較。然而，由于去除葉片導(dǎo)致的調(diào)制和勞動(dòng)力成本的降低，將使每英畝凈產(chǎn)值的減少小于毛產(chǎn)值的減少。品種在每個(gè)試驗(yàn)地點(diǎn)都對(duì)頂葉等級(jí)的生產(chǎn)沒(méi)有影響。Therefore, the production of tip grades likely begins with better separation of upperstalk tobacco, ., separation of the top four to six leaves into one grade. However, separation of the uppermost leaves during harvest may not be enough to produce cured tobacco with the desired chemical and physical characteristics attributed to a tip grade.因此，生產(chǎn)頂葉等級(jí)可能是從上部葉的較好的分次采收開(kāi)始的，即把最上部的46片葉分在一個(gè)等級(jí)。 Leaf Separation by
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