推薦產(chǎn)品
3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 近期新疆大部地區(qū)依然保持晴朗天氣，溫度適宜棉花生長，伏前桃數(shù)量好于去年同期。喀什麥蓋提縣7月中旬觀測的平均伏前桃為2.0個/株，較歷年偏多0.4個/株。沙灣縣棉區(qū)測量的棉花平均伏前桃個數(shù)為1.8個/株，比歷年偏多0.8個/株，伏前桃數(shù)量好于同期意味著今年棉花產(chǎn)量有望高于去年。
通常按照結(jié)鈴的季節(jié)分為伏前桃、伏桃、秋桃，叫做“三桃”。一般是以7月下旬以前的成鈴(開花后一星期的鈴)為伏前桃。伏前桃在三桃中所占比例較小，但它是早發(fā)、穩(wěn)長穩(wěn)產(chǎn)的標(biāo)志，對提高棉花的品質(zhì)和產(chǎn)量有積極的作用?？梢哉f如果天氣條件不出大的意外，伏前桃的長勢直接標(biāo)志了棉花是否能夠豐產(chǎn)。
據(jù)農(nóng)業(yè)專家介紹，棉株生育期中的“伏天”，是開花最多的季節(jié)，入伏前和伏期內(nèi)開的花約占全部有效花的80%左右。因此，伏前和伏期開的花脫落輕，成鈴率高，產(chǎn)量穩(wěn)定、能在霜前成熟吐絮、纖維品質(zhì)好，這些都是構(gòu)成棉花高產(chǎn)的主要部分。
截至8月1日，北疆棉區(qū)坐桃數(shù)量在7.8個/株左右，雖然也有小桃掉落現(xiàn)象，但總體情況仍舊好于去年同期，豐產(chǎn)預(yù)期進一步增強。
