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 河北大部、山東局部已持續(xù)了10多天的陰雨天氣，低溫寡照對棉花形成負(fù)面影響，不少棉農(nóng)反饋，今年產(chǎn)量或不如前期預(yù)估。
陰雨連綿，造成棉花坐桃不佳，河北滄州一位張姓棉農(nóng)介紹，當(dāng)?shù)匾堰B續(xù)10多天的差天氣了，他的7畝棉田漬濕，小有積水，尚無法入田進(jìn)行田間管理。這些天的陰天寡照，造成棉花開花較少、受粉不佳，結(jié)桃掛果較差。目前該棉農(nóng)棉花株高在100-120厘米，總高度較預(yù)期增高10厘米，果枝明顯增長，掛果不佳，平均坐桃3-6個/株，較去年同期減少1-2個/株。
蟲害增多，棉農(nóng)化控難以進(jìn)行。山東聊城一位棉農(nóng)介紹，這幾天明顯增多的是棉鈴蟲，他的9畝棉田幾乎株株能找到棉鈴蟲，蟲長1厘米左右，如果控制不及時，很可能大范圍漫延，對產(chǎn)量造成較大影響。他表示，近期化控難度較大，一是陰雨不斷，噴灑農(nóng)藥的話很容易被雨水沖掉或被稀釋；二是現(xiàn)今棉花株大葉茂，必須使用高壓水槍進(jìn)行化控，否則棉鈴蟲躲到棉桃中，農(nóng)藥達(dá)不到，依然治理不了。因此，近期不少棉農(nóng)安排家人或雇傭工人下田捉蟲，增加了人力財力。
近期，河北滄州、衡水、邢臺以及山東聊城、德州等地多數(shù)棉農(nóng)介紹，今年單產(chǎn)很可能降至450-500斤/畝一線的水平，還有棉農(nóng)悲觀認(rèn)為今年單產(chǎn)也僅在300多斤/畝。因為，根據(jù)天氣預(yù)報，本周黃河流域仍然有較大規(guī)模降雨，提醒棉農(nóng)做好相關(guān)準(zhǔn)備。
