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 又到了新疆棉花春播的時節(jié)，棉花行業(yè)相關(guān)投資者以及棉農(nóng)朋友們都比較關(guān)注春播情況。目前新疆播種期氣象條件對棉花影響如何？
首先棉花選種很重要，優(yōu)良的品種自帶優(yōu)秀基因是高產(chǎn)的基礎(chǔ)，現(xiàn)在大多數(shù)棉花種植者通過多年的經(jīng)驗(yàn)積累，都知道選種對保苗、抗病增產(chǎn)的重要性。
其次棉種需要一定的溫度和濕度條件才能喚醒發(fā)芽，一般情況下棉田地表溫度持續(xù)達(dá)到12℃左右，土壤含水60%左右即可以滿足棉種發(fā)芽條件。土壤水分過少不利于種子發(fā)芽，水分過大容易出現(xiàn)爛種。新疆地域遼闊，棉區(qū)分布跨度較大，各地區(qū)具有不同的特點(diǎn)，南疆主要是防范棉花播種、出苗期風(fēng)沙影響。北疆主要是防范陰雨低溫、土壤板結(jié)等不利因素，從以往的經(jīng)驗(yàn)來看新疆大部分地區(qū)4月中下旬大面積播種為宜。
另外播種機(jī)械化作業(yè)水平、土壤土質(zhì)以及農(nóng)業(yè)新技術(shù)的綜合應(yīng)用水平等也對棉種發(fā)芽出苗有較大影響。比如適當(dāng)?shù)牟シN深度、腐殖酸的合理利用等都可以促進(jìn)出苗和壯苗。
綜合以上因素再結(jié)合氣象部門發(fā)布的天氣趨勢預(yù)報(bào)來看，目前新疆天氣對播種有一定的不利影響，但影響程度總體不大。
