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全球糧食危機籠罩糧食價格飆升

Global food crisis looms as grain prices soar
By Veronica Brown and Nigel Hunt
LONDON — What looks to be the worst U.S. drought in a quarter of a century has given rise to an old-fashioned commodity rally on world markets, with key grain prices hitting highs which caused food crises in vulnerable parts of the globe last time around.

Seeking to protect their populations from hunger this time, many countries relying heavily on imports have held off for now, touting healthy stock levels and hoping other sources will come through and bring prices down.

But their hopes may be dashed if they all return to market at once.

With so much of the world putting faith in a record U.S. corn crop, it is little wonder that prices have surged around 40 percent in the past three weeks as relentless dry weather melted yield expectations for cereals. Soybeans are at record highs, while wheat is not far behind.

"Production potential looked great and it kind of lulled these end-users into a false sense of security. At that point we were seriously looking at (corn) prices under $5 if weather conditions remained ideal, but now we've rallied sharply higher and never looked back," Jefferies Bache analyst Shawn McCambridge said.

Now, corn futures contracts backed by the 2012 harvest are above $7 a bushel and climbing fast.

Traders said consumers in Europe, North Africa and the Middle East had pulled back on regular purchases, expecting prices to cool off.

"This to me is a time bomb. I am routinely one of the more bearish people but it wouldn't surprise me if corn traded at $10," the trader added.

There are several parallels between the current state of play and food crises of the past few years, including scorching weather, wilting crops and sky-rocketing prices. Just substitute 2012's U.S. drought and corn for 2010's Russian crop failure.

Similarities can also be found on the macro front - 2008, when prices were last at these levels, saw a mushrooming financial crisis culminate in the failure of Lehman Brothers, and now Europe's debt crisis has left the euro zone precariously balanced, with other regions also on edge.

The uncertainty has led to swings in all the markets this time as then, but the simple common denominator of supply and demand has been the driving force of the latest grain price spike, with weather the only fundamental that matters.
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Such frenzied buying leads ultimately to additional food inflation and domestic price rises can be a tipping point in countries with already struggling populations.

Buyers watch and wait 
State buyers from the top importing countries, including Egypt and Iran, China and India are sanguine so far, united in delivering a message of comfort in domestic stock levels and ability to sit out the current price surge.

Leading wheat buyer Egypt, importing more than 10 million tonnes per year, has said it has a strategic stock of about six months plus to last until January.

"Of course entering the markets for August shipment isn't likely now and that's because our local purchases leave us in a very comfortable position," Nomani Nomani, vice chairman of the General Authority for Supply Commodities (GASC) said last week.

In Asia, top grain consumers China and India have ample stocks of wheat and rice, thanks to near-record harvests in the last few years. U.S. corn export sources also noted that China and South Korea were ahead of the curve, booking larger shipments in anticipation of supply problems and high prices.

The surge in prices has revived memories of the 2007/08 food crisis which the United Nations Food and Agriculture Organization (FAO) estimated added 75 million to the number of chronically hungry people in the world. Other estimates put the increase at up to 160 million.

The International Grains Council's Grains and Oilseeeds Index, a weighted average of prices for wheat, corn, soybeans, soymeal, rice, barley, sorghum and rapeseed, rose this week to its highest level since July 2008.

While grain stocks currently stand 25 percent higher compared with 2008, according to IGC data, the devil is in the detail as China now has a large holding of wheat and corn and is unlikely to release it onto international markets.

Consumption of grains has steadily increased in recent years. The IGC forecast earlier this month it would rise by 1.8 percent in 2012/13 (July/June) boosted by increased meat consumption, particularly in developing countries.

Trade sources say Iran, while resting from a sanction-busting led shopping spree earlier this year and counting its domestic harvest, is checking international prices daily with a view to major purchases of grain.

Talks on multi-million tonne barter wheat deals with India and Pakistan have hit a wall and their failure will only intensify the country's purchasing needs.

Sticking with the Middle-East, crisis-torn Syria is in a chronic state, with the unintended impact of sanctions against the Assad regime leaving it unable to trade in big enough amounts to satisfy its grain import requirement of about 3 million tonnes.

Attempts at deals have failed repeatedly, with prices rising all the while.

"With the economy already a major concern, soaring grain prices will heap more and more pressure on the Syrian government. Forex reserves are at new lows and decreasing at a faster rate as commerce and the ability to collect taxes decreases," said Alan Fraser, Middle East analyst with security firm AKE.


Thailand, Asia's biggest exporter of frozen chicken, expects higher prices of corn and soybeans to stoke food inflation as the cost of feeding animals climbs.

"We are now facing higher cost of feedstuff and we expect to see a rise of 5-10 percent in food prices in the fourth quarter of the year," said Pornsil Patchrintanakul, deputy secretary-general of the Thai Chamber of Commerce.

On corn, importers are taking a certain amount of comfort from Brazil's record harvest. But there are caveats.

"Brazil has a record corn crop. They're expected to export 14 million metric tons. But there's going to be a lot of competition for that cheaper Brazilian corn," said Bill Tierney, chief economist with Chicago-based AgResource Company.

Bulging demand pipeline 
Parking on the sidelines to avoid the sting of higher prices seems like a sensible tactic

Morocco is currently reluctant to buy, but faces its highest cereal import needs in three decades due to a poor domestic harvest. The north African country's cereals crop fell from 8.4 million tonnes in 2011 to 5.1 million tonnes this year.

"Buyers have been rejecting offers in the last couple of weeks expecting prices to come down," a Singapore-based grain trader said. "We have seen it in South Korea, the Philippines and Vietnam but how long can they wait?"

Buyers will do their best to hold out for the release of new crop grain in September and October from multiple sources including Eastern Europe, with Black Sea countries having forged a place on international markets as key suppliers of grain at cheap prices.

However those origins are also under pressure.

Hot and dry weather has forced Russia, Ukraine and Kazakhstan to reduce their harvest forecasts and the region's total grain output could be at least 35 million tonnes less than in 2011.

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蔬菜對溫度日照條件的要求

蔬菜對溫度日照條件的要求
全日照  8個小時日照 瓜類、茄果類、豆類、山藥、豆薯(地瓜)。番茄、黃瓜、茄子、辣椒等喜溫中、強光性
蔬菜夏秋季生產,玉米、青椒、西瓜、南瓜、西紅柿、茄子、芝麻、向日葵類。
其次是根莖類,如:馬鈴薯、甜菜、胡蘿蔔、白蘿蔔、甘藷、山藥等等。至少需半日照,才能生長,芋頭雖喜歡全日照,但比其他蔬菜耐蔭。 
需要中等光照大白菜、甘藍、芥菜、蒜、洋蔥。 

長日性蔬菜白菜、甘藍、芥菜、蘿蔔、胡蘿蔔、芹菜、菠菜、萵苣、蠶豆、豌豆、大蔥、洋蔥。

短日性蔬菜豇豆、扁豆、莧菜、空心菜。         

中光性蔬菜黃瓜、番茄、茄子、辣椒、菜豆

菜豆

菜豆喜溫暖,不耐高溫和霜凍。菜豆種子發芽的適溫為20-30℃;在40℃以上的高溫和10℃以下的低溫,種子不易發芽。幼苗生長適宜氣溫為18-25℃。花芽分化的適宜氣溫為20-25℃,過高或過低溫度易出現發育不完全的花蕾、落花。

菜豆對光照強度的要求較高。在適宜溫度條件下,光照充足則植株生長健壯,莖的節間短而分枝多,開花結莢比較多,而且有利於根部對磷肥的吸收。當光照強度減弱時,植株易徒長,莖的節間長,分枝少,葉質薄,而且開花結莢數少,易落花落莢。

菜豆根系強大,能耐一定程度乾旱,但喜中度濕潤土壤條件,要求水分供應適中,不耐澇。生長期適宜土壤濕度為田間最大持水量的60%-70%,空氣相對濕度以80%為宜。開花結莢期對水分最敏感,此期土壤乾旱對開花結莢有不良影響,開花數、結莢數及莢內種子數減少。土壤水分過大時,下部葉片黃化,早脫落。空氣濕度過大會引起徒長、結莢不良。

菜豆具有深根性和根瘤菌,對土壤的要求不甚嚴格,但仍以土層深厚肥沃、排水良好的輕砂壤土或粘質壤土為好。土壤過於粘重、低溫、排水和通氣不良則生長不良,炭疽病重。菜豆喜中性至微酸性土壤,適宜的土壤pH為5-7.0,其中以州6.2-6.8最適宜。菜豆最忌連作,生產中應實行2-3年輪作。

菜豆生育過程中,主要吸收鉀和氮較多,還要吸收一定量的磷和鈣,才能良好發育。結莢期吸收磷鉀量較大。磷鉀肥對菜豆植株的生長發育、根瘤菌的發育、花芽分化、開花結莢和種子的發育等均有影響。缺乏磷肥,菜豆嫩莢和種子的品質和產量就會降低。缺鈣,幼葉葉片捲曲,葉緣失綠和生長點死亡。缺硼,則根係不發達,影響根瘤菌固氮,使花和豆莢發育不良。 耐陰半陰(大概3-4小時日照) 應選擇耐陰的蔬菜種植,如萵…

蝶豆花

蝶豆花 原產拉丁美洲的蝶豆花是一種典型的熱帶蔓藤植物,全年盛開。
butterfly pea,拉丁語叫:Clitoria ternatea,泰語叫Dok Anchan
中文名叫蝶豆花,藍蝶花,藍蝴蝶、蝴蝶藍花,還有蝴羊豆、豆碧等別名。
用蝶豆花當作高品位浪漫的茶品飲用、以及當作天然食品色素制作糕點是拉丁美洲和南洋國家的風情和習俗。
蝶豆花的味道自然甘甜,南洋國家的一些五星級酒店通常把蝶豆花茶當作高貴的迎賓茶來接待貴賓。
營養價值 蝶豆花具有豐富的維他命A,C和E, 而且可以提高免疫力, 幫助和促進皮膚的彈力和骨膠原, 同時還具有補腦,促進腦的活力,防止胃痛,抗憂郁、抗壓力、鎮靜、止驚厥、緩和情緒等天然保健功效。
蝶豆花中的天然藍色素,也是有療效的。如果將其加入檸檬並調制成花茶飲品,就是保健心臟血管的絕佳飲料。
食用價值 蝶豆花的可食部位是葉、花及嫩莢。較幼嫩的葉片及盛開的花朵,亦可拿來煮湯、油炸等。用嫩芽來炒肉絲或煮熟後食用,都十分可口。蝶豆花的葉及花的萃取液,可當作純天然的食品染料。

直達香草(herb4kitchen)
PS.營業用批量報價

錦鯉養殖基本知識

◎飼養與管理的重點 只要不是劇烈的變化,錦鯉很容易適應各水溫水質等環境的變化。並不是沒有大庭園就無法飼養,有人甚至在二樓陽台或頂樓陽台造水池飼養。然而我們是欣賞錦鯉雄壯豪邁之氣,因此水池盡量寬闊為宜,以水深1.2m以上為理想。魚池必須有底水排出,過濾循環等設備。用水不一定要取地下水,自來水也可以飼養。
<因為都市中有景觀安全的需求,及屋頂花園有荷重的需求,錦鯉池水深可以低到30cm左右。>
◎每天排水
A、糞或枯死的藻類全部送至過濾槽的話,耗氧量會增大,pH就下降,更會轉變為亞硝酸,增了過濾槽的負擔。為了盡量減輕過濾槽的負擔,每天至少把魚池的底水排水使固物排出去,把中間水送去沉澱槽及過濾槽。 
B、把固體廢物的魚糞集中排出,最好不要從池底打氣而是從排糞口的上方40~50公分打打氣。如此氣泡往上昇。池水產生對流。污物就集中於排糞口。
<可以設計水流把固體廢物盡量集中或排出到過濾系統中。>
◎過濾槽管理
A、細菌附著於濾材,分解固體廢物會消耗大量的氧。 
B、溶氧不足時,厭氧菌會把硝酸還原亞硝酸,或從碳酸氣發生沼氣,也會從硫酸分解產生硫化氫等有毒氣體。
<如果溶氧不足,可以優先把打氣設備放置到生化過濾槽中。>
◎溶氧要充份
A、水中溶氧不足的話,會影響錦鯉的生育,飼料的消化,,水質的維持等等。
B、硝酸,亞硝酸的濃度增高時,會影響溶氧量。所以優先去除硝酸及亞硝酸。
C、使用沸石可輕易去除硝酸,沸石量約等重於魚體總重量。
<沸石再生法,是將沸石浸泡25℃以上1:10食鹽水數小時,再以清水洗淨即可。>
◎水質的控制
水質硬度高的話,錦鯉肌膚經常會有少許充血的狀態。豔麗性也會慢慢消失,紅緋會上升。pH值低,肌膚變的很不好看,但是雖餵增色飼料,依然不見起色,徒增浪費。pH值7.1~7.5最適宜的。
◎鯉餌的重要性
良好的魚餌不會崩壞鯉的體型。餌的量也是在夏天水溫 高的時候,訂定停餌期間,才是整體來說使鯉變胖最重要的秘訣。如果還是想 要給很多餌的話,要增加循還量。錦鯉在水溫超過28度的時候,應給與相當於 鯉全體重量3%的餌。水溫25度時1.5%,水溫20度時0.3%,16度以下則要停止鯉餌,這就是鯉魚長得強壯的要訣。連續不斷地給鯉餌的話,引起內臟障礙, 而影響到鯉不會長壯,甚至導至體型的變歪。
◎魚病預防
水的管理與定期消毒都是很重要的步驟,…