Manitoba (Reuters) - Chicago wheat futures soared on Thursday, settling up the permitted daily maximum for the first time in two years after No. 3 exporter Russia said it would temporarily halt grain shipments.
Russia's worst drought on record has devastated crops in parts of the country and caused international grain prices to spike as markets placed bets that without shipments from one of the world's leading exporters, global supplies would be restricted.
Prime Minister Vladimir Putin signed an order banning grain and flour exports from August 15 to December 31, with a spokesman saying this would apply to contracts that had been already signed. The news confirmed an earlier report from Interfax that kicked off the buying.
Human-induced climate change is resulting in less and more erratic rainfall, especially in regions where food security is very low. The poor in rural and dry areas will suffer the most and will require cheap and accessible strategies to adapt to erratic weather. This adaptation will need to take into account not only less water and droughts, but also the increased chance of extreme events like floods.
Biodiversity and a healthy soil are central to ecological approaches to making farming more drought-resistant and more resilient to extreme events. Resilience is the capacity to deal with change and recover after it. Practices that make soils better able to hold soil moisture and reduce erosion and that increase biodiversity in the system help in making farm production and income more resilient and stable.
Building a healthy soil is a crucial element in helping farms cope with drought. There are many proven practices available to farmers right now to help build healthy soils. Cover crops and crop residues that protect soils from wind and water erosion, and legume intercrops, manure and composts that build soil rich in organic matter, enhancing soil structure, are all ways to help increase water infiltration, hold water once it gets there, and make nutrients more accessible to the plant.
In order to feed humanity and secure ecological resilience it is essential to increase productivity in rain-fed areas where poor farmers implement current know-how on water and soil conservation. Ecological farms that work with biodiversity and are knowledge-intensive rather than chemical input-intensive might be the most resilient options under a drier and more erratic climate.
In addition to the ecological farming methods described above, continued breeding of crop varieties that can withstand drought stresses and still produce a reliable yield is needed. Many new drought-tolerant seeds are being developed using advanced conventional breeding, without the need of genetic engineering. There are already examples of drought-resistant soybean, maize, wheat and rice varieties that farmers could start taking advantage of right now. On the other hand, genetic engineering technology is not well suited for developing drought-resistant seeds.
Drought tolerance is a complex trait, often involving the interaction of many genes, and thus beyond the capability of a rudimentary technology based on high expression of few well characterised genes. There is no evidence that genetically engineered (GE) crops can play a role in increasing food security under a changing climate.
Over the year, we had talks a lot on the impact of climate change towards vegetable production but very few people can understand what we means.
In May 2010, the hot weather plus heavy rain in the afternoon had damage most of the leafy vegetable in Hulu Yam, product reduce by more than 50%. It struck the market so much that most leafy vegetable wholesalers can not reach their supply, some even faced big financial difficulties in the month, retail price of leafy vegetable shot up to RM4.00-5.00/kg from RM2.00/kg due to shortages.
Vegetables don’t grow on that particular month is because all the vegetables had been heated by very hot sun light, and the soil is hot too. When it rain in the afternoon, the rain water is heated by the hot soil and “cooked” the vegetables. Most vegetables can not adapt to the rapid weather changes and “rotten”.
We later found out this similar weather situation also struck the cabbages of Cameron Highlands, the green chili of Perak and the red chili of Jahor, we belief more crops should had been affected.
We later visited a farm in Senai, saw 110 acres of red chili in bad shape with very low production but no disease found.
In principles “greater concentrations of CO2 generally result in higher photosynthesis rates and may also reduce water losses from plants. Photosynthesis is enhanced when additional carbon is available for assimilation and so crop yields generally rise”.
But it doesn’t apply to the crops in the month of May 2010 in Malaysia, it had over the limit of crop’s growth habit.
The impact of climate warming had changed our strategy to build the green house for organic and sustainable farming. Mr Choo Kok Hing, the Managing Director of Hulu Yam Fresh Sdn Bhd, suggested fixing ventilation system to reduce heat in the house, we estimate the temperature inside the green house is above 5 °C higher than outside.
Electricity supply must be connected for the system to works, hence we had to delay the project