USA - Adapting to extreme weather

13.02.2020 160 views
Extreme weather appears to have become “normal.” Actually, maybe the last 50 years (1960-2010) may have been “abnormal” when you look at long-term climate records. What is considered extreme weather today was more normal several hundred years ago. What should we expect and how can we adapt in the future?  Yearly average moisture for Northern Ohio has been 32-36 inches with 42-50 inches in Southern Ohio. The last four years have been among the top 10 wettest on record and Northern Ohio averaged 50 inches (excluding Lake Erie affected counties), possibly going to 60 inches. Northern Ohio weather today is more like Southern Indiana weather 30 years ago. Extreme weather events will change your future farming operations. During wet springs, farmers use large equipment and additional hired help to plant in a shorter time period. Growing winter cover crops with evapotranspiration may dry the soil quicker. Controlled traffic and cover crops also promote firmer soils for timely planting. Research on autosteer and self- propelled robots will allow equipment to get smaller. Smaller lighter equipment operated by robots decreases the weight and compaction factor and operates 24 hours per day. Soon (5 to 10 years), planting, spraying and harvesting operations may be vastly different than it is today. It is predicted that optimal spring planting will be 5 to 10 days shorter and harvesting time 5 to 10 days shorter, but overall, the growing season will be longer. However, average freezing dates may not change much. Timely planting will be critical. With a longer growing season expected, farmers may plant earlier and use longer season crop hybrids that they harvest later. However, longer crop maturities do not necessarily produce higher yields or higher profits. It depends on rainfall timing (especially during pollination) and growing conditions. Short season crop varieties may produce as much grain as longer growing crop varieties with less moisture. Planting a short season variety, getting a premium for early harvest, cutting drying costs and adding a cover crop to increase carbon in the soil may be more profitable and environmentally sound. Increased crop residues decrease soil temperatures, which is beneficial in a drought or during a hot summer. In hot or dry summer, soil temperatures maybe 20 to 30 degrees cooler under no-till and cover crops compared to conventionally tilled soils, conserving moisture lost to evaporation. In Illinois, soil temperatures on conventionally tilled soil reached 140 degrees F during a drought in 2014, which is high enough to kill soil bacteria. These farmers were advised to inoculate their soybean fields to reestablish beneficial Rhizobia bacteria for N production. At 100 degree F soil temperature, 15% of the moisture is used for growth and 85% moisture is lost through evaporation and transpiration. At 70F, 100% moisture is used for plant growth. For corn production, 75 degrees F requires 1-inch water per week, at 85 degrees F – 2-inch water/week, and at 95 degrees F – 4-inch water/week. Water requirements double for every 10 degrees F increase in soil temperature (Elwynn Taylor, 2012). Since water and carbon dioxide are the most limiting nutrients for crop yields, no-till farming and adding cover crops to increase organic matter conserves moisture and adds soil carbon. With more frequent rains, expect delayed fertilizer applications and with more intense rain events expect more soil erosion. Expect increased water quality issues due to loss of nitrate and phosphorus fertilizer, increased sediment losses, runoff from manure application; followed by warmer summers that promote harmful algal blooms. The best solution to these problems is to plant cover crops to decrease soil erosion, improve soil structure, increase water infiltration, and higher water holding capacity, and live roots to tie up soluble soil nutrients. Extreme weather will change insects, weeds, diseases, and soil microbe populations. Higher humidity may increase pathogens, insects, and other pests. Warmer winters affect grains storage with increased insects, molds and allergens expected to be major future problems due to increased temperatures and humidity. Increased temperatures and higher humidity may change the efficiency and persistence of herbicides (volatility) and fungicide's longevity and effectiveness. Expect grain to have higher energy content due to a longer growing season but lower protein content, which will affect livestock feeding. Maryland farmers in the Chesapeake Bay region using cover crops for the past 10 to 15 years say they can plant 7 to 10 days earlier due to firmer soils that allow the soil to dry out rather than planting in mud. Maybe that is the future of Ohio farming. Source - https://www.ocj.com
25.04.2024

Ukraine - Frosts damaged part of harvest of early apples and stone fruits

As a result of the latest frosts in Ukraine, the peak of which occurred on April 19-20 of this year, orchards of apples, pears and stone fruits were partially damaged, EastFruit analysts report.

25.04.2024

Italy - Strong demand for strawberries but yields dropped by up to 50% compared to a year ago

Favorable prices and low yields are marking this recent part of the strawberry season in Southern Italy. "Here in the Basilicata region, in about 40 days, the campaign will be over for many, referring to traditional cultivars like the Sabrosa-Candonga," says Maria Ferrara of the wholesale fruit and vegetable company Fe.Vi Frutta.

25.04.2024

South Africa - Water scarcity threatens the agricultural sector and food security

South Africa is naturally a water-scarce country – among the 30 driest countries in the world. But, combined with unpredictable climate changes that tend towards hotter and drier conditions, diminishing water tables, and the chronic mismanagement of water systems, water availability is becoming a cause for concern across all sectors of the economy.

25.04.2024

India - Farmers claim crop damage on 7,800 acres in Indri, Nilokheri

In the wake of recent rain and hailstorm that lashed the region on Friday, nearly 1,500 farmers in the Indri and Nilokheri blocks of the district have registered claims on the e-Kshatipurti portal, stating extensive losses to their wheat crop on approximately 7,800 acres of land.

25.04.2024

Hunger in Southern Africa: addressing climate change effect

As a result of climate disasters, millions of people in Southern Africa face the threat of starvation. The onset of El Niño caused scorching heat waves that destroyed crops and dried up essential water sources in the region.

25.04.2024

Safeguarding crop diversity in genebanks

Ensuring food security and agricultural resilience in the face of environmental challenges depends on preserving and utilizing crop diversity, according to the Crop Trust. Genebanks serve as the ultimate guardians of this diversity. However, they are susceptible to various risks that could jeopardize their invaluable collections.

25.04.2024

USA - Northwest Ohio farms prepare to protect crops from the cold temperatures

With the expected cold weather this week, farmers are starting to monitor their crops. It isn't strawberry season yet, but farmers are starting to prepare the plants now. The freezing temperatures could impact the crops.

25.04.2024

Singapore - Researchers pioneer nanosensor multiplexing for real-time decoding of different plant stresses

Researchers from the Disruptive & Sustainable Technologies for Agricultural Precision (DiSTAP) Interdisciplinary Research Group (IRG) of Singapore-MIT Alliance for Research and Technology (SMART), MIT’s research enterprise in Singapore, in collaboration with Temasek Life Sciences Laboratory (TLL) and Massachusetts Institute of Technology (MIT), have developed a cutting-edge nanosensor that allows for the real-time monitoring of salicylic a cid (SA) during the early stages of stress response.

istanbul escort şişli escort tbilisi escort şişli escort şişli escort maslak escort istanbul escort beşiktaş escort taksim escort izmir escort ümraniye escort mecidiyeköy escort şişli escort taksim escort ümraniye escort kartal escort şirinevler escort maltepe escort istanbul escort ümraniye escort kadıköy escort vip escort mersin escort istanbul escorts ataköy escort avcılar escort beylikdüzü escort okmeydanı escort şişli escort tuzla escort işitme cihazı sex shop sex shop sex shop sex shop sex shop sex shop sex shop sex shop