Friday, January 08, 2010

With Healthy Soil Comes Healthy Crop

The condition of the soil is the most important factor in successful farming because if the soil is healthy, the crops planted in it would be healthy, too.
This is the conviction of Wilfred Noriel of Baloc, Sto. Domingo, Nueva Ecija. Believing that the crop’s nourishment is the best shield against plant sickness, this economics graduate of De La Salle University who has been farming for more than 11 years has been seeking ways to bring back lost soil nutrients.
He visits farms here and abroad to learn from farmers and experts. He also reads a lot and develops new farming techniques based on his readings and experiences.
In one of his visits to the University of the Philippines Los Banos, a friend offered him a microbial inoculants that hastens decomposition. Due to curiosity, he used it in land preparation and found out that with activated microorganisms, stubbles, hays, grasses, and other farm wastes decompose easily, incorporating back to the soil nutrient

s such as silica and calcium.
Wilfred says, “it usually takes 10-14 days to decompose farm wastes, and so our land preparation ends on the 21st day.” Within this duration, the farm would be completely cleaned from the previous season’s residues.
The key to efficient land preparation, according to him, is to achieve the softest possible texture of the soil containing decomposed wastes because plant roots develop well in soft soil. So in the dry season when the soil is hard, he uses 20 kilograms of organic fertilizer with 75 percent humic acid per hectare. This will loosen the soil during basal application. In theory, 10 tons of organic manure is needed to supplement 1 hectare of rice land. Whereas, with humic acid in fertilizers, only two bags are needed.
When it comes to fertilizer application, which is usually done in 2-3 splits, he does it two times more. Before the final harrowing, he uses 60 percent of a special organic fertilizer containing 22 percent phosphorus for basal application. He chose this fertilizer over the commercial ones because it has 50 percent more phosphorus and it contains sillicic acid, a mineral that keeps the cell wall of the rice plant strong. Then he applies the remaining 40 percent of the fertilizer at 3-4 splits.
He also mixes the organic fertilizer with single elements like nitrogen, phosphorus, potassium, and even sulfate, if available. In dry and wet seasons, he uses 810 bags and 6 bags of organic fertilizers per hectare, respectively. Each bag only costs P420, cheaper than the inorganic fertilizers that are also applied in combinations.
Then a week after transplanting, he applies a soil conditioner that contains nitrogen-fixing bacteria, humic acid, and other micronutrients at a rate of 2 kilograms per hectare. Then he solubilizes phosphorus to enable the plants to absorb important elements.
Wilfred also sprays Biocozyme with zinc foliar fertilizer once in a planting period. One of his secrets is that during the reproductive phase and early heading, he applies foliar sprays containing a combination of 1 percent each of calcium, boron, and zinc. To produce whole and tasty grains, he mixes 20-20-20 with 40-48, and applies the solution 45-58 days after transplanting and at early heading. The high potassium concentration helps improve grain quality.
He also gives importance on the way chemicals are mixed. Chemicals are usually oil-based. To realize the full potential of these, he said that each chemical should be thoroughly mixed in drums or any other container before transferring into the sprayer.
When it comes to pests and diseases, for him, the best way to control these is by making the crops resistant to these through proper soil conditioning and fertilization. In this way, insect pest management becomes unnecessary.
“If a person is physically fit, he does not get sick. The same is true in rice plants,” he adds. However, in extreme cases when the disease from his neighboring farms spreads, he opts for pesticides but in appropriate dilution.
“All problems in the field are associated with nutritional balance. You just need to manage it to ensure high yield,” he said referring to how he was able to harvest an average yield of 6 tons per hectare from his 23-hectare farm.
His yield is really enviable because aside from being high, it has also a higher grain quality. Wilfred has achieved this because he has ample time to focus on improving his farm practices for he does not have any problems on managing pests and diseases, thanks to the healthy soil in his farm.

Tuesday, January 05, 2010

Fruit Production And Climate Change


Mitigating the adverse effects of climate on fruit production is the subject of an interesting article of Dr. Pablito P. Pamplona.
Dr. Pamplona, of course, is the fruit expert who retired earlier from the University of Southern Mindanao in Kabacan, North Cotabato, and now managing his own fruit farm and nursery.
He writes that production of pummelo, longkong lanzones, durian, mangosteen and rambutan in Mindanao has been adversely affected by the climate change that started in 2007. Climate change, he said, brought about unpredictable occurrence of long and heavy rains accompanied by strong winds not previously experienced in Mindanao. One time, it’s a prolonged period of light rains followed by a short dry spell, like what happened in 2007. The short dry period was not long enough to trigger profuse flowering of the trees and that was the reason why there was a shortfall in production.
At another time, there was a period of prolonged heavy rains which resulted in longer soil saturation that resulted in damaged roots in many instances. Because of damaged roots, the trees, especially durian, were killed. They became susceptible to the phytophthora disease.
At one time, Dr. Pamplona wrote, the heavy rains were followed by a prolonged dry period. With the intense sunlight and high temperature during that period, the leaves as well as the flowers and developing fruits wilted. Of course production declined sharply.
Dr. Pamplona writes that starting in the middle of 2008, he implemented some techniques to mitigate the adverse effects of climate change and the damage by emerging pests. “Our techniques succeeded in restoring the health and productivity of the trees enabling us to produce commercial quantities of mangosteen, durian, pummelo and longkong fruits under a situation where low to no production was experienced in many fruit farms in Mindanao.

Pangasius : Agriculture’s New Rising Star


Pangasius, the rising demand in the international market for this family of catfish has started to create ripples in the local agricultural world.
It started rather innocently. Early this year, top managers of Vitarich Corporation went to Vietnam and came across thisfreshwater fish called by many names: Siamese shark, sutchi catfish, swai, white or striped catfish. Scientifically called Pangasius hypopthalamus, these slender, elongated silverish to bluish-bodied fishes that can grow at 4ft in length and can weigh up to a maximum of 44 kg have been making waves in Vietnam because they are processed into fillets and are exported to Russia, Poland, Spain, USA, Netherlands, China, etc.
Marketing and sales expert Jose de Leon Angeles, Vitarich’s national marketing manager, who was with the team that went to Vietnam, was one of those who saw the potential of pangasius being cultured and grown in the Philippines on a commercial scale. “When we started to ask around, we found that there were already small breeders of pangasius here but they were not doing this on a commercial scale,” Angeles said. “They are bred only in aquariums because they are still considered as ornamental fishes.”
Seeing the growing market potential for pangasius, Vitarich soon found business partners in two aquaculture companies-Blue Bay Aqua Ventures, Inc. and Aqua Trends, Inc. both of which have the expertise to breed and market the pangasius fingerlings. “And since Vitarich has the technology on feeds to grow the fishes, the partnership was solidified and we’re working on this project to propagate pangasius.” Angeles disclosed.
Some local fishermen, though do not share the same level of excitement as Angeles and his partners do. “There’s this degree of hesitation among them and it’s understandable,” the agricultural sales and marketing veteran declares. “They are still afraid because there is no clear market. They would invest money but are doubtful if there are buyers out there. So we said there ought to be one final program of the project and that is to sort of give our farmer-fishermen insurance-and that’s a buy back. We thought of a risk sharing thing. They have to pay for the inputs, but they are assured of the buyers and that is us.”
And why would farmer/fishermen go into pangasius farming when there’s the growing local tilapia and bangus market that could always be tapped? Angeles has this answer: “Number one, the common concern in aquaculture today, especially if you’re involved in tilapia and bangus farming, is that they are not as durable or as hardy as pangasius. Bangus and tilapia cannot survive without oxygen. Pangasius can survive at an oxygen level of 0.01-that’s almost no oxygen at all!
Therefore, pangasisus can be spared from calamities such as fish kill and pollution because they have the capability to breathe in the surface.
“Number two, the number of species that you can stock on a per cubic meter of water space is thrice or more than tilapia and bangus. If you are growing pangasius in cages, a 30 to 50 cubic meter of space is going to be easy because fishermen in Vietnam are growing them at several times more and they still survive. If you can stock more fish per square cubic meter, the tonnage of the harvestable fish is going to be more and you can multiply it by the kilo and the price per kilo.
Number three. Vitarich is willing to buy your grown pangasius fish. We’re really developing the process of where to sell the fish just to prove the point that it can be sold and that it’s going to be feasible.”
Today, a two-centimeter pangasius fingerling is sold at 2.50 centavos each-that is, if someone is located within the Central Luzon area (price delivered). In other areas, breeders require a minimum volume of 50,000 fingerlings. Common sources come from Munoz, Nueva Ecija, Jala-Jala, Rizal and Apalit Pampanga. According to Angeles, a fisherman who is seriously pondering on going into pangasius farming should be able to spend around Php38 to Php40 on a fish kilo basis. “If we can buy it at probably a dollar, they can make money already. It’s not going to be something that they will lose their shirt in the process,” he quipped.
Growing pangasius, Angeles said, is far more easy than growing tilapia and bangus. This freshwater fish can be cultured in fishponds, concrete fish tanks, fish cages and fish pens. For earthen ponds, experts recommend around 1,600 sq. m or at least 400 sqm. Suitable depth is about 1.5 to two meters. The fingerlings to be put in the pond must be based upon the fish’s healthiness (without wounds, abnormalities and no diseases) and should be approximately of the same size to avoid fighting for food. The stocking rate should be about 10-15 fish per sq.m. Food for feeding are pellets, trash fish (to include water plants and small animals such as in sects and worms). Given the proper feeding and management, pangasius can grow to one to 1.5 kilos in five to six months time. Some very important things to remember in pangsius production are the following: traceability of the production (from processing plant to hatchery and feedmill) and environment (site selection and production practices and sanitation). Farmers/fishermen should avoid using insecticides, antibiotics, waste water and leftover food discharge to pond, illegal chemicals, etc. Pangasius fish growing is now seen as an alternative to raising tilapia and bangus.
Meanwhile, as the growing number of fishermen are trying to raise this new agricultural rising star, the processed pangasius fillets are now sold at around Php220-Php270 per kilo. Angeles said the taste and texture of the fillet is very apt for a lot of recipes and menus and is also suited for the discriminating Pinoy palate. “This could make for a yummy sinigang. Remember that in the fillet process, the head and the belly are left out so these could be made into sinigang sa miso. The fish can also be fried and grilled. The skin can be made into chicharon. Some said the pangasius’ belly has a similarity to the taste of salmon-rich creamy. Others say that the belly fat can be very good for sardines.”
Indeed, pangasius’ possibilities, according to Angeles, are endless: “Would you believe that in Vietnam, the oil from the fish is being used for biodiesel? There are no trashy parts here because even those that you think could be thrown out could be converted into fishmeal. What really excites us is that the government and the private sector are also with us in helping promote this fish. Through the intercession of BFAR’s Malcolm Sarmiento, Jr., Agriculture Secretary Arthur Yap and FRLD’s Angelito Sarmiento, we are officially launching this in Floridablanca, Pampanga. We all believe in the battle-cry of the Arroyo government to provide fish and rice for every Filipino table. So I’m urging our Pinoy farmers/ fishermen to raise pangasius. Somebody said if coconut is known as the “tree of life,” we might as well call pangasius as the “fish of life.” I believe it to be so.”