The Fertilizer-Cost-and-Availability Crisis Requires Farmers to Practice Precision Farming to Stay in Business

The Fertilizer-Cost-andAvailability Crisis Requires Farmers to Practice Precision Farming to Stay in Business

Efficient Fertilization Practice is now a necessity!

Noel Garcia, CCA – Chief Operating Officer & Senior Consultant, TPS Lab

Since the onset of 2020, fertilizer prices have been exploding. But now, simply the availability in addition to evermore outrageous cost of fertilizer due to a variety of well-publicized reasons has become very seriously problematic. Presently, there seems to be no ceiling to cost escalation or foreseeable end to limitations on supplies. This means that every pound or gallon of fertilizer applied must be utilized by the crop to the greatest extent possible.

About “Precision Farming”: This term has implied mechanical means of precise seed and fertilizer placement, variable-rate fertilizer applications based on grid soil sampling and nearinfrared ærial surveys, metered applications of fertilizers through irrigation systems and GPS guidance of tractors and sprayers. But realistically, these approaches address only a modest part of achieving maximum crop performance with the most efficient use of money and resources. Whether or not precision mechanical means are used, here some of the most important considerations when attempting to get the most out of the least: • “Traditional” practices have got to go! Here are the biggest mistakes I’ve seen farmers make over and over again during my 30-plus years with TPS Lab: • The major application of fertilizer being made at the start of the growing season, expecting it to suffice for the entire season. • • The wrong fertilizer for the soil type or crop. Not keeping up with the latest advances and discoveries in crop nutrition. • Not using bio-stimulants to improve crop performance and its resistance to disease and insects. • Ignoring existing soil nutrients which are plantunavailable, especially in calcareous, high-pH soils. • Ignoring irrigation and spray water quality. • • Ignoring soil health/life. Not planning beyond this year’s crop using the

“Regenerative Agriculture” approach. • • • The key issues in efficient crop production are: Timing and placement of fertilizer applications. The correct fertilizer for your soil type, the crop and its stage of development. • • Acceptable irrigation and spray water quality. The use of biological inoculants and bio-stimulants, such as amino acids, growth hormones and other beneficial products that may not be essential for plant growth.

Timing and Placement of Fertilizer Applications Is Crucial – Many farmers apply the bulk of their fertilizers at the onset of the season. This is colossally wasteful, as plants develop their appetites and tastes with growth, much of the fertilizer has been dissipated by the time the plants start needing it the most. This is particularly true with N. Remember that crop nutritional needs change throughout the growing season, so applying the wrong fertilizer at the wrong time for your particular crop wastes much of your money. As to placement, with row crops, side-dressing can require much less fertilizer and starter “popup” fertilizer is astonishingly effective in getting crops off to fast vigorous starts. After emergence, the use of foliar sprays is the most efficient method of getting nutrients into plants.

About Foliar Sprays – In some areas of the country, particularly the Corn Belt, foliar sprays of plant-beneficial and nutritional agents are typically seldom used, as this area of the country has been historically known as having the highest-producing capacity of corn and soybeans per acre. Unfortunately, the Midwest’s rich soil nutrient pool is declining due to reduction of soil organic matter (soil carbon) much like the rest of the country. This leads to nutrient deficiencies, especially micronutrients, that limit plant genetic potential resulting in reduced yields and quality. As a result, increased disease and insect pressure

increases input costs of additional fungicides and pesticides which reduces return on investment. Here, foliar sprays of bio-stimulants, micronutrients and trace elements can have big, faster and longer-term impacts on crop health, performance and economics.

Type of Fertilizer – Here is where a Soil Test is really important! If you have calcareous soils and buy micronutrients in the oxide form, you have literally thrown money on the ground with no benefit at all. When it comes to nitrogen, there can be a huge difference between anhydrous ammonia, urea, ammonium nitrate and ammonium sulfate as to its longevity, its utilization by the plant and its impact on native soil chemistry and soil life. Is it nitrate nitrogen, ammonia nitrogen or organic nitrogen? The forms of other nutrients are equally important – for example, MAP or DAP? Choosing the best fertilizer for your specific soil conditions or foliar fertilizer for specific stage of growth can save huge amount of money and increase ROI. This is the reason why some have not seen much success from the use of foliar sprays. The wrong product, mixing incompatible or antagonistic products together, wrong application rates, missing critical stages of growth and inadequate water quality are quite common mistakes.

Plant Sap Tests at critical stages of crop development during the season are crucial to determining the nutritional needs of the crop so that no more than necessary of what is applied, thus saving money and limited supplies. Plants eat and drink every day and their tastes and appetites change with time. Those changing needs (but no more than needs) must be accommodated to have some assurance of a profitable outcome.

Advances and Discoveries in crop nutrition and health are being made all the time – particularly in the chelated forms of micronutrients, resulting in a much higher efficiency of plant uptake and utilization. This means using less to produce more. A fairly recent discovery is foliarly-applied water-soluble silicon. Si stiffens and hardens cell walls, thereby discouraging piercing and gnawing insects and resist disease – and lodging. Si forms a very thin hard layer that resists nematodes and soil pathogens on roots. A very recent tool is nanoparticles that encapsulates the inputs you already use into tiny nanoparticles that glide through foliar and root barriers, thereby improving efficiency and speed of uptake and reducing the energy required by the plant to get nutrients into its cells.

Bio-Stimulants – There is more to crop health and nutrition than just chemistry. These game-changers include organic acids, growth hormones and biological inoculants that can dramatically improve crop performance, nutrient uptake efficiency and resistance to disease and insects - thus reducing or eliminating entirely the need for costly pesticides and fungicides. Encourage the plants, microbes and other soil life to do much of the heavy lifting!

Already Existing Soil Nutrients – Particularly in calcareous soils, many of the metal nutrients exist as carbonate and bicarbonate chemical compounds often in abundance – all very insoluble and therefore unavailable to plants. The standard soil treatment is sulfur but the latest method also includes the use of bio-stimulants. These break the chemical bond by chelating the nutrients into bioavailable forms. Humic/Fulvic Acids, Amino Acids, Enzymes and beneficial soil bacteria from additions of soil inoculants all play a vital role to access this nutrient pool. Additions of these bio-stimulants to your existing fertility program can increase your fertilizer efficiency by more than 20% in most cases, allowing you to cut back on fertilizer in times of high cost and limited availability, and have long-term cumulative benefits.

Water Quality Test – Irrigating with hard or salty water can have dramatic impacts on soil chemistry and structure, because What’s In Your Water Becomes Part Of Your Soil ®. As aquifer levels fall, natural dissolved minerals become more concentrated. There are several methods to remediate soil. Using hard water for the spray mix can change the chemistries of spray agents to the extent of making them ineffective and possibly damaging plants. Appropriate water treatment is needed to offset or remediate these problems.

Regenerative Agriculture – Planning beyond this year to reduce costs and increase crop performance by regenerating soil structure and health/life, thereby increasing long-term nutrient availability and carbon sequestration, reducing future costs and resources. Reduction of soil disturbance and continuous vegetation cover on soil as much as possible increases the amount of diversity of organic residues to maximize nutrient and water use efficiency by plants. Restoring overall microbial life is essential to soil/ plant health and biodiversity. This sustainable approach is a long road to travel but it must be initiated if farmers want to be successful over prolonged challenging times.

Bottom Line – Maintaining balanced nutrition and vigorous soil life at every stage of your plants’ life cycle will ensure that no matter what challenge Mother Nature sends, your crops will have the best chance of making you money. Soil, Water and Sap Testing is one of the best investments a grower can make, especially during these times of uncertainty with exorbitant fertilizer prices so you can apply only what your crop needs, where it needs it and when it needs it!

Don’t guess and hope for the best!