Technologies to Enhance Crop Security of FODDER BEET, a High Yielding Green Fodder Crop Gaining Popularity in Arid Regions

The availability of green fodder for the livestock of the farmers of arid regions has been a challenging task due to the harsh and unpredictable environment of the regions. Providing a significant solution for the problem, the ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan has come up with a new fodder crop, that is, Fodder Beet (Beta vulgaris), a plant that produces tubers of an average weight of 5 to 6 kgs.

Why Fodder Beet?

• High yield potential (20 t DM/ha+), so you need less land to winter the same number of animals

• High utilization (typically 90%), for improved animal performance

• Relatively low-cost c/kg DM at high yields

• Unaffected by most brassica diseases

• Versatility

Fodder beet has a number of features which can benefit dairy, beef, sheep and deer farmers. Whether grazed in situ, or lifted and fed out, the potential yield, feed value, utilization and economics of this crop stack up well in many different farm systems. Fodder beet demands good management to reach its potential, and care must be taken with animal feeding. Brassicas like kale and swedes have lower establishment costs, and can be sown on more diverse land classes. If you’re new to fodder beet, seek advice from your retailer well before sowing.

The successful integration of fodder beet into the farm system, like any crop, requires careful selection of varieties and good practice to achieve high yields, good utilization, and manage transition risks.

Fodder Beet Types

It’s important to choose the correct fodder beet variety for your feed requirements and intended use (grazing, lifting or both). Good starting points for this decision are bulb DM content, and whether the crop is only intended to be lifted. Table 1 below highlights some of the typical bulb DM % ranges of varieties available in India.

Fodder beet can be divided into three groups based on these factors:

Fodder Beet in Livestock systems

Fodder beet forage systems provide a flexible, high quality feed option which have the potential to deliver high yields in autumn, winter and early spring with inherently high rates of utilization by livestock. Many different livestock systems can benefit from the inclusion of fodder beet (see Table 1). Successful farm system outcomes from grazing fodder beet rely on appropriate grazing management which minimizes the risk of animal health and production issues. This includes a suitable diet plan and a well planned and executed transition phase with appropriate choices around supplement use.

The package of practices of the crop has also been adopted by the Rajasthan State Department of Agriculture. The crop is now being grown in other agro-climatic regions as well. The farmers of Madhya Pradesh, Haryana, Chhattisgarh, Maharashtra, Kerala and Uttar Pradesh have also tried and gave a positive feedback about the crop (Source, ICAR).

Planning or preparation of land

Soil test 6-12 months before sowing. Choose suitable paddocks(s). As the seed of this crop is small, a fine tilth is required for its sowing. A deep ploughing with disc plough or MB plough followed by two cross harrowing should be done. Afterwards make ridges of 40cm width, 15cm high and furrows of 30cm with a ridge maker.

Sowing date

Sowing date is location and season dependent, but early October to late November is generally recommended, once soil temperature is consistently above 10°C. About 2-2.5kg seed/hectare is required. Sowing too early (<10°C) can result in uneven germination, making spray timings difficult, as well as risking vernalization, where the plants bolt to flower in late summer. Later sowings shorten the growing season, reducing yield potential.

Research findings can conclude that transplanting technique can be used to achieve target plant populations of fodder beet crops.

Manures and Fertilizer requirement

It is a heavy feeder and hence respond very well to nutrient application. Apply 25-40 tonnes FYM/ha during land preparation. Nitrogen, phosphorous and potash should be applied @ 150:75:150 kg/ha. Sulphur and Zinc @ 30 and 25 kg/ha should also be applied if soils are deficient in them (Source: CAZRI).

Nitrogen should be applied in three splits, that is, half at sowing and 1/4 each at 30 and 50 days after sowing (DAS) (Source: ICAR).

Intercultural operations

Fodder beets are slow to germinate and if planted too early or in cold wet weather, weed seeds will germinate first and out-compete the seedlings hence, manual weeding along with earthing up should be done at 30 and 50 DAS.

As most of the fodder beet varieties are multigerm, more than one seedling may emerge from single seed, so all the extra seedling expects one per hill should be removed and where required gap filling should be done.

Irrigation

Irrigation is required throughout the summer months for the crop to attain its maximum yield. A total of 8–12 inches may be needed depending on the variety. The total amount of water that should be applied need not vary with soil type, but irrigation frequency and rate should. For example, irrigate light sandy soils more frequently but at a lower rate per application than heavier soils.

Harvesting

Normally it starts 120 days after sowing. However, as the roots do not spoil in the soil, early harvest is not necessary. Care should be taken not to bruise the skin of roots while digging out.

Top the crop (remove leaves) to within 2–4 inches of the top of the root or allow animals to forage the tops off, but ensure that the animals do not uproot the beets. Complete leaf removal is important to prevent re-sprouting if you are storing in piles. It is not necessary to remove all the soil from the roots, as some soil can improve root storability, but it does need to be removed prior to feeding. Fodder beets that are cut or damaged by harvesting equipment will likely rot in storage. Similarly, if tops are cut too close to the root, the root will be more susceptible to rot.

Feeding to animals

Cleaned roots and leaves can be fed directly to the animals. Dairy animals can be fed fresh fodder beet along with leaf @ 10-15kg/animal/day with other green and dry fodder materials. A one-week transition with 1kg roots is recommended.

Over doses may cause bloat. For sheep and goat 4-7kg/animal/day fresh beet is optimum. This can be feed to pigs also. Roots can be chopped and mixed with concentrates or dry fodder. It can be stored by sun drying chopped roots and then fed to animal afterwards mixed in concentrates (Source: CAZRI).

Crop rotation

Fodder beet should not be grown every year on the same field. It can be grown in rotation with cowpea, cluster bean, pearl millet in kharif and oats, berseem in rabi.

Yield

The individual root size varies from 2.5-4.5 kg. bigger than this size is also not uncommon. About 20% fodder is received as leaf foliage. Average fresh fodder yield after following these standard practices varies from 65-100 tones/ha.

Diseases, Insect pests and Nutritional disorders of Fodder Beet

Author

Vinayak Rudra,

M.Sc. (Hons.) Horticulture,

Department of Vegetable Science,

Sri Konda Laxman Telangana State Horticultural University, Mulugu, Siddipet District,

Telangana, India-502279.

Cell No.: +918374719146, +919182241441

e-mail ID: [email protected]