Soil Testing in Andaman and Nicobar By Agriculture Department

Estimated read time 4 min read

Farmers in Andaman and Nicobar face the challenge of determining the right type of fertilizer for their soil and crops. The soil-testing program initiated by the agriculture department aims to provide farmers with better knowledge and economical use of fertilizers, while enhancing soil management practices to increase agricultural production in the state.

To achieve high crop yields, it is crucial to apply sufficient fertilizers that address existing deficiencies. However, the quantities and types of fertilizers required vary from soil to soil and even from one field to another on the same soil. Fertilizing without first testing the soil is comparable to taking medicine without consulting a physician. While farmers are aware that fertilizers increase yields, the application of the right quantities and types at the right time and place remains a challenge. Without a fertilizer recommendation based on a soil test, farmers may end up using excess or insufficient amounts, which can lead to wastage and decreased crop yields.

Soil testing laboratories provide scientific fertilizer recommendations based on carefully conducted soil analyses and up-to-date agronomic research specific to each crop and field in Andaman and Nicobar. These recommendations take into account accurate analysis values, local crop research, and the management practices of individual farmers. The soil test and resulting fertilizer recommendation serve as a vital connection between agronomic research and practical application in the farmers’ fields. However, it’s important to note that soil testing is not the sole solution. To ensure good crop yields, farmers should also implement other sound management practices such as proper tillage, efficient water management, high-quality seeds, and adequate plant protection measures. Soil testing serves as an essential first step in maximizing yield and returns on fertilizer investments.

When collecting soil samples in Andaman and Nicobar, it is crucial to sample each field separately. If areas within a field differ significantly in crop growth, soil appearance, or elevation, it is advisable to sample each area separately. Furthermore, a composite sample should be taken from each area by collecting small samples from the surface to plow depth at multiple spots (10 to 15 per acre) and combining them in a clean bucket or container. For areas planted in rows, sampling between the lines is recommended. Avoid sampling unusual areas such as recently fertilized spots, old bunds, marshy areas, and locations near trees or compost piles, as these may not provide representative soil samples.

Using appropriate sampling tools is vital for collecting accurate soil samples. Soft and moist soils can be sampled effectively using soil tubes, spades, or trowels. For harder soils, augers or adzes can be more convenient, while post hole augers are suitable for sampling excessively wet areas like paddy fields. Extension workers responsible for soil sample collection should be equipped with these tools as well as a plastic bucket for sample collection.

During the sample collection process, farmers should be assisted in filling out the soil sample information sheet. This sheet plays a crucial role in generating accurate fertilizer recommendations. It must include background information such as crop variety, land slope, irrigation and drainage facilities, and previous cropping seasons. Noting any peculiarities in the soil or crop vigor can also provide valuable information for making appropriate fertilizer recommendations. The absence of this information would require the soil chemist to base the recommendations solely on soil test values.

The role of extension workers in soil testing cannot be overstated. They are key contributors to the efficient functioning of the soil testing service. Extension workers should ensure proper sample collection and dispatch to the laboratory. Additionally, they play a critical role in encouraging farmers to follow the fertilizer recommendations by establishing result demonstrations on farmers’ fields. For this reason, regular and comprehensive training for extension staff by the soil chemist is necessary to ensure the effectiveness and success of the soil testing program in Andaman and Nicobar.

In conclusion, soil testing plays a vital role in promoting agricultural success in Andaman and Nicobar. By providing farmers with accurate fertilizer recommendations based on soil analyses and agronomic research, it helps optimize fertilizer use and improve soil management practices. However, soil testing is just one piece of the puzzle; farmers should also implement other good management practices to achieve optimal crop yields. The collaboration between extension workers, farmers, and the soil testing laboratory is crucial for the success of the program and should be nurtured through training and support from the agriculture department in Andaman and Nicobar.


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