Rice Production: Pre-Planting Activities

This post by Nextech Agri Solutions aims to provide practical knowledge necessary for small-scale farmers entering the rice production business. Beginning with the pre-planting activities, this post will cover the rice varieties to choose from, information on seed quality, crop calendar and land preparation.

This post by Nextech Agri Solutions aims to provide practical knowledge necessary for small-scale farmers entering the rice production business. Beginning with the pre-planting activities, this post will cover the rice varieties to choose from, information on seed quality, crop calendar and land preparation.

These are 4 of the most important activities before the rice planting, and needs to be taken care of if one anticipates a high, prosperous yield.

1. Selecting the rice variety

It’s fairly important to begin with healthy seeds of a locally adapted rice variety. This ensures that the crop has a high yield and attracts good market price, and is also cheaper than importing high-potential varieties from other countries.

Mentioned below are the characteristic features a good rice variety must possess:
– Appreciable cooking characteristics, colour, aroma, taste and shape
– High selling price
– Stability
– Optimum yield over multiple seasons
– High tillering capability for competing against weed
– Tolerance against crop diseases and pests
– Resistance to droughts and floods
– Exact maturity length that matches the growing season

2. Seed quality

The crop quality entirely depends on the seeds sown. Since seeds are the foundation of any crop, it becomes pivotal that one ensures that the seeds utilized are of optimal quality.

Good quality seeds ensure the following benefits:
– Increased uniformity
– Less replanting
– Lower seed rate
– Better emergence (greater than 70%)
– High initial growth
– Increased resistance against pests, insects and diseases
– Decreased weed
– Increased yield

The following factors are used to determine the quality of rice:
– Varietal purity: It involves the percentage of germination, moisture content, weed, other crop seeds, stones and red rice seeds.
– Viability: Germination potential, moisture level and vigour are used to determine the seed viability.

The germination rate is indicative of seed vigor. A swift rate of germination shows that the seed will establish itself well in the field stage. Weaker seeds are easily affected by environmental stress and are known to produce weaker seedlings.
– Moisture Content: As such, moisture content should be less than 14%

3. Crop Calendar

Crop calendar provides for a reliable framework for all the subsequent farming activities.
It provides a clear schedule from seed sowing to storage and allows the farmers to:
– Decide the input purchase
– Prepare a budget for all the activities
– Determine labour, capital and credit requirement
– Prepare land and harvest

Based on local experience and with the help of agricultural promoters, determine the best date to plant. Determine the time it takes for your chosen variety to harvest. Establish the labour and finance requirements at each of the subsequent steps, i.e. plowing, weeding, fertilizing, etc.

4. Land Preparation

This is the final step before we begin with the planting. It is an important step which helps control weeds, recycles plant nutrients and provides for a sustainable surface and soil mass for direct seeding.

As such, land preparation either begins during fallow, i.e. the period wherein a field is left uncultivated so it regains its fertility, or immediately after the previous harvest. Moreover, it usually takes around a month for complete land preparation.

It typically involves 3 different stages which are:
– Clearing the field
– Creating compost from rice residues
– Planting cover crops to enrich soil and suppress weeds

 

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How to Determine the Moisture Content in Paddy?

Moisture content, as we define it, is the weight of water in rice or paddy expressed in percentage. In post-harvest handling, MC is stated on a wet basis (MCwb). Simply put, it’s percentage of water in a wet grain.
The importance of measuring moisture content

It’s imperative to determine accurate moisture content. This is done with a view to effectively manage and market paddy, for each purpose requires different moisture content.

Moisture content, as we define it, is the weight of water in rice or paddy expressed in percentage. In post-harvest handling, MC is stated on a wet basis (MCwb). Simply put, it’s percentage of water in a wet grain.

The importance of measuring moisture content

It’s imperative to determine accurate moisture content. This is done with a view to effectively manage and market paddy, for each purpose requires different moisture content.

For e.g. 18% MC for storing grains up-to 2 weeks, 9% for long-term storage, etc.

Inaccurate moisture testing could lead to:

  1. Grain loss if excessively dried
  2. Increased drying costs and paddy loss if milled at high moisture content
  3. Lower head rice, when milled at wrong moisture content
  4. Weight loss when dried excessively
  5. Mold development
  6. Heat buildup in the grain
  7. Pest infestation
  8. Discoloration
  9. Reduced yield
  10. Loss of germination

How to measure paddy moisture content?

There are two widely used methods to measure moisture content. These are:

1. Primary Method: It is based on weight measurements and is ramified into 2 steps:
– Oven method
– Infrared method
2. Secondary Method: It involves measuring the electrical traits of grains using an electronic instrument

There are a number of different portable moisture meters available in the market. One simply has to make sure that the chosen meter is suitable for harvesting paddy or grains to be milled, depending on whatever you’re planning to do.

Let’s take a look at the moisture content required for different post-production activities:

Paddy Harvesting

When harvesting paddy, one needs to keep in mind that lower moisture content can possibly lead to grain shattering and higher moisture content can lead to losses owing to poor grain quality.
– Ideal moisture content: 20-25%
– Primary losses: Grain shattering and poor quality

Paddy Threshing
– Ideal moisture content: 20% for manual threshing and 20-25% for mechanical threshing
– Primary losses: Breakage/cracking, grain damage and partial threshing

Paddy Drying

The drying process should begin within 24 hours of harvest. Otherwise, there’s a very high possibility of quality deterioration and grain damage.

It should also be noted that seeds should be dried well below 12% moisture content while grains to below 14%.
– Ideal moisture content: 14% or lower
– Primary losses: Discoloration, spoilage and fungal infestation

Rice Storage
– Ideal moisture content:
14% or less if it’s to be milled or stored or a month
Less than 13% for storage up-to 12 months
12% for seed storage
– Primary losses: Pest infestation, fungal infection, loss of germination, etc.

Rice Milling
– Ideal moisture content: 13-14%
– Primary losses: Cracking and breakage

I sincerely hope this post would be helpful to all those planning to venture into the business of rice processing and milling. For any further assistance, feel free to contact Nextech Agri Solutions, one of the best Rice Mill Consultants in India.

 

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