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22
Aug

Weed management

Weeds management in the main field is done by the following steps:

• Butachlor @ 2.5-3.0 kg is to be mixed with 50-70 kg of sand and applied in 1 ha at 5-6 days after transplanting (DAT).

• A uniform level of 2 cm depth of water is to be ensured in the field for 3-4 days.

• Need based hand weeding is recommended to ensure healthy crop.

File Courtesy: 
CRRI
22
Aug

Transplanting

File Courtesy: 
CRRI
Photo Courtesy: 
CRRI
22
Aug

Main Field Management

After nursery management, the main field has to be prepared and managed for the proper growth of the crop. In this process the following steps are followed:
1. Transplanting
2. Weed management
3. Nutrient management
4. Water management
5. Disease management
6. Insect management
7 Harvesting & Threshing

File Courtesy: 
CRRI
22
Aug

Nursery Management

File Courtesy: 
CRRI
22
Aug

Planting Season

Sowing of hybrid seed should be adjusted in such a way that the crop is not exposed to extremely high or low temperatures particularly at panicle initiation & flowering stages.

File Courtesy: 
CRRI
22
Aug

Agronomic Management for Hybrid Rice Cultivation in West Bengal

• Appropriate agronomic management is necessary for obtaining the potential yield of rice hybrid.
• Management practices differ from location to location & from season to season depending on local conditions.
• As the cost of hybrid seed is comparatively higher, it is very important to use the seed economically by following specialized nursery raising as well as planting & management techniques.
• It is discussed under the heads viz.
1. planting season,
2. nursery management,
3. main field management, &
4. grain storage

File Courtesy: 
CRRI
22
Aug

Importance of Hybrid Cultivation in West Bengal

• Rice is the staple food for more than 70% of the Indians.
• To meet the food demands for ever increasing population & to maintain self-sufficiency of rice, the present production level of 96 million tons (mt) needs to be increased to about 120 mt by the year 2020 in India.
• Hybrid rice is one of the practically feasible & readily adoptable technologies to increase production & productivity of rice in the country.
• Yield advantage of hybrids to the tune of 15-20% over the HYVs is well established.

File Courtesy: 
CRRI
6
Aug

Biasi system of land preparation in Bastar

1. Biasi is a set of cultural operations traditionally practiced in direct seeded rice.

2. In this operation, the field is ploughed by an indigenous plow in standing water 30–50 d after emergence.

3. Bullock plowing often followed planking and chalai (thinning and distribution) operations.

4. This system is very popular in the eastern region of India. The effectiveness of the system greatly affects yield. Often, operation is delayed because there is less rain to flood the field.

File Courtesy: 
IGKV, Raipur
5
Aug

Nutrient management in transplanting system of rice cultivation

1. Nitrogen levels: 100-120 kg N/ha: 50-60 Kg P/ha: 40-50 Kg K/ha.

2. Application of urea in four splits i.e., 10:30:30:30 or 20:30:20:30 as basal, at tillering, PI and preflowering stage, respectively increased the grain yield and nitrogen use efficiency in medium duration varieties grown in matasi (Sandy loam) soil.

3. The use of soil treated (conditioned) urea @ 1:3 applied 30% at planting, 40% tillering and 30% at PI was found comparable to USG and SCU in Dorsa soil (clay-loan) for medium duration rice varieties.

File Courtesy: 
IGKV, Raipur
5
Aug

Nutrient Management in Biasi (Beushning) system of rice cultivation

1. Apply 100-120 Kg N: 50-60 Kg P: 40-50 Kg K /ha to high yielding varieties.

2. In medium to heavy soil, N should be applied in three splits in the ratio of 30:40:30 or 25:50:25 at biasi, maximum tillering and PI stage (where herbicide is not used).

3. In light soils, N should be applied in four splits in the ratio of 10:40:40:10 as basal, at biasi, PI stage and pre flowering stages, respectively (where herbicide is not used).

File Courtesy: 
IGKV, Raipur
5
Aug

Nutrient management in line sowing method of rice cultivation

1. Level: Early variety – 60-90 kg N/ha: 40-50 Kg P/ha: 30-40 Kg K/ha.
Medium vareity - 100-120 kg N/ha: 50-60 Kg P/ha: 40-50 Kg K/ha

2. Apply N 20% in light soil and 30% in heavy soils as basal drilled along or by the side of the seed followed by 40% at tillering and 40% at PI stage for higher yields.

3. In light soils and in medium and late duration varieties splits application of nitrogen in the ratio of 20:30:25:25 as basal, active tillering, maximum tillering and PI or pre flowering stage proved more effective.

File Courtesy: 
IGKV, Raipur
5
Aug

Nursery raising

1. Wet bed method:

Wet nurseries are preffered under irrigated conditions.

The soil is puddle by two to three runs of puddler or three to four ploughings with local plough. After one or two days of puddling, divide the nursery areas in to narrow beds of 1.25 m width and of any convient length depending upon the slope.

File Courtesy: 
IGKV, Raipur
Photo Courtesy: 
ZARS, Mandya
5
Aug

Utera system of Cultivation

Under the rice-utera(paira) cropping system, rice linseed, rice alone, rice lentil and rice chickpea.

In deep water areas, rich fish farming has also been evaluated at several places in the region. Rice-lathyrus and rice linseed is common.

Rice-wheat system:  This cropping system is predominant in large areas under rainfed shallow lowland.

Rice-lentil system

File Courtesy: 
ICAR NEH, Umiam
5
Aug

Rice growing soils of Chhattisgarh state

Variations in most soil properties in the state are closely related to their position on the landscape. the brief characteristics of soil of three agro-climatic zones are given below,

Chhattisgarh Plains :

File Courtesy: 
IGKV, Raipur
5
Aug

Rice growing season of state Chhattisgarh

 Seasonal name : Kharif                                                 

File Courtesy: 
IGKV, Raipur
5
Aug

Harvesting for Irrigated Rice

1. Harvest when more than 95% plants are mature. It may be needed to provide protection against birds at harvesting stage.

2. Leave the border rows and select the seeds from middle rows for storage.

3. Store seeds after proper sun drying in a dry place. Label seeds properly.

File Courtesy: 
ICAR NEH, Umiam
5
Aug

Weed control and interculture for Irrigated Rice

 

1. Adopt hand weeding 2-3 times at 20 days interval starting from 20 days after planting. This is done before the top dressing of urea.

2.Wherever weed problem is acute, selectively apply selective herbicides after the seed germination and before emergence of the weeds.

3.Apply Butachlor @ 1. 5-2.0 kg/ha at the time of transplanting (pre-emergence) followed by hand weeding at 25-30 days after transplanting.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
CRRI
5
Aug

Water management for Irrigated Rice

 

1. Proper water management facilitates good tillering in the crop, increases efficiency of nitrogen use by plants and helps to reduce weed population.

2. Maintain 2-5 cm water throughout the growing season. Drain out water before topdressing with nitrogen fertilizer and let in water 24 hours later.

3.Depending on the soil type, drain out water 15 – 20 days after 50% flowering. This ensures fast ripening of the grains.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Mr. Chaitanya, DRR
5
Aug

Transplanting for Irrigated Rice

 

1. Level the main field after fertilizer application and maintain a thin film of water.

2. Transplant 30 – 35 days old seedlings (4-5 leaf stage) from wet or dry bed nursery. Plant at shallow depth of 3-4 cm with 2 seedlings per hill.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
Mr. Chaitanya, DRR
5
Aug

Fertilizer application for Irrigated Rice

 

1. Use 60 -80 kg nitrogen/ha, in three equal split doses. Apply one-third nitrogen as a basal dose and incorporate the nitrogen applied in soil.

2. Apply one-third of nitrogen as top dress at early tillering stage. Apply the rest of nitrogen dose a week before panicle initiation. Drain out water before topdressing with nitrogen fertilizer and let in water 24 hours later.

File Courtesy: 
ICAR NEH, Umiam
Photo Courtesy: 
CRRI
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