General information:-

Spinach belongs to family of "Amaranthaceae" and it is native of central and western Asia. It is perennial vegetable and cultivated throughout the world. Spinach is also known as "Palak" in Hindi. It is a rich source of iron, vitamin and anti-oxidants. It has many health benefits. It helps to increases immunity. It is good for digestion, also good for skin, hair, eyes and for brain health. It has anti-cancer and anti-ageing property. Andhra Pradesh, Telangana, Kerala, Tamil Nadu, Uttar Pradesh, Karnataka, Maharashtra, West Bengal and Gujarat are leading producing states of spinach in India.

Climate:-

 Season
Temperature
15-30°C
Season
Rainfall
80-120cm
Season
Sowing temperature
25-30°C
Season
Harvesting temperature
15-20°C

Soil:-

It can be grown on any type of soil having good drainage capacity. But it give good result when grown on sandy loam and alluvial soil. Avoid acidic soils also water logged soils for spinach cultivation. pH of soil should be in range of 6 to 7.

Popular varieties with yield:-

Punjab Green: Plant is semi errect with dark shining leaves. Ready for first cutting in 30 days after sowing. Gives average yield of 125 qtl/acre. It has low oxalic acid content.

Punjab Selection: Foliage is light green color, thin, long and narrow. Leaves are lightly sour in taste. Purple pigmentation present on stem. It gives average yield of 115 qtl/acre.

Other state variety:

Pusa jyoti, Pusa Palak, Pusa harit, Pusa Bharati

Land preparation:-

Soil should be prepared by ploughing 2-3 times. After ploughing do levelling of soil for uniform bed formation. Prepared bed and irrigation channels.

Sowing:-

Time of sowing
Spinach is sown throughout the year. For winter season, best time for sowing is from September to October. For spring season complete sowing from Mid-February to April.

Spacing
Use row to row spacing of 25-30 cm and plant to plant spacing of 5-10 cm.

Sowing Depth
Sow seeds at depth of 3-4 cm.

Method of Sowing
Sowing can be done by line sowing and broadcasting method.

Seed:-

Seed Rate
For winter season use, seed rate of 4-6 kg and for summer crop use seed rate of 10-15 kg per acre.

Seed Treatment
Before sowing soaked seeds in water for 12-24 hours. It will increased germination percentage.

Fertilizer:-

Fertilizer Requirement (kg/acre)
UREA SSP MOP
75 75 -
Nutrient Requirement (kg/acre)
NITROGEN PHOSPHORUS POTASH
35 12 -
For good yield, apply well decomposed [email protected] qtl and [email protected] kg (in form of [email protected] kg), [email protected] kg (in form of [email protected] kg) per acre. Apply whole amount of well decomposed cowdung and phosphorus along with half amount of nitrogen before sowing. Apply remaining amount of nitrogen in two equal splits after each cutting. After fertilizer application provide light irrigation.

Weed control:-

To keep check on weeds along with to provide aeration to soil two - three hoeing are required. To control weed chemically, use [email protected] kg/acre as pre-emergence herbicide. Do not use weedicide afterwards.

Irrigation:-

For proper seed germination and good growth soil should have enough moisture content. At time of sowing if proper soil moisture is not present in soil then provide pre-sowing irrigation.
First irrigation should be given after sowing. In summer month, apply irrigation at interval of 4-6 days where as in winter month apply irrigation at interval of 10-12 days. Avoid over irrigation also care should be taken not to water on leaves, as it will leads to occurrence of disease and deterioration of quality. Drip irrigation is proves to be beneficial for spinach cultivation.

Pest and their control:-

Aphid: If infestation is observed, take spray of Malathion [email protected] ml/ 80-100 ltr of water. Do not harvest crop immediately after spraying of Malathion. Harvest seven days after spray.

Disease and their control:-

Cercospora Leaf spot: On leaves, small circular to semi-circular spots with grey centre and red margins appeared. On seed crop, if infestation is observed, take spray of [email protected] gm or Indofil [email protected] gm in 150 ltr of water per acre. If necessary, repeat spray with intervals of 15 days.

Harvesting:-

Depending upon variety, crop is ready for first cutting 25-30 days after sowing. For harvesting, use sharp knife or sickle. Depending upon variety and season, subsequent cutting should be done at interval of 20-25 days.

Seed production:-

For seed production, use spacing of 50 cm x 30 cm. Keep isolation distance of 1000 m around palak seed plot. Skip one row after every five rows; it is essential for field inspection. Remove disease plant; also remove plant showing variation in leaf characteristic. Harvest crop when seed stalks turn brown. After harvesting keep plant in field for curing and drying purpose for a week. After proper drying, for seed purpose, threshing of crop is to be done.

References:-

1.Punjab Agricultural University Ludhiana

2.Department of Agriculture

3.Indian Agricultural Research Instittute, New Delhi

4.Indian Institute of Wheat and Barley Research

5.Ministry of Agriculture & Farmers Welfare