Paddy Nursery Management

kiran — Wed, 03 Oct 2018 04:26:22 +0000

Paddy Nursery Management kiran Wed, 10/03/2018 - 10:11

Nursery Management

It is very necessary to manage the nursery for the better production of the crop. For the nursery, the best performing and most popular variety must be selected. Select the area near to irrigation facility, drainage facility and free from shade.

Seed Bed Preparation

A nursery area of 300-400 m2 is enough to produce seedlings for transplanting 1 acre of land. To prepare seed bed one must plough the field properly after the harvest of Rabi crop. Then add 2 quintals FYM/Compost per 300-400 m2 nursery fields at least 25-30 days prior to sowing and puddle the field using paddy puddler. Make 1-2 raised bed/s of 15 cm height and a length of about 1m with 30 cm drainage channel between the beds.

Seed Quality

Certified seeds of high yielding varieties or hybrids should be purchased from a reliable source. The seeds must be clean, pure and healthy if one is using own seeds.

Seed Treatment

Prior to sowing, soak the seeds in water inside bucket and then discard the floating seeds In case of own seeds, soak 1.5-2 kg seeds in 1kg salt per 10 liters of water. Use sprouted seeds for sowing. For this the seeds are soaked into treated water i.e. Bavistin 2g/kg seed or Saaf 3g/kg of seed and then incubated in gunny bags in a well ventilated place. The sprout length should not be more than 7-8 mm.

Seed Rate and Sowing

Seed rate of 10-16 kg for HYV and 5-6 kg for hybrids is optimum. Broadcast the sprouted seeds uniformly for better anchorage into the raised beds.

Seedling age for transplanting

For long duration varieties, use 30-35 days old seedlings, for medium duration varieties use 25-30 days old seedlings and for short duration varieties using of 20-25 days old seedlings. When conditions are favorable, use younger seedlings and use older seedlings to cope with submergence and salt stress.

Fertilizer application

Apply 4 kg DAP, 2.4 kg MOP and 1 kg Zinc Sulphate as basal dose. Then apply 2.8 kg Urea after 13-15 days of sowing. If Iron deficiency is observed, apply 0.5% Ferrous sulphate.

Weeding

Apply soft (Pretilachlor 30 EC+ Safener) 60 g in the nursery area by mixing with 5-6 kg of sand at 1-3 days after sowing in standing water.

Irrigation

To save the young seedlings from the intense sun, avoid water stagnation during the day. Thus, apply irrigation particularly during evening hours.

DSR Paady Cultivation

kiran — Wed, 03 Oct 2018 04:26:00 +0000

DSR Paady Cultivation kiran Wed, 10/03/2018 - 10:11

Introduction

DSR is a resource conservation technology which involves sowing of seeds directly into the main field using seed drill rather than transplanting seedlings.

Field Preparation

DSR can be done on the same field as in the case of puddled transplanted rice but good leveling must be done for conserving the moisture, better crop emergence and better yield. The seeds can either be sown under conservation tillage or zero till method depending on site-specific factors.

Sowing

One can sow the seeds by two methods: 1) In moist soil condition and 2) In dry soil condition. It depends on the weather condition and the irrigation facility available. Since the seed quality greatly influences the germination rate, it is recommended to use the certified seeds at a seed rate 20-30 kg/ha having germination percentage >95%. The seeding depth is critical and the seeds must be sown at 1-2 cm and not deeper than 3 cm.

Varieties

Short duration varieties like Radha 4, Hardinath 2, Sukkha dhan 1, Tara,etc. are suitable only for the upland condition. Medium and Long duration varieties like Ramdhan, Sabitri, Loktantra, Mithila, Sukkha 4, etc. can also be used for the lowland condition.

Seed Treatment

Seed treatment such as priming i.e. soaking the seeds for 10-12 hours in a gunny bag, accelerates the crop emergence. The seed is then air dried and incubated and it must be sown into moist soil. Sowing into dry soil may adversely affect the emergence of pre-germinated seeds. Also seed treatment with fungicides can be done to manage the diseases such as rice blast, brown spot, false smut, etc.

Fertilizer Application

All fertilizers except urea should be applied at sowing. N dose varies depending on variety from 80-120kg/ha and applied in at least 3 minimum split doses. The requirement for other fertilizers is P₂O5 at 60 kg/ha, K₂O at 60 kg/ha and ZnSO4 at 25 kg/ha. DAP should be used with seed drill while sowing.

Weed Management

Since the weed infestation is high in case of DSR, it is necessary to manage the weeds either by preparing stale seedbed, or by manual hand/tool weeding or by use of chemical weedicides.

Irrigation

Irrigation is critical during first three weeks. It is required during tillering to flowering stage. There should be no water stress during Panicle Initiation and Grain filling Stage. It is crucial to have a better drainage facility for DSR.

Technologies Used

Paddy Nursery Management

DSR Paady Cultivation