Effect of spacing's and varieties on growth, yield and economics of transplanted redgram (Cajanus cajan) Dr. C. Sudha Rani Principal Scientist & Head ARS,

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Presentation transcript:

Effect of spacing's and varieties on growth, yield and economics of transplanted redgram (Cajanus cajan) Dr. C. Sudha Rani Principal Scientist & Head ARS, Tandur PROFESSOR JASHANKAR TELANGANA STATE AGRICULTURAL UNIVERSITY, HYDERABAD, INDIA

Redgram (Cajanus cajan (L), commonly known as pigeonpea, Arhar and Tur is an important pulse crop in grown in India. Redgram is mainly cultivated and consumed in all the developing countries of the world. Redgram is widely grown in India. India is the largest producer and consumer of Redgram in the world. Redgram accounted for about 20 percent of the total production of pulses in the country during the year Redgram is a protein rich staple food. It contains about 22 percent of protein, which is almost three times higher than that of cereals. INTRODUCTION

The biological value improves greatly when rice / wheat is consumed with Redgram because of the complementary relationship of the essential amino acids. It is particularly rich in lysine, riboflavin, thiamine, niacin and iron. This protein rich pulse occupies an important place among rainfed resource poor farmers because it provides quality food, fuel and fodder. Its soil rejuvenation qualities such as release of soil bound phosphorous, atmospheric nitrogen fixation, recycling of soil nutrients and addition of organic matter and other nutrients make the pigeonpea crop an ideal crop of sustainable agriculture in the tropical and sub-tropical regions of India. Major Redgram producing countries are India, Myanmar, Malawi, Uganda and others.

Area, Production and productivity of pigeonpea in Asia for the last 60 years

Area, Production and productivity of pigeonpea in India for the last 50 years

Area, Production and productivity of pigeonpea in major states of India

Area of pigeonpea in major states of India

Timely sowing is very important in redgram crop in realizing good yields. In our Telangana state, generally redgram is sown between June and August months in various agro-climatic zones. The crop comes to reproductive stage between September to November months. During the years of low rainfall, the reproductive phase of the crop coincides with moisture stress conditions and associated terminal drought situations. Any measure of advancing the planting time reduces the risk from terminal drought stress. But, late onset of monsoons, which are being experienced more frequently, doesn’t allow for timely sowing. Basis for experimentation

In such situations raising the nursery in advance (in the month of May) and transplanting the 30 – 45 days old redgram seedlings with the onset of monsoon is the best method to protect the crop from terminal drought stress during poor rainfall years due to enhanced deep rooting. The main objective of the study was to study the effect of different spacings and redgram varieties and their interaction under Transplanted conditions

Transplanted Redgram (Nursery)

Yields can be increased twice or thrice by transplanting method

Problems in Normal sowing method Due to late onset of monsoon timely sowings are not possible Due to late onset of monsoon timely sowings are not possible Cessation of rains before flowering Cessation of rains before flowering Exposure of crop to moisture stress during the pod developing stage Exposure of crop to moisture stress during the pod developing stage Due to lack of proper maintenace of plant population. Due to lack of proper maintenace of plant population.

Sowing will be taken up at the end of June in normal sowing method ….In Transplanting method days old seedlings will be transplanted by June end

Management practices in Transplanting method Selection of varieties Raising of Nursery Seed Rate Seed Treatment Management of nursery Preparation of Main field Transplanting Fertilizer Management Weed control Nipping of the tops Harmonal spray Water management

Package of practices for Transplanted redgram Mediyum duration varieties suitable to our area Asha(ICPL 87119) Maruthi(ICPL 8863) Laxmi(ICPL 85063) Surya(MRG 1004) Palem Redgram(PRG 158)etc. Varieties selection Vertisols– 825 gm/acre Alfisols gm/acre Seed Rate

8.3.1: Improve availability of Breeder, foundation and certified seed Transplanted Redgram package practices Trichoderma viridae 4gm/kg Rhizobium 100 gm /kg Seed Treatment

Quick establishment – robust growth at various stages 60 DAT 100 DAT 120 DAT Transplanting in Redgram – Can evade terminal drought stress

One irrigation was provided at transplanting for proper establishment 60 DAT 100 DAT 120 DAT Transplanting in Redgram – Can evade terminal drought stress

Quick establishment – robust growth at various stages 60 DAT 100 DAT 120 DAT Transplanting in Redgram – Can evade terminal drought stress

8.3.1: Improve availability of Breeder, foundation and certified seed Transplanted Redgram package of practices Transplanted Redgram package of practices Grow healthy nursery. Transplanting should be completed within days. use 4’’x6’’ HDPE bags for nursery raising. Fill the nursery packets with correct proportion of soil, Fym and Carbendazim For rainfed crop the transplanting must be completed by the end of June. Under irrigated conditions the transplanting should be completed by first week of June. Due to high temperatures of may and June see that the nursery in under the shade. See that the nursery is near the main field. Meet the day today water requirements of the nursery. Nursery management

8.3.1: Improve availability of Breeder, foundation and certified seed Transplanted Redgram package of practices Transplanted Redgram package of practices Soils with out any salinlty problems and with good drainage are most suitable. As redgram is a deep rooted crop the soils must be well ploughed. At one side we have to maintain the nursery at the other side the main field has to be prepared by running the plough deeply which facilitate for easy transplanting. Main field should be get ready by the time the nursery reaches to days. See that the ball of earth should not break at the time of transplanting so that the plant establish in the main field within 2 days Fertilizer management

TREATMENT DETAILS Mainplot: Spacings -4 Sub-plot: Varieties-5 Design: Split-plot Replications: 3 Soils : Vertisols with PH: 7.8 Av Nitrogen : Low Phosphoru: medium Potassium: Medium

Treatments Plant height (cm) Primary branches Second ary branche s Number of pods Stem girth (cm) 100 seed weight (gm) A) Main plots – 4 Spacings S X 60 cm S x 90 cm S x 120cm S X 120cm Sem C.D. (p=0.05)NS NS C. V (%) B) Sub-plots – 5 Genotypes G 1 - Aasha G 2 - PRG G 3 - Maruthi G 4 - Laxmi G 5 – MRG Sem C.D (p=0.05) NS C. V (%) Interaction (A X B) Sem C.D (p=0.05)24.2NS 1.23NS C.V (%) Table : Effect of spacing and genotypes on growth of Transplanted Redgram ( & pooled data)

Treatments Seed yield (Kg/ha) Dry matter Kg/ha Harvest index Gross returns Net returns B:C ratio A) Main plots – 4 Spacings S X 60 cm S x 90 cm S x 120 cm S X 120 cm Sem C.D. (p=0.05) C. V (%) B) Sub-plots – 5 Genotypes G 1 - Aasha G 2 - PRG G 3 - Maruthi G 4 - Laxmi G 5 – MRG Sem C.D (p=0.05) C. V (%) Interaction (A X B) Sem C.D (p=0.05)NS C.V (%)-- Table : Effect of spacing and genotypes on yield and Economics of Transplanted Redgram (pooled)

Quick establishment – robust growth at various stages 60 DAT 100 DAT 120 DAT Transplanting in Redgram – Can evade terminal drought stress

ICPL 87119PRG - 158MRG ICPL-8863ICPL Stem girth after harvest

VISIT OF Dr. Emmanuel, ICRISAT Visiting Scientist

Training to Farmers

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