Studies on spacing, irrigation levels and method on growth and yield of cotton
Research Type
State Trial
Experiment Background
Cotton is the important cash crop in India cultivated on 12.58 m ha area with total production of 6.12 m tons and productivity 486 kg ha-1. Maharashtra, Gujarat, Telangana, Haryana and Rajasthan are the major cotton growing states in India. Gujarat is the leading cotton producer state in India contributes 26.39 per cent (1.62 m tons) in total cotton production with an average productivity of 614 kg ha-1. However, the productivity is greatly influenced by the characteristics of rainfall. As majority of cotton is cultivated under rainfed condition. Irrigating the cotton during post monsoon period could increase the productivity. But water as precious input, required its judicious use for increasing the productivity per drop and it could be possible by standardizing the irrigation schedule as per crop requirement and by adopting the alternate furrow method of irrigation. However, irrigation greatly influenced the vegetative growth and thus space requirement of individual cotton plant. Irrigation promotes the vegetative growth of cotton results in crowding under recommended spacing of rainfed cotton, which promotes the shedding of lower leaves beside competition for resources, cause dropping of squares and immature bolls on lower nodes. Thus its necessary to standardize irrigation schedule and spacing simultaneously for cotton to minimize losses and increased per ha productivity.
Experiment Group
Natural Resource Management
Unit Type
(01)RESEARCH UNIT
Unit
(53)AGRICULTURAL RESEARCH STATION (ACHHALIA)
Department
(287)Agricultural Research Station Achhalia
BudgetHead
(319/12091/03)319/07/REG/02112
Objective
1. To study the effect spacing, irrigation levels and method on growth and yield of cotton.
2. To study the interaction effect of different treatments.
Season
Kharif
Location Unit Type
(01)RESEARCH UNIT
Location Unit
(53)AGRICULTURAL RESEARCH STATION (ACHHALIA)
Location Department
(287)Agricultural Research Station Achhalia
Plot No
01
PI Name
(NAU-EMP-2013-000658)MANGESH RAVINDRA THAKUR
PI Email
mangeshthakur@nau.in
PI Mobile
9638230289
Year of Approval
2021
Commencement Year
2021
Completion Year
2023
Design of Experiment
Split Plot Design
Crop Spacing (cm x cm)
As per treatment
Gross Plot (m x m)
As per treatment
Net Plot (m x m)
6.0 m x 5.4 m
Total Experiment Area (m2)
4589
Plot History Last Three Year
2018- Sorghum
2019- Rice
2020- Pigeonpea
Initial Soil Sample Analysis Report
Particulars
2021-22
2022-23
2023-24
Texture
Clay loam
Clayey
Clayey
pH (1:2.5)
7.08
7.34
7.35
EC(1:2.5) (dS/m)
0.21
0.19
0.18
Organic Carbon (%)
0.35
0.40
0.38
Avail. N (kg/ha)
167.4
173.0
162.0
Avail. P2O5 (kg/ha)
65.8
62.7
64.16
Avail. K2O (kg/ha)
325.7
327.0
315.0
Initial Soil Sample Analysis Report Attachment
Attachment Not Available!
Layout Plan
Layout Plan Attachment
Treatment
I. Main plot treatment
A. Spacing:
S1- 120 cm x 45 cm
S2- 150 cm x 45 cm
S3- 120 cm x 60 cm
S4- 150 cm x 60 cm
II. Sub plot treatment
B. Irrigation levels and method: (Depth of irrigation- 50 mm)
I1- Irrigation at 0.8 IW/CPE in every furrow
I2- Irrigation at 0.8 IW/CPE in alternate furrow
I3- Irrigation at 0.6 IW/CPE in every furrow
I4- Irrigation at 0.6 IW/CPE in alternate furrow
Note:
1. Irrigation was scheduled 15 days after cessation of monsoon.
2. In alternate furrow irrigation method, furrow was changed at each irrigation.
3. Phosphorus was applied as basal and Nitrogen in 6 equal splits as basal and 30, 60, 75, 90 and 105 DAS