Performance of GNV 1089 rice variety for yield and water productivity under direct seeded rice in Upper Krishna Command Area

Dry direct-seeded rice has been shown to save irrigation water and labor. Nonetheless, irrigation management in dry direct-seeded rice has received very little attention. Here, we examined the potential of different irrigation regimes: aerobic rice (AR), alternate wetting and drying (AWD) and continuous flooding (CF) in dry direct-seeded rice cultivation on two rice cultivars (Pride-1 (hybrid indica) and NB-1 (inbred indica)). Growth, yield attributes, grain yield, total water input, water productivity and benefit cost ratio were measured. Our results showed that AR saved 11.22 and 28.40%, and 5.72 and 32.98% water compared with AWD and CF during 2018 and 2020, respectively. There was a significant difference in grain yield among treatments and cultivars. AWD and CF produced statistically same total dry weight and grain yield, while AR reduced the total dry weight by 31.34% and 38.04% and grain yield by 34.82% and 38.16% in comparison to AWD and CF, respectively, across the years. Except for 1000-grain weight and harvest index in AWD and CF, further differences in total dry weight and grain yield among irrigation treatments were primarily correlated with variations in yield attributes. Among the cultivars, hybrid rice performed better than inbred rice. Over the two-year period, hybrid rice increased total dry weight, grain yield, and water productivity by 9.28%, 13.05%, and 14.28%, respectively, as compared to inbred rice. Regarding water productivity (WP), the maximum percentage (40.90 and 26.53%) was recorded for AWD compared to AR and CF. Among cultivars, more water productivity (14.28%) was calculated for hybrid rice than inbred one. Chlorophyll and carotenoid contents, leaf area index and crop growth rate contributed to higher grain yield of hybrid rice under AWD and CF. In contrast to WP, the maximum benefit cost ratio was estimated to be higher for CF than that of AR and AWD. For the cultivars, the maximum value (2.26 in 2018 and 2.32 in 2020) was calculated for hybrid rice compared with the inbred one. In conclusion, these results suggests that AWD with maximum WP and CF with maximum BCR could be more efficient approaches than AR. Under CF, hybrid rice cultivars with higher yield and yield-related attributes, WP and BCR performed better.

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Study of the effect of tillage, seed priming and mulching on direct seeded rice variety sukhadhan-5 in mid hills of Nepal

Azarian Journal of Agriculture ◽

10.29252/azarinj.010 ◽

2019 ◽

Vol 6 (3) ◽

pp. 74-79

Author(s):

Manisha Deo ◽

Monika Chaudhary ◽

Bishnu Bilas Adhikari ◽

Bishnu Prasad Kandel

Keyword(s):

Rice Variety ◽

Seed Priming ◽

Direct Seeded

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Effect of Real time nitrogen management on yield attributes of direct seeded rice by using SPAD meter and Greenseeker

10.20944/preprints202106.0047.v1 ◽

2021 ◽

Author(s):

saishree HALLE ◽

SABYASACHI BISWAL ◽

BOYAPATI RAVI TEJA NAIDU ◽

REDDYYAMINI BOMMISETTY

Keyword(s):

Grain Yield ◽

Dry Matter ◽

Block Design ◽

Rice Variety ◽

Threshold Value ◽

Nitrogen Management ◽

Yield Attributes ◽

Randomized Block Design ◽

Direct Seeded ◽

Spad Meter

A field experiment was conducted during Kharif 2018, laid out in Randomized Block Design with three replications having seven treatments viz. N omission (T1), N applied as basal and AT (T2), N as basal, AT and PI (T3), N as basal and top dressing at NDVI threshold of 0.75 (T4), at NDVI threshold of 0.8 (T5), at SPAD threshold of 35.0 (T6) and SPAD threshold of 37.5 (T7) with Rice variety Sahabhagidhan.The study revealed that application of 30 kg N/ha as basal dose and top dressing of 20 kg N/ha twice at 35 and 63 DAS guided by NDVI threshold value of 0.8 (T5) was found to be superior over other treatments with respect to productivity. T5 recorded highest grain yield of 4438 kg/ha which was 17.0% higher than that top dressed at NDVI threshold of 0.75 (T4) and 7.1% higher than that top dressed at SPAD threshold value of 37.5 (T7). In case of SPAD meter, nitrogen top dressed at threshold value of 37.5 (T7) produced grain yield of 4143 kg/ha which was 15.0% higher than T6. T5 produced maximum dry matter of 8678 kg/ha with highest grain yield (4438 kg/ha), straw yield (5092 kg/ha) and harvest index 46.0%.

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Effect of Irrigation Practices on Water Use Its Efficiency and Economic Yield in Rice Varieties

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2020/v39i2030809 ◽

2020 ◽

pp. 67-71

Author(s):

P. Kunjammal ◽

Subbalakshmi Lokanadhan ◽

S. Murali Krishnasamy ◽

D. Jawahar ◽

K. Ganesamurthy

Keyword(s):

Water Use ◽

Water Productivity ◽

Rice Variety ◽

Flood Irrigation ◽

Rice Varieties ◽

Wetting And Drying ◽

Agricultural College ◽

Irrigation Practice ◽

Use Efficiency ◽

Irrigation Practices

A field experiment was carried out at the Agricultural College & Research Institute, Coimbatore in research farm during samba season 2018-2019 to assess the water use and its efficiency in different rice varieties comprising aromatic rice, land races, popular cultivars and recent released variety under modified irrigation practices. The experimental design was a split plot with three replications. The main plots with contionous flooding and modified irrigation practices and sub plots with eight varieties as treatments viz., (S1) Kalanamak, (S2) Jeeragasamba, (S3) Kavuni, (S4) Mappilaisamba, (S5)Improved TNAU White ponni, (S6) Bhavani, (S7) CO 51 and (S8) CO 52. Irrigation practice of alternate wetting and drying, monitoring with field tube registered lower consumption of water (900 mm) with less number of irrigation(14), higher water use efficiency (7.3 kg ha-1mm-1) and water productivity (1682 lit.kg-1) in rice, compared to flood irrigation practices. In Sub plot with different rice varieties viz., aromatic, landraces, popular cultivar and recently released rice variety among these varieties the recent released variety CO52 recorded higher grain yield (6.6 t ha-1), compared to other varieties.

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Prospects of biodrainage to mitigate problems of waterlogging and soil salinity in context of India - A review

Journal of Applied and Natural Science ◽

10.31018/jans.vi.2285 ◽

2020 ◽

Vol 12 (2) ◽

pp. 229-243

Author(s):

P. Masilamani ◽

K. Arulmozhiselvan ◽

A. Alagesan

Keyword(s):

Soil Salinity ◽

Water Productivity ◽

Woody Species ◽

Command Area ◽

Agricultural Lands ◽

Active Growth ◽

Long Run ◽

Canal Command Area ◽

High Skill ◽

Tolerance To Salinity

Major parts of agricultural lands in arid and semi-arid regions of India are affected by soil salinity and waterlogging in canal command area and outside. Waterlogging is caused by a rising water table and poor drainage conditions. Stress due to waterlogging and salinity are serious to plants in all stages from seed germination to active growth and maturity. Unmanaged affected agricultural lands turn into low productive marshlands in the long run. Physical provision of surface or sub-surface drainage structures can rescue in such a situation. Yet, high skill and investment are required in the installation and maintenance of such structures. Alternatively, biodrainage method has been evolved as an effective method recently world over. In biodrainage, plants are raised over a larger area, which can transpire and remove an enormous amount of water from the soil. Plants having adequate adaptive traits and tolerance mechanisms are desirable to mitigate waterlogging and salinity. Biodrainage is suitable in rainfed and irrigated conditions. Planting of right plant species in optimum population and geometry decides the efficiency of biodrainage. Further, combining biodrainage with the conventional drainage can improve land and water productivity. Eucalyptus is the most suitable tree species for biodrainage as it has well performed in versatile environments. It possesses appreciable tolerance to salinity, sodicity and waterlogged conditions of the soil. Fast-growing with a straight trunk, deep rooting ability, low shading effect and high transpiration capacity are promising characteristics of this tree. Prominent woody species like Acacia nilotica, Dalbergia sissoo, Hardwickia binata can also be grown for high profit.

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Increasing and Sustaining Agricultural Productivity through Land Improvement Approach: A Mitigation Measure to Climate Change

Hydro Nepal Journal of Water Energy and Environment ◽

10.3126/hn.v10i0.7117 ◽

2012 ◽

Vol 10 ◽

pp. 66-72

Author(s):

Rishi R.S. Neupane

Keyword(s):

Climate Change ◽

Water Productivity ◽

Irrigation Management ◽

Agricultural Productivity ◽

Irrigated Agriculture ◽

Command Area ◽

Irrigation Canal ◽

Mitigation Measure ◽

Agriculture Development ◽

Land Improvement

Due to greenhouse gas effect temperature around the world will increase (0.06ºC/yr.) resulting in increased evapo-transpiration and increased need of crop irrigation pressurizing ground water resources and its judicious use. An experiment in a deep tubewell area with improved land and irrigation management undertaken in early 1980’s has shown that doubling of agricultural productivity is possible. This system can be taken as mitigative/adaptive measure of climate change.This paper involves experiences of managing tubewell irrigation schemes through improving basically these development parameters in the irrigation command area: Land improvement (land consolidation, rectangular shaping and leveling), Irrigation canal efficiency improvement,Introduction of crop water management, and Evolving Farmers Group into a Co-operative Organization- for managing land collectively. The evaluation has shown that through this intervention approach yields of paddy, wheat, maize and pulse can be doubled in the irrigated areas. This concept might be useful to modify the present policy and program vision of irrigated agriculture development in Nepal through enhancing water productivity a mitigation measure of the effects of climate change. Also, this approach is applicable to surface irrigation schemes of Terai and hills of Nepal.DOI: http://dx.doi.org/10.3126/hn.v10i0.7117 Hydro Nepal Vol.10 January 2012 66-72

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Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation

The Crop Journal ◽

10.1016/j.cj.2018.05.004 ◽

2018 ◽

Vol 6 (5) ◽

pp. 495-508 ◽

Cited By ~ 8

Author(s):

Zhiqin Wang ◽

Daojian Gu ◽

Sarah S. Beebout ◽

Hao Zhang ◽

Lijun Liu ◽

...

Keyword(s):

Grain Yield ◽

Wheat Straw ◽

Water Productivity ◽

Methane Emissions ◽

Irrigation Regime ◽

Direct Seeded ◽

Straw Incorporation

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Influence of Seed Priming on Performance and Water Productivity of Direct Seeded Rice in Alternating Wetting and Drying

Rice Science ◽

10.1016/j.rsci.2015.03.001 ◽

2015 ◽

Vol 22 (4) ◽

pp. 189-196 ◽

Cited By ~ 7

Author(s):

Hafeez Ur Rehman ◽

Muhammad Kamran ◽

Shahzad Maqsood Ahmed Basra ◽

Irfan Afzal ◽

Muhammad Farooq

Keyword(s):

Water Productivity ◽

Seed Priming ◽

Wetting And Drying ◽

Direct Seeded

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Water Saving Irrigation in Rice Cultivation with Particular Reference to Alternate Wetting and Drying Method: An Overview

The Agriculturists ◽

10.3329/agric.v7i1.5591 ◽

2010 ◽

pp. 128-136

Author(s):

MM Husain ◽

M Shahe Alam ◽

MH Kabir ◽

AK Khan ◽

MM Islam

Keyword(s):

Weed Management ◽

Low Cost ◽

Water Productivity ◽

Rice Variety ◽

Water Saving ◽

Wetting And Drying ◽

Alternate Wetting And Drying ◽

Irrigation Practice ◽

Weed Infestation ◽

Irrigation Cost

In the context of global energy crisis and water scarcity, rice production system is undergoing changes with the strategy to produce more rice with lesser amount of water. Water saving technology has therefore, been developed and increasingly adopted to irrigate rice in different countries. Impact of alternate wetting and drying (AWD) irrigation as a water saving technique on rice yield, water productivity and environment has been overviewed in this paper. On-farm trials were conducted during the years 2007 and 2008 to validate the adaptability of AWD method of irrigation in Boro rice-variety BRRI dhan29. The trials were conducted at different locations of Gazipur, in which three farmers plots of rice were irrigated following AWD method, which were then compared with another 3 farmers plots of rice irrigated in conventional method maintaining 3-5 inches of standing water throughout. The trials have revealed that AWD method saved about 365 mm irrigation water (about 27%) over the conventional irrigation practice. However, there was no adverse effect of AWD- irrigation on grain yields of rice. AWD method as perceived by farmers, although reduced irrigation cost, resulted in more weed infestation and was associated with more weeding cost. Following the impressive results of the validation trials, the demonstrations were conducted in the farmers fields of different districts during boro 2009. In general, the demonstrations were successful to impress the farmers about AWD-irrigation as a water saving and low-cost irrigation method. However assurance of timely availability of irrigation is a precondition for farmers to adopt the technique and weed management using appropriate herbicides is necessary for adoption of the technology.

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