灌溉和施肥水平对滴灌条件下需氧水稻生长、产量组成及产量的影响

Q3 Agricultural and Biological Sciences Indian Journal Of Agricultural Research Pub Date : 2023-09-29 DOI:10.18805/ijare.a-6135
Nunavath Umil Singh, K. Vaiyapuri, N. Thavaprakaash, S. Selvakumar, K. Vanitha
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引用次数: 0

摘要

背景:世界上一半以上的人口依赖于在移植条件下种植的水稻。由于全球水危机,灌溉水稻系统不再可持续。因此,采用滴灌和施肥方式栽培好氧水稻,既能满足作物对水分和养分的需求,又能获得最佳产量。方法:于2022年和2023年夏季在哥印拜多泰米尔纳德邦农业大学湿地研究农场进行田间试验,研究滴灌和施肥水平对Co-51品种生长和产量的影响。试验采用随机完全区组设计,共13个处理,重复3次。结果:在不同的处理中,100% PE ~ 30 DAS+150% PE ~ 60 DAS+ 200% PE ~ 90 DAS+ 125% RDF(25%通过NF+75%通过WSF)的滴灌处理显著提高了植株的生长性状,即株高(92.54和95.95 cm);分蘖m-2(469.78和478.42),总干物质产量m-2(988.21和1025.42 g m-2);第1穗粒(107.5粒和114.5粒)的灌浆粒数;穗号1粒(122.6粒和127.1粒)的育性率分别为87.7%和90.1%。在2022年和2023年夏季,穗型1粒(15.1和12.6)、籽粒产量(4316和4446 kg ha-1)和秸秆产量(5528和5775 kg ha-1)分别低于其他品种。
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Impact of Irrigation and Fertigation Levels on Growth, Yield Components and Yield of Aerobic Rice (Oryza sativa L.) under Drip System
Back ground: More than half of the world’s population depends on rice, which is grown in transplanting conditions. Due to the global water crisis, irrigated rice systems are no longer sustainable. Therefore, cultivating aerobic rice with drip irrigation and fertigation meets the crop water and nutrient requirements, results in the optimal yield. Method: A field experiment was conducted during summer 2022 and 2023 at Research Farm of Wetland in Tamil Nadu Agricultural University, Coimbatore, to evaluate the performance of aerobic rice under drip irrigation and fertigation levels on growth and yield of Co-51 variety. The experiment was laid out in randomized complete block design with combination of thirteen treatments, replicated thrice. Results: Among different treatments, drip fertigation @ 100% PE up to 30 DAS+150% PE up to 60 DAS+ 200% PE up to 90 DAS with 125% RDF (25% through NF+75% through WSF) resulted significantly superior growth characters viz., higher plant height (92.54 and 95.95 cm), no. of tiller m-2(469.78 and 478.42), total drymatter production m-2 (988.21 and 1025.42 g m-2), no. of filled grains panicle-1 (107.5 and 114.5), total no. of grains panicle-1 (122.6 and 127.1), fertility percentage (87.7% and 90.1%) and lower no. of ill filled grains panicle-1 (15.1 and 12.6), grain yield (4316 and 4446 kg ha-1) and straw yield (5528 and 5775 kg ha-1) as compared to others, during summer 2022 and 2023, respectively.
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来源期刊
Indian Journal Of Agricultural Research
Indian Journal Of Agricultural Research Agricultural and Biological Sciences-Soil Science
CiteScore
1.00
自引率
0.00%
发文量
143
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