Rabi高粱(Sorghum bicolour L.)可持续生产的播期研究马哈拉施特拉邦稀缺带气候变化条件下的研究

V. Londhe, V. T. Jadhav, J. Jadhav, V. Amrutsagar
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摘要

田间试验是在拉胡里地区农业研究站Solapur Mahatma Phule Krishi Vidyapeeth的研究农场进行的,为期5年(2016-17至2020-21),题为“拉比高粱可持续生产的播种窗口研究”。马哈拉施特拉邦稀缺带气候变化条件下的研究。为找出rabi季节最适宜高粱播种的气象周,利用4个不同的播窗,研究气象参数与产量的关系。结果由实验得到;结果表明,10月1日至7日播种mw40时,rabi高粱综合产量最高(808.28 kg ha-1),饲料产量最高(1494.11 kg ha-1),总收益最高(26633卢比)。其中,M-35-1的籽粒产量(717.94 kg ha-1)、饲料产量(1559.03 kg ha-1)和总收益(24968卢比)均显著高于其他品种。气象研究表明,高粱作物记录的平均库存量和最大利用效率分别为240 mm和2.7 kg ha-1 mm。土壤养分利用率最高的是S1作物(282 mm),最大利用效率最高的是S3作物(3.5 kg ha-1 mm)。这表明S3播种作物(Chitra Nakshtras)比其他播种日期更有效地利用水分。其中M-35-1品种的平均CUM (266 mm)和MUE (3.1 kg hm -1 mm)最高。S3播种作物生理成熟所需日数和生长度日数较高。在品种中,m35 -1高于毛利和雅休达。在RUE初始值较低的情况下,它会增加到70 DAS(即开花到软面团期的50%),然后在几乎所有播种日期都减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Studies on Sowing Windows for Sustainable Production of Rabi Sorghum (Sorghum bicolour L.) Under Changing Climatic Condition in Scarcity Zone of Maharashtra
The field experiment was conducted at research farm, Zonal Agriculture Research Station, Solapur Mahatma Phule Krishi Vidyapeeth,Rahuri for five years (2016-17 to 2020-21) in rabi on sorghum entitled as “Studies on Sowing windows for Sustainable Production of Rabi Sorghum (Sorghum bicolour L.) Under Changing Climatic Condition in Scarcity Zone of Maharashtra.” to find out most optimum meteorological week for sowing sorghum in rabi season, to study the relationship between meteorological parameters and yield by using four different sowing windows. The results were obtained from the experiment; it was found that rabi sorghum sown at MW 40 (01-07 Oct) produced maximum pooled grain yield (808.28 kg ha-1), fodder (1494.11 kg ha-1) and total monetary returns (Rs. 26633 ha-1). Among the varieties, M-35-1 was produced significantly higher grain yield (717.94 kg ha-1), fodder yield (1559.03 kg ha-1) and total monetary returns (Rs. 24968 ha-1) over the other variety. The meteorological studies showed that the mean CUM and MUE recorded by sorghum crop was 240 mm and 2.7 kg ha-1 mm. The highest CUM was recorded by S1 sown crop (282 mm) however the MUE was recorded by S3 sown crop (3.5 kg ha-1 mm). This indicated that S3 sown crop (Chitra Nakshtras) utilized moisture more efficiently than other dates of sowing. Among the variety M-35-1 recorded maximum mean CUM (266 mm) and MUE (3.1 kg ha-1 mm) than other varieties. The number of days required to attain physiological maturity and growing degree days were higher in S3 sown crop. Among the varieties it is higher in M 35-1 than Mauli and Yashoda. In case of RUE initially values were low, it increases up to 70 DAS (i.e. up to 50 percent flowering to soft dough stage) further it decreases in all most all the sowing dates.
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