尼泊尔中山区不同建稻日期对水稻产量和产量归因特征的响应

B. Chaulagain, T. Karki, Reshama Neupane, R. Bhattarai, P. Gyawaly, Sangita Kaduwal, S. Das
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引用次数: 0

摘要

在2019年和2020年夏季,在国家农学研究中心进行了试验,以了解各种建立方法和日期对水稻性能的影响。试验采用2因子随机完全区(RCB)设计,3个重复,种植面积为12 m2,种植几何间距为25 cm,株间为20 cm。建立方法分别为6月10日、6月26日和7月10日播种稻(SDSR)撒播、水盆移栽和非水盆移栽。24小时浸水的种子发芽48小时,并在水坑中播撒。将22日龄的幼苗移栽在有水坑和未水坑的地块上。施肥推荐剂量:N:P2O5:K2O kg ha-1。SDSR的产量最高,为4.2 Mt ha-1,而水洼移栽的产量为3.4 Mt ha-1。籽粒产量最高的是6月10日(590 Mt ha-1),其次是6月26日(4.0 Mt ha-1)。发芽直接播种水稻成熟早,产量高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Response of Rice Establishment Methods on Different Dates on Yield and Yield Attributing Characteristics of Rice in Mid-hills of Nepal
An experiment was conducted in the summer season of 2019 and 2020 at the National Agronomy Research Centre to find out the response of various establishment methods and dates on the performance of rice. The experiment was carried out in 2 Factorial Randomized Complete Block (RCB) design with 3 replications in an area of 12 m2 and planting geometry of 25 cm between rows and 20 cm between plants.  The establishment methods were Sprouted Direct Seeded Rice (SDSR) broadcasting, puddled transplanting, and unpuddled transplanting at three dates viz. 10th June, 26th June, and 10th July. Twenty four hours water-soaked seeds were allowed to sprouting for 48 hours and broadcasted in a puddled plot. 22 days old seedlings were transplanted in a puddled and unpuddled plots.  Recommended doses of fertilizer @ 100:30:30 N:P2O5:K2O kg  ha-1 was used in the experiment. SDSR produced the highest yield of 4.2 Mt ha-1 compared to puddled transplanting method with 3.4 Mt ha-1. The highest grain yield was recorded on 10th June (5.9 Mt ha-1) followed by 26th June (4.0 Mt ha-1). Sprouted direct seeded rice permitted to mature early and produced the higher grain yield.  
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