1 播种及秧田管理
1.1 种子处理
1.2 播种育苗
1.3 秧床管理
1.4 适龄移栽
2 大田管理
2.1 水浆管理
2.2 科学施肥
2.3 病虫草害综合防治
2.3.1 杂草防除
唑酰草胺EC和1.5 L/hm2 10%氰氟草酯EC喷施防除;对于阔叶及莎草科杂草,选用0.75 L/hm2 3%氯氟吡啶酯EC或3.0 L/hm2 48%灭草松AS,对水450 kg/hm2均匀喷施防除。提前将施药田块田水排干,药后24~48 h复水,并保持浅水层(3~5 cm)5~7 d[9]。
Anhui Agricultural Science Bulletin >
2025 , Vol. 31 >Issue 19: 1 - 4
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2025.19.001
High yield cultivation techniques of hybrid rice Chunyou 83 with carpet seedlings and mechanical transplanting in Jianghuai region
Received date: 2025-02-05
Online published: 2025-10-14
Chunyou 83 is a three-line hybrid rice variety systematically bred using Chunjiang 88A as the female parent and T27 as the male parent. The high yield cultivation techniques for carpet seedlings and mechanical transplanting of this variety used in the Jianghuai region were summarized, covering aspects from sowing and seedling management to field management. During the seedling stage, seed disinfection was carried out using agents such as prochloraz, and dry management of carpet seedlings sown by mechanical sowing was adopted to cultivate robust, well-rooted seedlings of suitable age (≤25 days). In the field stage, water management included shallow and frequent irrigation during the tillering stage. When the number of stems and tillers reached 80% of the target panicle number, intermittent drying was applied multiple times until the field surface became firm. From jointing and booting to heading stages, a shallow water layer was maintained. During the grain-filling stage, alternating dry and wet irrigation was adopted, and water was cut off 7 days before harvest. Fertilization followed the principle of “promoting early growth, controlling mid-growth, and supplementing late growth”. Base fertilizer consisted of formula fertilizer, silicon fertilizer, and zinc fertilizer. During the tillering stage, urea and compound fertilizer were applied in two separate topdressings. At the jointing stage and young panicle differentiation stage, flower-promoting fertilizer and flower-preserving fertilizer were applied, respectively. After full heading, potassium dihydrogen phosphate was sprayed on the leaves. For weed control, two soil-sealing treatments were applied using herbicides such as butachlor after land preparation and around the time of transplanting. During the mid-growth stage, targeted herbicides were selected based on the weed spectrum for stem and leaf treatment. The control of diseases and pests adheres to the principle of “prevention first, integrated control”, incorporating agricultural measures such as planting trap crops, along with the application of biopesticides and highly efficient, low-toxicity chemical agents for unified prevention and management. This article provides a reference for exploring the high yield potential of Chunyou 83 and further promoting its planting.
ZHOU Bing , CHENG Yu , WU Chenyang , YAO Yong , CHEN Gang . High yield cultivation techniques of hybrid rice Chunyou 83 with carpet seedlings and mechanical transplanting in Jianghuai region[J]. Anhui Agricultural Science Bulletin, 2025 , 31(19) : 1 -4 . DOI: 10.16377/j.cnki.issn1007-7731.2025.19.001
唑酰草胺EC和1.5 L/hm2 10%氰氟草酯EC喷施防除;对于阔叶及莎草科杂草,选用0.75 L/hm2 3%氯氟吡啶酯EC或3.0 L/hm2 48%灭草松AS,对水450 kg/hm2均匀喷施防除。提前将施药田块田水排干,药后24~48 h复水,并保持浅水层(3~5 cm)5~7 d[9]。| [1] |
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