| 摘要: |
| 前言华北稻区由于水源所限,种稻面积不能扩大。长期以来人民对稻米的需求得不到满足。但是华北地区降雨比较集中,若能充分利用雨季自然降水,进行稻的超短期旱栽培,就可为稻田的扩大和提高复种指数开辟一条新的途径。针对这一日标,北京农业大学农学系选育了极早熟陆稻新品种秦爱,它可以在北方冬麦区进行麦茬直播旱栽培。近几年来,在京津地区和河北省进行多点试种,深受农民欢迎。为使这一栽培方式尽快建立,成为一种有效的种植制度,在品种试种同时,在1980年确 |
| 关键词: 栽培方式 叶面积 陆稻 穗分化期 短期 自然降水 种植制度 干物质生产 华北地区 新品种 |
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| Abstract: |
| As the rice area in North China is limited by water resources and the yearly precipitation always concentrates in summer season,so to grow the supershort-term upland rice opens a new way to increase multiple cropping acreage and develop the rice area by fully utilizing the precipitation in rainy season.In order to reach this objective,a new supershort-term upland rice variety Qinai was breeded out by the Department of Agronomy,Beijing Agricultural University and a series of cultivation experiments were cond... |
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