【摘 要】
:
1.选用夏播短季棉品种,适时足墒播种。选用中棉16作为当家品种,每年于5月20~30日在小麦行间趁墒点种。种植方式为3—1式或2—1式,行距47~60厘米,
1. Selection of summer sow
论文部分内容阅读
1.选用夏播短季棉品种,适时足墒播种。选用中棉16作为当家品种,每年于5月20~30日在小麦行间趁墒点种。种植方式为3—1式或2—1式,行距47~60厘米,
1. Selection of summer sowing short season cotton varieties, sowing timely enough moisture. Use cotton 16 as the dominant species, annual May 20-30 in the wheat line while planting moisture point species. Planting methods for the 3-1 or 2-1 type, spacing of 47 to 60 cm,
其他文献
受气候变化和新型生产条件影响,长江中游早稻种植面积呈逐年下降的趋势,玉米因省工、高效、高产等优势在南方稻作区种植量逐渐增加,近年来长江中下游出现了以玉米替代水稻的春玉米-晚稻、双季玉米和玉米-油菜等新型种植模式。然而,随着新型种植模式的出现,模式的相关栽培学研究滞后并不能指导生产和新型模式发展,不同种植模式周年产量的形成、资源的分配与利用特征,及其对环境的代价尚不明确。为此,本研究在该区传统双季稻
从凉山彝族传统的蕨芨纹样,分析彝族蕨芨纹盛行的原因,并从其入手对中国传统的涡旋纹进行阐述,并追溯涡旋纹的产生渊源,理清其发展变化过程。
This paper analyzes the reas
An Hα emission measurement array with 25 detection channels has been built on HL-1M tokamak. Reconstruction maps of Hα emission distribution in plasma cross-s
8810—2—2小麦是河北省藁城市农业科学研究所利用波兰小麦和普通小麦杂交衍生系77546做母本、优质麦Z124做父本,通过有性杂交、系谱法选择而成的优质小麦新品系。1991年出
In this paper a technique based on high-speed digital photography and the digital speckle correlation (DSC) method is used for the quantitative measurement of t
A new super-junction lateral double diffused MOSFET (LDMOST) structure is designed with n-type charge compensation layer embedded in the p--substrate near the d
A new approach is developed to the fabrication of high-quality three-dimensional macro-porous copper films. A highly-ordered macroporous copper film is successf
湘油13号湘油13号(原编号224-2)是湖南农业大学油料研究室用湘油1l号作母本,湘油10号作父本杂交后选育而成的甘蓝型早熟油菜新品种。1994年1月通过湖南省农作物品种审定委员会审定命名。湘油13号1991至1993年
Evidence for the long-term optical curve variability and colour behaviour of the BL Lac object Mkn 421 is presented.Our results show that the amplitude of the o
This paper studies the total ionizing dose radiation effects on MOS (metal-oxide-semiconductor) transistors with normal and enclosed gate layout in a standard c