【摘 要】
：
影响地膜棉增产的原因及对策郭连柱，庞彤，魏海华山东阳谷县棉办２５２３００１９９４年对两个乡镇６户的地膜棉进行了测产调查，每公顷产量为１３８０公斤，霜前花率９２％，比直播棉每公顷增产３３０公斤，霜前花率高１７％，品级高０．５级，公顷
论文部分内容阅读
影响地膜棉增产的原因及对策郭连柱，庞彤，魏海华山东阳谷县棉办２５２３００１９９４年对两个乡镇６户的地膜棉进行了测产调查，每公顷产量为１３８０公斤，霜前花率９２％，比直播棉每公顷增产３３０公斤，霜前花率高１７％，品级高０．５级，公顷纯收益３５０３．４元...
The causes and countermeasures of increasing cotton mulching cotton production Guo Lizhu, Pang Tong, Wei Haihua Shandong Yanggu Cotton Moutain 252300 In 1994, the survey of cotton mulching in 6 households in two townships was conducted. The yield per hectare was 1380 kg and the pre-frost flower rate was 92 %, 330 kg more than direct broadcast cotton per hectare, frost bloom rate of 17%, grade 0.5, hectare net income 3503.4 yuan ...
其他文献
低温胁迫是制约茶树生长的主要限制因子之一。尤其是北方荼区冬季寒冷干燥，低温持续时间长，给茶叶生产带来很大危害。本研究以幼龄茶树为对象，设计了不同防护措施处理，通过研究与
高产优质抗病棉花新品种──鄂抗棉３号鄂抗棉３号高产、优质、抗病性好、熟期适宜、株型好、抗逆性强。１９９５年由湖北省品种审定委员会审定命名。１９９５年参加国家棉花品种黄河流域区试及长
The transformation rate of three different strains of silkworm Bombyx mori was compared after the introduction of enhanced green fluorescence protein (EGFP)-enc
滨海盐土地膜棉雨后适期早播初探成桂方，王能华，周金堂，张华达，黄菊英江苏省海门市东兴乡农技站朱秀良，乌松康，黄颂禹，韩芒雄，许福涛海门市农业局２２６１００１雨后适期早播能有效地抑制表土盐分聚
锦橙(Citrus sinensis Osbeck cv Jin Cheng)是芸香科柑橘属甜橙类植物中的优良变异品种,其成熟果实中蕴含大量酚类物质。酚类物质因其具有生物活性而对人体的抗氧化、消炎、
韭菜(AlliumtuberosumRottl.exSpreng.)是我国重要的蔬菜品种之一，由于韭蛆的危害致使农民大量使用农药，韭菜中农药残留超标现象严重，对人们的身心健康构成了威胁，并对作物的生理
Constitutively activated signal transducer and activator of transcription 3 (STAT3) plays an important role in the formation of many tumors including ovarian ca
杂交玉米制种高产技术昆明市西山区种子公司岳文华西山区的杂交玉米种子，过去主要靠省内外调进，１９９０年以后靠自己制种，１９９０年制种１７８．３８亩，平均亩产３２９．５７千克，１９９１年制种２１０．５６亩，平均亩产３９２．８７千克，１９９２年制种１７３．...
Hybrid
Bacterial endotoxin lipopolysaccharide (LPS) often results in multiple organ failure. However,pre-exposure of mice to a sublethal dose of LPS renders the animal
T helper cell type 1 (Th1) and 2 (Th2) play central roles in immune regulation. To identify the novel genes differentially expressed between Th1 and Th2 cells,