A Study on Defoliation Rate of Artemisia sphaerocephala Population Sown by Aircraft in Alashan Desert

阿拉善飞播区白沙蒿利用率的研究

Influence of Soil Water Status and Defoliation on Carbohydrate Content as Well as Shoot Formation in Pear Trees

不同时期的干旱处理及除叶对梨树碳水化合物含量及枝梢形成之影响

After the removal of impurities, it is necessary to remove the excess oxygen remaining in the metal. Defoliation is achieved by adding elements which have a greater affinity than iron for oxygen. The added elements form oxides which are insoluble in iron, and are removed into slag.

除去杂质后，还必须除去钢水中过剩的氧。脱氧是加进同氧的亲和力比铁更大的元素来实现的。这些元素生成不溶于钢水的氧化物，因此进入炉渣。

Temporal Variation of Water-Soluble Carbohydrate in the Rhizome Clonal Grass Leymus Chinensis in Response to Defoliation

根茎克隆植物羊草体内可溶性碳水化合物的时间变异及其对去叶干扰的响应

Effects of Environmental Factors on the Progress of Defoliation Dormancy and Flowering of late-ripening Cultivar of Prunus persica

环境因素对晚熟桃落叶休眠与开花进程的影响

Influence of Paraquat and Defoliation on Maturity, Yield and Quality of Soybeans

落叶剂与剪叶处理对于大豆成熟期、产量及质量之影响

Studies on Relations between Coldhardiness and Morphological Characters after Fall Defoliation of Different Alfalfa Cultivars

苜蓿秋季刈割后再生形态指标与其抗寒性关系的研究

Effects of Fertilization, Defoliation and Soil Compaction on Arbuscular Mycorrhizal Colonization of Orchardgrass

施肥、刈割和土壤镇压对鸭茅丛枝菌根形成的影响

Effect of Defoliation Frequency on the Growing Characteristics and Yield of Pennisetum americanum×P. purpureum

刈割频率对杂交狼尾草生长和产量的影响

A preliminary study on the effects of defoliation intensity on Calligonum alachanicum

不同啃食强度对沙拐枣影响的初步研究

Effect of nitrogen fertilizer application and defoliation intervals on root vigour and crude protein in hybrid Pennisetum

氮肥水平和刈割间隔对杂交狼尾草根系活力和粗蛋白含量的影响

Defoliation difference in some commercial crosses of sugarcane

甘蔗常用杂交组合的剥叶性能差异

layers of sands containing deadwood and defoliation of Tamarix ramasissima were mixed accumulations of these two formers.

含红柳枯枝落叶的沙层则是兼有前两者成分的混合堆积。

Hierarchical responses to grazing defoliation in a clonal plant Kobresia humilis

克隆植物矮嵩草对放牧的等级性反应

Physiological Bases of Chemical Accelerated Boll Maturation and Defoliation in Cotton

棉花化学催熟与脱叶的生理基础

Occurrence and Biological Control on Apple Early defoliation

苹果早期落叶病的发生规律及生物防治

The study of regularity of apple early defoliation disease and its control by fungicide

苹果早期落叶病发病规律与药剂防治研究

Study on content and relation of nutrition element of leaf before defoliation of apple seeding tree

实生苹果树落叶前叶片矿质营养状况及相互关系的研究

A Study on the Effects of Defoliation Rate on Vegetation Quantitative Characters in Leymus chinensis Grassland

刈牧强度对羊草草地植被数量特征影响的研究

defoliation boom

n.除叶喷杆

defoliation stage

n.落叶期

bottom defoliation

n.茎干脱叶

bottim defoliation

n.茎干脱叶

untimely defoliation

n.提前落叶

complete defoliation

n.完全脱叶,全部脱叶

chemical defoliation

n.人工落叶