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Objective：To study optimum planting density and sowing depth of Tulipa edulis. 目的：研究光慈菇最佳的人工栽培密度、深度等。
Hole sowing and higher planting density were beneficial to silage maize. 高密度取穴播对提高青贮玉米产量有较好效果。
Plant density have higher effect on ear characters than nitrogen application. 密度比施氮量对果穗穗部性状的影响更大些。
Irrigation status, nitrogenlevel,crop variety and planting density had no influence on A.flavi quantity in soil. 灌溉状况、施氮水平、作物品种和种植密度对土壤中黄曲霉数量没有影响。
Conclusion: Reasonable planting density can improve the output and quality of saff lower crude drug. 结论:合理的种植密度可以提高红花药材的产量和品质。
The planting density showed little impact on sapwood width, while it had highly significant effects on wetwood width. 栽植密度对边材宽度影响不大,而对湿心材宽度影响达极显著水平;
Study on the initial planting density and its adjustment of Pinus sylvestris var. Mongolica Litvin. Artificial forest in the sand land. 沙地樟子松人工林初植密度及其调控研究。
Effect of plant density and fertilizer application on plantain yield in two soils from Colombia with different natural fertility is shown (Table 2). 表2说明了在哥伦比亚的两种不同天然肥力土壤上种植密度及肥料用量对大蕉产量的影响。
The results showed that the greenweight yield of silage maize in higher planting density were higher than low density in the same sowing patterns. 结果表明：相同的播种方式下,高密度下的青体产量大于低密度种植,单株青体产量相对较低；
Cultivar selection and plant density had the greatest effect on increasing corn yields. 品种选择、密度、施肥量、灌溉、害虫防治、收获管理、生长调节剂等。
Reasonable planting density and appropriate allocation of forests is to ensure normal growth, the efficiency of early and effective measures. 合理的造林密度和适宜的配置形式是保证林木正常生长、提早发挥效益的有效措施。
The rate of the disease is directly connected with the plant density and the methods of cultivation. 苗期茎腐病的发病程度与核桃苗的栽植密度和苗圃地的耕作方式有直接关系.
The sclerotium disease was serious when the planting density of the vegetable was too greater and continuous cropping was made in the diseased field. 蔬菜栽植密度过大和病田连作地菌核病发病较重。
Zhang J W, Hu C H, Wang K J, Dong S T, Liu P.Effects of plant density on forage nutritive value of whole plant corn. 张吉旺;胡昌浩;王空军;董树亭;刘鹏.;种植密度对全株玉米饲用营养价值的影响
In order to increase yield of maize, effect of plant density and sowing patterns on yield of silage maize were studied. 为了挖掘青贮玉米的增产潜力,本研究就种植方式和种植密度对青贮玉米产量的影响进行了研究。
The different sowing date, planting density, vine training, and fruit setting node under greenhouse and plastic house were investigated. 为此，笔者在日光温室和塑料大棚中进行了不同播种期、不同栽植密度、不同整枝方式和不同留果节位的对比试验。
Effect of plant density and fertilizer application on plantain yield in two soils from Colombia with different natural fertility is shown( Table2). 表2说明了在哥伦比亚的两种不同天然肥力土壤上种植密度及肥料用量对大蕉产量的影响。
Contents of Ca, Mg, Fe, Cu, Mn and B decreased with plant density decreasing, on the contrary content of ash increases with plant density increasing. 烟叶中Ca、Mg和Fe、Cu、Mn、B的含量都是随密度下降而减少,但灰分含量却是随密度的下降而增大。
Optimum plant density affects the use efficiency of crops production factors. To define it on peanut in Argentina we applied asymptotic model (Eq. 1). 种植密度是影响作物生产效率的关键因素之一,因此将渐近模型(方程1)应用到阿根廷的花生种植密度决策中。
Experiments on different sowing dates，planting density and fertilizer proportion of wheat were done in the South and North part of Huaihe River in Jiangsu Province. 在江苏省淮南、淮北地区设置小麦不同播种期、密度及肥料比例试验，研究小麦高产群体叶面积的质量特征。