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首页> 外文期刊>Australian Journal of Crop Science >Soil water retention and maize (Zea mays L.) growth as effected by different amounts of Pumice
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Soil water retention and maize (Zea mays L.) growth as effected by different amounts of Pumice

机译：不同数量的浮石对土壤保水率和玉米（Zea mays L.）生长的影响

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Water availability is one of the most important factors influencing plant growth. Water absorbing materials have been reported to be effective tools in increasing water holding capacity. With regard to problems associated with water resources in the Semi-arid areas, laboratory and greenhouse studies were conducted in 2009-2010 to evaluate the absorption of water by pumice and to study the effect of its application on moisture content, and growth properties of maize. The studied growth characteristics including plant height, leaf area index (LAI), stem diameter, 1000-seed weight and grain yield. Under laboratory study, the water absorption value of 1g pumice was measured in 1000 ml beaker and the pumice was weighed after 20, 40, 60, 80, 100, and 120 minutes. Based on the results, water absorption improved with time which ranged from 35-90 times their weight over 20-120 minutes. Different Pumice treatments (0.10, 0.20 and 0.30 %), corresponding to 1.2, 2.4 and 3.6 g kg-1, respectively were applied in a greenhouse experiment. A control treatment (without Pumice) was included. Pumice levels were uniformly mixed with soil and pots were filled with twelve kg of soil mixture. The results showed that pumice significantly (p< 0.05) increased the amount of soil moisture retention compared to control. Growth characteristics of maize (vegetative growth and yield) were significantly improved (p< 0.05) with increasing amount of pumice concentration. Maximum height, LAI, stem diameter, 1000-seed weight and grain yield were obtained with 0.30% pumice application which was followed by 20, and 10%, and control plants, respectively.
机译：水分供应是影响植物生长的最重要因素之一。据报道吸水材料是增加持水能力的有效工具。关于半干旱地区与水资源有关的问题，2009-2010年进行了实验室和温室研究，以评估浮石对水的吸收并研究其对水分，玉米生长特性的影响。 。研究的生长特性包括植物高度，叶面积指数（LAI），茎直径，1000粒重和谷物产量。在实验室研究中，在1000 ml烧杯中测量1 g浮石的吸水值，并在20、40、60、80、100和120分钟后称重浮石。根据结果​​，吸水率随时间的增加而改善，在20-120分钟内是其重量的35-90倍。在温室试验中，分别使用了分别对应于1.2、2.4和3.6 g kg-1的不同的浮石处理剂（0.10％，0.20％和0.30％）。包括对照治疗（无浮石）。将浮石水平与土壤均匀混合，并用十二公斤的土壤混合物装满盆。结果表明，与对照相比，浮石显着（p <0.05）增加了土壤保水量。随着浮石浓度的增加，玉米的生长特性（营养生长和单产）得到显着改善（p <0.05）。施用0.30％的浮石可获得最大高度，LAI，茎直径，1000粒重和谷物产量，其后分别为20％和10％的对照植物。

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