黑龙江省白瓜籽施肥效果研究  

Effect of Fertilization on Yield and Benefit of Seed Pumpkin in Heilongjiang Province

作　　者：佟玉欣[1] 李玉影[1] 刘双全[1] 姬景红[1] 韩光[1] 王伟[1] 李杰[2] 

机构地区：[1]黑龙江省农业科学院土壤肥料与环境资源研究所/黑龙江省土壤环境与植物营养重点实验室,黑龙江哈尔滨150086 [2]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《黑龙江农业科学》2011年第10期29-33,共5页Heilongjiang Agricultural Sciences

基　　金："十一五"国家科技支撑计划资助项目(2008BAD96B02);(2008BADA4B06);国际植物营养研究所资助项目(IPNI)

摘　　要：为了解和掌握白瓜籽需肥规律,筛选出产量最高和效益最好的肥料适宜用量,采用室内化验分析与田间小区试验相结合的方法,对不同施肥量梯度黑龙江省白瓜籽施肥效果进行了研究。结果表明:施肥对白瓜籽生长发育有明显的促进作用。处理N2P2K2与不施肥处理和其它处理相比平方米株数、平方米瓜数最多,单瓜最重。处理N3P2K2蔓长、叶长最长,叶宽最宽。处理N2P2K3单瓜籽数最多,百粒重最重。说明适当提高氮肥用量对增加瓜秧数和促进瓜秧生长起到了积极的作用。平衡施肥可显著提高白瓜籽产量和经济效益。与不施肥处理N0P0K0相比,N2P2K3处理产量最高,N2P2K2处理效益最好。说明,增施钾肥和磷肥可以更大程度地发挥该地区白瓜籽的增产潜力。氮、磷、钾是限制该地区白瓜籽产量提高的养分限制因子。其中氮肥农学效率最高;其次为磷肥和钾肥。In order to understand and master fertilizer-required law of seed pumpkin in Heilongjiang province,screen optimal level of fertilizer use with highest yield and best benefit,the combination method of indoor analysis and field plot experiment were applied to study the effect of different levels of fertilization on seed pumpkin in Heilongjiang.The results showed that fertilization had a significant positive effect on plant growth of seed pumpkin.Compared to other treatments,N2P2K2 treatment had the most square meters number,square meters melon number and single melon weight.N3P2K2 had the longest leaf,longest canes and widest leaf.N2P2K3 had the most seed number of single melon and heaviest 100 kernel weight.It means that increasing the fertilization of N appropriately had a positive effect on number and growth of pumpkin seeds.Yield and profit of seed pumpkin were significantly improved by balanced fertilization.Compared to N0P0K0 treatment,the yield of N2P2K3 treatment was the highest,and the benefit of N2P2K2 treatment was the best.So,increasing P and K fertilizer could improve yield potential of seed pumpkin.The soil nutrient restrictive factors of seed pumpkin were N,P and K.N agronomic efficiency of seed pumpkin was the highest,followed by P and K.

关 键 词：施肥 农学效率 白瓜籽 产量 

分 类 号：S642.1[农业科学—蔬菜学]