磷肥对籽瓜产量和效益的影响  

Effect of phosphate fertilizers on yields and profits of edible seed watermelon

作　　者：胡志桥[1] 赖丽芳[2] 郭天文[2] 

机构地区：[1]甘肃省农业科学院土壤肥料和节水农业研究所,兰州730070 [2]甘肃省农业科学院旱地农业研究所,兰州730070

出　　处：《中国瓜菜》2008年第1期7-10,共4页China Cucurbits And Vegetables

基　　金：中加合作PPI/PPIC资助项目(Gansu200201)。

摘　　要：采用田间试验方法研究N、P、K不同配比和P的不同用量对籽瓜经济性状、产量和经济效益的影响。结果表明:N、P2O5和K2O的用量分别为150、150、90kg/hm2,籽瓜的产量、经济性状和经济效益表现最好,比分别不施N、P和K肥的各处理增产25%、33%和5%,除去肥料成本,分别增收1951、2508和234元/hm2;有效提高了单瓜重、单瓜籽粒数和籽粒重,并减少了白籽率;得出在甘肃农垦八一农场小井子分农场限制籽瓜产量单质营养成分的因子是P>N>K,推荐最佳施P量为P2O5150kg/hm2。Field trials were conducted to study the influence of N, P, K fertilizer, and different rate of phosphate application on yields and profits of edible seed watermelon production. The results showed that yields ,profits and economic characteristics of edible seed watermelon were the best when N ,P2O5, K2O were applied at 150 kg/hm2,150 kg/hm2 and 90 kg/hm2,respectively. Compared to control, application of N, P and K increased yields 25%, 33% and 5%, and net profits 234 yuan/hm2 to 2 508 yuardhm2 and 234 yuan/hm2. Fertilization increased fruit weight, seed number per fruit and seed weight, but reduced amount of empty seed in the fruit. The effectiveness of fertilization is P〉N〉K in Xiaojingzi farm of Gansu province. The best rate of phosphate application was P205 150 kg/hm2.

关 键 词：平衡施肥 籽瓜 磷肥 

分 类 号：S651[农业科学—果树学] F326.3[农业科学—园艺学]