| 适于半干旱草场飞施NPZn复(混)配粒肥筛选及其增产效果的研究 |
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| 引用本文： | 杨金,刘扬,李楠,张振凯.适于半干旱草场飞施NPZn复(混)配粒肥筛选及其增产效果的研究[J].吉林农业大学学报,1990(4). |
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| 作者姓名： | 杨金 刘扬 李楠 张振凯 |
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| 作者单位： | 吉林农业大学
(杨金，刘扬，李楠)，前郭草原站(张振凯) |
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| 摘 要： | 连续三年在吉林省白城地区前郭、大安两县草场上,通过NPZn三因素五水平最优回归设计试验,筛选出羊草高产、经济效益显著的NPZn合理用量及比例,然后在长山化肥厂加工成复合粒肥,用于大面积草场飞施作业。结果表明,以尿素、重过磷酸钙.硫酸锌单质混配的粉肥人工施入.适宜的养分用量N为6～8kg/亩,P_2O_5 6～9kg/亩,Zn 0.4kg/亩。其比例为1:1:0.06,可得干草223～295 kg/亩,每公斤粉配肥可增干草 8～13kg.用单质肥料加工造粒的NPZn三元复合肥.飞机作业,每亩施入20～25kg,每公斤复合粒肥增干草10.4kg以上。纯收益5～5.57元,大大提高了工效,是草原现代化施肥的可行措施.
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| 关 键 词： | 半干旱草场 飞施 NPZn复合粒肥 |
THE SCREENING OF AIR APPLYING N-P-Zn GRANLAR FERTILIZER AND ITS EFFECT ON HAY YIELD IN SEMIARID PASTURE LAND |
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| Yang Jin et al.THE SCREENING OF AIR APPLYING N-P-Zn GRANLAR FERTILIZER AND ITS EFFECT ON HAY YIELD IN SEMIARID PASTURE LAND[J].Journal of Jilin Agricultural University,1990(4). |
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| Authors: | Yang Jin |
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| Institution: | Yang Jin et al |
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| Abstract: | The proper applying amount and rate of N-P-Zn fertilizer were selected through a 3-year regression design experiment with 3 factors and 5 levels in pasture land in Qianguo and Da'an counties. With compound fertilizers, the optimum proportion of urea, concentrated superphosphate and ZnSO4 was 1 : 1 :0.06. Then granular fertilizer with single substances of N-P-Zn was prepared proportionally for air-applying. Results showed that the complex granular fertilizer increased hay yield by more than 10.4kg per kg of fertilizer with an applying rate of 25kg/mu. Thus air-applying granular fertilizer is a practical way in modern pasture fertilizing. |
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| Keywords: | semiarid pasture land air-fertilizing N-P-Zn complex granular fertilizer |
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