摘要
为了使农民增收、农业增产、农产品质量提高,故进行了玉米肥效试验,并建立了贵州省威宁县玉米施肥指标体系。通过试验的实施,综合不同肥力地块得到施氮量:纯氮10.77～20.19kg/667m2;P2O52.48～9.43kg/667m2,K2O6.90～21.70kg/667m2。根据土样测试结果,得到施肥总量为:有机肥1000kg/667m2,纯氮16～18kg/667m2,P2O53.5～4.5kg/667m2,K2O12～13kg/667m2。建立了县域施肥指标体系:①施肥量:有机肥1000kg/667m2,纯氮10.77～20.19kg/667m2,P2O52.48～9.43kg/667m2,K2O6.90～21.70kg/667m2。②施肥品种:优先施用配方肥或复混肥,注重有机肥。③施肥时期及比例:全部有机肥、全部磷肥、40%的氮肥、60%的钾肥作基肥;30%的氮肥作苗肥;30%的氮肥、40%的钾肥作粒肥。④施肥方法:基肥要深施覆土,追肥穴施或喷施。
In order to increase the income of farmers and agricultural production and also improve the quality of agricultural products, corn fertilizer tests were performed, and the fertilization index system of Weining County, Guizhou Province was established. The nitrogen rate of plots with different fertility was as follows： nitrogen 10.77-20.19 kg/667m^2, P2O5 2.48-9.43 kg/667m^2,K2O 6.90~21.70 kg/667m^2. In accordance with the test results of soil samples, the total amount of fertilizer was follows： organic fertilizer 1 000 kg/667m^2, pure nitrogen 16-18 kg/667m^2, P2O5 3.5-4.5 kg/667m^2,K2O 12-13 kg/667m^2. A fertilization index system was established in Weining County.①Fertilizer： organic fertilizer 1 000 kg/667m^2, pure nitrogen 10.77-20.19 kg/667m^2, P2O5 2.48-9.43 kg/667m^2,K2O 6.90- 21.70 kg/667m^2. ②Fertilizer varieties： fertilizer or compound fertilizer was prior to be used, and organic fertilizer was paid attention.③ Fertilization time and proportion： basic fertilizer was composed of 100 % organic fertilizer, 100 % phosphate fertilizer, 40 % nitrogen fertilizer, and 60 % potash fertilizer. Seedling fertilizer was 30 % nitrogen fertilizer. Granular fertilizer was 40 % potash fertilizer.④ Fertilization method： the basal fertilizer should be deeply applied and covered soil. The topdressing should be applied by placement or spraymg.
出处
《畜牧与饲料科学》
2009年第5期37-40,43,共5页
Animal Husbandry and Feed Science
关键词
玉米
肥效试验
施肥指标体系
corn
efficiency test
fertilization index system
