摘要
为探明"十一五"期间南疆高产棉田土壤养分现状,以巴州典型高产棉田为研究对象,对籽棉产量在6750～7500kg/hm2的棉田进行连续2年的定点取样,测试分析大、中、微量元素含量。结果表明,48.33%的样品全氮含量属低水平;63.33%的样品碱解氮含量属中等水平;46.67%的样品有效磷含量属中等水平;61.67%的样品的有效钾含量属低水平;100%的样品交换性钙、交换性镁、有效硫属于极高水平;81.48%的样品的有效硼含量属中等水平;88.88%的样品有效铜含量属中等水平;77.78%的样品有效铁含量属于低水平;92.59%的样品有效锌含量属于低水平。要在"十二五"期间保持棉花高产优质,生产中要重视钾肥的使用,同时要保证有机肥充足施用,合理配施氮磷肥,微量元素中要重视锌肥、铁肥施用,对硼肥、铜肥根据棉花长势适量配施。
In order to investigate the soil nutrients of high-yielding cotton in Southern Xinjiang during the“Eleventh Five-year Plan”, typical high-yield cotton in Bavaria for the study, fixed sampling in the seed cotton yield in 6750-7500 kg/hm2 of the cotton fields with two consecutive years. The results showed that, 48.33% of the sample total nitrogen content was low level; 63.33% of the sample alkali-hydro nitrogen content was medium level; 46.67% of the sample effective phosphorus was medium level; 61.67% of the sample of the effective potassium content was low level; 100% of the sample commutativity calcium, exchangeable magnesium, effective sulfur belong to high level; 81.48% of the sample of the effective boron content was medium level; 88.88% of the sample effective copper content was medium level; 77.78% of the sample effective iron content belonged to low level; 92.59% of the sample effective zinc content belonged to low level. In “Twelve Five-year Plan”, keep cotton plateau, production, we should pay attention to the use of potash fertilizer, and at the same time, to ensure the adequate use of organic fertilizer, reasonable fertilizer nitrogen phosphate fertilizer, trace element must take seriously to zinc fertilizer, iron fertilizer application, the boron fertilizer, copper fertilizer according to cotton growing moderate fertilizer.
出处
《中国农学通报》
CSCD
2012年第36期212-218,共7页
Chinese Agricultural Science Bulletin
基金
公益性行业(农业)科研专项"西北干旱半干旱平原区污染监测与氮磷化肥投入阈值研究"(201003014-5)
自治区"十二五"科技支撑计划项目"亩产籽棉600公斤高产高效技术研究与示范"
新疆"十一五"重大专项"棉田水肥高效利用调控技术"(200731133-2)
关键词
南疆
高产棉田
土壤养分
现状
Southern Xinjiang
high-yield cotton field
soil nutrient
actuality
