Heilonggang Area which located in the southeast of Hebei province and the northern half of the Huang-Huai-Hai plain is an important part of the Haihe plain.
黑龙港地区位于河北省东南地区,位于黄淮海平原的北半部,是海河平原的重要部分。
The effects of Pear-Wheat inter-cropping with big spacing and several rows on water, yields and land utilization in the Huang-Huai-Hai Plain, were studied in this paper.
对黄淮海平原农区宽带距多行带梨麦间作系统水分效应、产量效应与土地利用效应进行了研究。
Since 1988, the comprehensive management and development on agriculture of Huang-Huai-Hai plain has got initial effects.
1988年以来,黄淮海地区农业综合治理开发已初见成效。
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