豫南地区适宜弱筋小麦轮作的夏季绿肥品种筛选

为筛选出适宜信阳弱筋小麦轮作的夏季绿肥品种，在信阳市平桥区陆庙试验基地选用鲁菁一号、印度柽麻、羊角豆、决明、赤小豆、铜山小绿豆、小槐花园叶绿豆等7个夏季绿肥品种进行小区种植试验。通过对不同绿肥品种生育期、农艺性状及盛花期养分含量等指标进行分析评价。结果表明:鲁菁1号鲜重为31032kg?hm-2，N的养分积累量41.4kg/hm2、P的养分积累量43.3kg/hm2、K的养分积累量8.7kg/hm2，养分积累量最高，是弱筋小麦轮作夏季绿肥的首选品种。

Selection of summer green manure varieties suitable for weak gluten wheat rotation in south henan

In order to screen out summer green manure varieties suitable for Xinyang weak gluten wheat rotation, seven summer green manure varieties, including Lujing No. 1, Tamarix indica, Croton bean, Cassia obtusifolia, Chixiaodou, Tongshan small mung bean, Xiaohuai garden leaf mung bean, were selected in the Lumiao experimental base in Pingqiao District, Xinyang City for planting in a plot. The growth period, agronomic characters and nutrient content in flowering period of different green manure varieties were analyzed and evaluated. The results showed that the fresh weight of Lujing 1 was 31032kg ·hm-2, the nutrient accumulation of N was 41.4kg/hm2, P was 43.3kg/hm2, and K was 8.7kg/hm2. The nutrient accumulation was the highest, which was the first choice for weak gluten wheat rotation in summer.