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南阳是河南省重要粮棉产区,由于施肥不多,土壤肥力低(耕作层有机质含量为0.6—0.8％,全氮0.05—0.07％),产量水平也低。为了提高地力,寻求增肥增粮的有效途径,近几年来我所曾进行了有关麦田绿肥研究,现将结果整理于后,供作参考。1.几种麦田绿肥的增产效果。通过全区具有代表性的泌阳、内乡、邓县等多点试验示范结果,利用夏炕地麦田在3月上旬套种草木樨和麦收后夏播柽麻、绿豆,8月上旬掩青,增产效果显著,不仅当季小麦增产,而且对后作谷子、大豆还有良好效果。
Nanyang is an important grain and cotton producing area in Henan Province. Due to the small amount of fertilization and low soil fertility (organic content of 0.6-0.8% and total nitrogen of 0.05-0.07% in tillage layer), Nanyang is also low in production. In order to improve soil fertility and seek an effective way to increase grain and increase grain output, I conducted a study on green manure in wheat fields in recent years. The results are compiled for reference. 1. Several kinds of wheat green manure yield. Through the representative demonstrative results of Biyang, Neixiang and Dengxian in the whole region, summer kenaf and mung bean were planted in summer wheat field in early summer in March with the use of summer kang land, , A significant yield increase, not only when the season wheat yield, but also for later millet, soybeans and good results.