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优良的轮作制度,可以做到用地养地相结合,是农作物连年稳产高产的重要条件。“年花年稻,眉开眼笑”,这种水旱轮作经验,在上海郊区源远流长,卓有成效。而为群众所津津乐道。本文拟以有关的田间试验资料为主,结合近年来的调研资料,着重讨论郊区低湿土壤水旱轮作中的生物排水和生物风化作用,即轮旱期间的生物改良问题。本市年雨量约1200毫米,每亩农田每年承受约800吨雨水,约略相当于一年三熟亩
Excellent rotation system, can be used to support the combination of land, crop stability and high yield year after year an important condition. “Years of rice, eye-opening smile,” This rotation and drought experience in the suburbs of Shanghai has a long history, fruitful. And relish for the masses. In this paper, we will mainly focus on the field trial data. Combining the research data in recent years, we focus on the biological drainage and bio-weathering in the subtropical lowland soil and water rotation and rotation, that is, the biological improvement during the rotation. The city’s annual rainfall of about 1200 mm per acre farmland to withstand about 800 tons of rainwater annually, about the equivalent of three acres per year