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1983年,我们以花生为指示作物,进行了覆膜栽培试验,探讨覆膜对土壤微生物、花生根瘤菌及产量的影响。一、材料和方法1.试验材料:供试土壤为本院多年未种过花生的试验田.石灰性淡褐土,土质中壤,pH8.3,有机质3.12%,全氮0.090%,全磷0.064%,速效磷12.1ppm。塑膜为0.015毫米无色聚乙烯吹膜.供试品种为中熟大粒花-32.用8B6与1035花生根瘤菌株的混合菌剂球化种子.2.试验方法:用2×2复因子裂区区组设计。主区因素(A)(接菌和不接菌),副区因素(B)(覆膜与露地).分别设3次重复。小区面积0.0207亩.行距1.14尺,穴距0.6尺,每穴双株.4月23日播种,播
In 1983, we used peanut as the indicator crop and carried out the film-mulching cultivation experiment to investigate the effect of mulching on soil microorganisms, rhizobia and yield of peanut. MATERIALS AND METHODS 1. Test material: The test soil was the experimental field for which peanut had not been planted for many years in this hospital.Calcified paleosol, soil medium soil, pH 8.3, organic matter 3.12%, total nitrogen 0.090%, total phosphorus 0.064 %, Available phosphorus 12.1ppm. Plastic film 0.015 mm colorless polyethylene blown film for the test varieties of medium-large grain flower -32 with 8B6 and 1035 mixed strains of peanut rhizobia spore seed 2. Test method: 2 × 2 complex fission District group design. The main factors (A) (inoculation and non-inoculation), sub-district factors (B) (covered with open field), respectively, set three replications. Community area of 0.0207 acres. Row spacing of 1.14 feet, hole distance of 0.6 feet per hole double strain. April 23 planting, broadcasting