ISSN:0030-7793    

DOI:10.1080/09670877309412778

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

During the present century increasing world demand for forest products has brought about a rapid expansion of even-aged forest plantation estates, requiring the forester to adopt the outlook and techniques of the farmer to an increasing extent, both to maintain yield and protect crops from damage.

ISSN:0030-7793    

DOI:10.1080/09670877309412779

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0030-7793    

DOI:10.1080/09670877309412780

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0030-7793    

DOI:10.1080/09670877309412781

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

Glyphosate 0.2 kg/ha gave complete control ofOrobanche crenatawhen applied six weeks after sowing toVicia fabagrowing in pots. There was no adverse effect on the growth or flowering of the crop. Spraying at four weeks after sowing or repeatedly was not advantageous. Five cultivars of beans responded similarly. Glyphosate also showed promise for the control ofO. aegyptiacain tobacco and tomato. Inoculating bean seed withRhizobiumdid not decrease the incidence ofOrobanche.

ISSN:0030-7793    

DOI:10.1080/09670877309412782

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0030-7793    

DOI:10.1080/09670877309412783

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

A serious outbreak of muskmelon (Cucumis melo L.) downy mildew caused byPseudoperonospora cubensis(Berk. & Curt) Rostow, occurred in the Punjab (India) due to unusual rain showers accompanied by high humidity. Nine different fungicides were evaluated and of these zineb 75% (Dithane Z-78) and copper oxychloride (Blitox 50%) gave reasonable control of the disease.

ISSN:0030-7793    

DOI:10.1080/09670877309412784

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

Results of replicated trials in dry beans and groundnuts showed that weeds could reduce yields by 5–50%. Certain herbicide treatments significantly increased or decreased seed number/pod and 100-seed weight. Two trials, one a maize herbicide trial, studied soil persistence of a number of herbicides. Preliminary experience with glyphosate is summarised and work on the control ofDrymaria cordatais described.

ISSN:0030-7793    

DOI:10.1080/09670877309412785

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

Ergot of maize is one of the more recently described diseases of that crop (Fuenteset al.1964). There are some references to maize ergot in host indices and in other earlier writings, but these are not supported by any original research on the disease or description of symptoms. This paper describes the pathogen, its symptoms and area of infection.

ISSN:0030-7793    

DOI:10.1080/09670877309412786

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0030-7793    

DOI:10.1080/09670877309412787

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor