About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in AJ

  1. Vol. 82 No. 2, p. 290-295
     
    Received: Feb 16, 1989
    Published: Mar, 1990


    * Corresponding author(s):
 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/agronj1990.00021962008200020023x

Plant Density and Nitrogen Fertilizer Effects on Pearl Millet Production in Niger

  1. A. Bationo,
  2. C. B. Christianson  and
  3. W. E. Baethgen
  1. West Africa Div., International Fertilizer Development Center(IFDC), seconded to The Sahelian Cent. Int. Crops Res. Inst. Semi-Arid Tropics, BP 12404, Niamey, Niger

Abstract

Abstract

Pearl millet (Pennisetum glaucum [L.] R. Br) is an important crop in many developing countries in West Africa and provides 80 to 90% of the food requirement for Niger. Farmers plant at a wide range of densities which may affect crop response to fertilizer. Studies were conducted for 3 yrs in a sandy soil in southern Niger to assess the effects of N fertilization (0–60 kg N ha−1) and plant density (5000–40 000 pockets ha−1, three plants per pocket) on millet yield and yield components. The effects of N and density on yield were influenced by midseason rainfall. With low midseason rainfall, highdensity planting reduced yield slightly and N had no effect. With average or above rainfall, N application and high plant density increased millet grain yield four- to fivefold. Nitrogen increased stover production 33% in a dry year and 100% in the wetter year. Plant density significantly affected stover yield only in 1983, a year with high early season rainfall. Increasing plant density tended to increase stover production in all years. Grain weight in 1983 decreased 14% when plant density exceeded 20 000 pockets ha−1. Nitrogen fertilizer doubled the number of heads per pocket at low plant densities when rainfall was normal or above. A plant density of 15 000 to 20 000 pockets ha−1 and N application of 30 kg N ha−1 in two splits achieved good yields in average and wet years, with only a small yield reduction in the drought year.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .