Zobrazeno 1 - 10
of 39
pro vyhledávání: '"R. J. Buresh"'
Publikováno v:
Geoderma. 101:87-103
We investigated the influence of soil charge properties on the distribution of inorganic soil N in maize ( Zea mays ) fields on smallholder farms in the subhumid highlands of Kenya. There was little or no fertilizer use in these subsistence farming s
Publikováno v:
Biology and Fertility of Soils. 31:348-355
We hypothesized that the integration of trees and shrubs in agricultural landscapes can reduce NO3– leaching and increase utilization of subsoil N. A field survey was conducted on 14 farms on acid soils in the subhumid highlands of Kenya, where the
Publikováno v:
Agroforestry Systems. 47:163-196
The regeneration of natural vegetation (fallowing) is a traditional practice for restoring fertility of agricultural land in many parts in the tropics. As a result of increasing human population and insufficient fertilizer inputs, the ecosystem ferti
Autor:
R. J. Buresh, P. J. M. Cooper
Publikováno v:
Agroforestry Systems. 47:345-356
This paper summarizes the reports submitted by working groups who met during the International Symposium on the Science and Practice of Short-term Improved Fallows held in Lilongwe, Malawi from 11–15 March 1997. The four working groups focused thei
Autor:
G. Tian, R. J. Buresh
Publikováno v:
Agroforestry Systems. 38:51-76
Trees can influence both the supply and availability of nutrients in the soil. Trees increase the supply of nutrients within the rooting zone of crops through (1) input of N by biological N2 fixation, (2) retrieval of nutrients from below the rooting
Autor:
Tran Thuc Son, R. J. Buresh
Publikováno v:
Fertilizer Research. 39:199-203
Farmyard manure (FYM) applied to rice-growing soils can substitute for industrial fertilizers, but little is known about the influence of FYM on the effectiveness and optimal management for industrial N fertilizers. A field experiment was conducted i
Publikováno v:
Plant and Soil. 157:197-206
Erratic rainfall in rainfed lowlands and inadequate water supply in irrigated lowlands can results in alternate soil drying and flooding during a rice (Oryza sativa L.) cropping period. Effects of alternate soil drying and flooding on N loss by nitri
Autor:
R. J. Buresh, C. A. Baanante
Publikováno v:
Agronomy Journal. 85:947-954
Many modifications to urea such as inhibitors, algicides, soluble salts, and acidifying agents have been proposed to overcome losses of urea-N, but little is known about the potential economic benefits and acceptable farm-level prices for modified ur
Publikováno v:
Soil Biology and Biochemistry. 25:843-848
The recovery of 15 N-labeled N 2 and N 2 O evolved from added 15 N-labeled fertilizers can reportedly underestimate N loss by denitrification in puddled, flooded soils. Field research was conducted for 2 yr in the Philippines to determine whether the
Publikováno v:
Plant and Soil. 141:69-91