A Critical Review on Nitrogen Management in Speciality Corn under Pongamia + Maize Agri-silvi System
نویسندگان
چکیده
Intercropping of agricultural crops with woody species is an age-old practice in traditional farming systems in the tropics. Food production is the major aim of subsistence farmers with most of their farmland being allocated to food crops rather than to trees and shrubs. Due to increasing population and scarcity of productive lands that cannot sustain intensive exploitation, one method that has been proposed to enhance the sustainability of agricultural production is the growing of trees in association with crops. Alley cropping is an agroforestry system in which food crops are grown in alleys formed by hedge rows of trees or shrubs and these hedge rows are kept pruned during the rainy season. The hedge rows are usually cut to a height of about 2 m when crops are sown and kept pruned to reduce competition with crops. Work done on alley cropping in Pongamia pinnata was less in India and other countries. Hence literature pertaining to tree crop competition studies in agri-silvi system was presented in this chapter. Moreover, it was unable to get sizeable literature related to speciality corn. In view of the paucity of adequate literature related to speciality corn, few citations with respect to grain corn were also presented in brief to know the general scientific idea. The available literature related to the present study has been reviewed under the following heads. 1 Tree crop competition studies in agri-silviculture system. 2 Performance of arable crops in alley cropping system. 3 Performance of speciality corn under the influence of graded nitrogen levels. 4 Economic studies in agri-silviculture system.
منابع مشابه
Corn production and plant characteristics response to N fertilization management in dry-land conventional tillage system
Nitrogen (N) application management needs to be refined for low yielding environments under dryland conditions. This 3-yr study examined nitrogen fertilization management effects on corn (Zea mays L.) plant characteristics and grain yield in rain fed environment under conventional tillage system. Nitrogen fertilization management consisted of two timing methods of N application [all N at planti...
متن کاملEffect of nitrogen consumption management on morphophysiological traits, yield and yield components of corn hybrids (Zea mays L.)
In order to investigate the effect of nitrogen management on morphophysiological traits, yield and yield components of corn hybrids, the present experiment was carried out in a split plots arrangement in a randomized complete blocks design with three replications in a field located in Ahvaz city during the crop year 2016-2017. Experimental treatments consisted of nitrogen fertilizer management ...
متن کاملEvaluation of Different Levels of Nitrogen Fertilizer on Agronomic Traits of Corn (Zea mays L.) Genotypes
Corn production management including nitrogen consumption will be different at different circumstances. In order to investigate the effect of different levels of nitrogen fertilizer on yield and yield components of seed corn hybrids in Khuzestan weather conditions, this research was carried out in the summer of 2013 in the lands of Safi Abad Agriculture and Natural Resources Research Center-Dez...
متن کاملResponse of Seed yield, Its Components and Chlorophyll Content of Corn to Integrated Effect of Nitrogen Fertilizer and Vermicompost under Different Irrigation Round
BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and to increase crop productivity. Improve saving water in irrigated agriculture and thereby improving water use efficiency is of paramount importance in water-scarce regions. OBJECTIVES: This study was conducted to assessment effect of different levels of irrigation re...
متن کاملStimulated fine root growth benefits maize nutrient uptake under optimized nitrogen management
Optimized nitrogen (N) management reduces total N application without sacrificing cropyield. However, the underlining mechanisms have not been well investigated, especially lackingthe evidence from roots. Here we performed a two-year field experiment with maize grownunder zero-N, conventional N and optimized N applications and examined grain yield, N,phosphorous (P) and potassium (K) uptake and...
متن کامل