Record Details

Effective management of legumes for maximizing biological nitrogen fixation and other benefits

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/3907/
 
Title Effective management of legumes for maximizing biological nitrogen fixation and other benefits
 
Creator Ali, M
Mishra, J P
Ahlawat, I P S
Kumar, R
Chauhan, Y S
 
Subject Food legumes
 
Description The importance of legumes in sustainable crop production systems is well recognized. In the rice and wheat cropping systems of the Indo-Gangetic Plain, several legumes such as chickpea, lentil, pea, soybean, groundnut, mung bean, black gram, cowpea, and pigeonpea are grown depending upon rainfall pattern, water resources, geo-morphological features, domestic needs, and cropping systems. In the rice-wheat sequential cropping, short-duration legumes such as mung bean and cowpea offer great promise, but at present their adoption is negligible due to several management and social constraints. The productivity of legumes in general is low due to low genetic yield potential and sub-optimal management practices. Several studies under the All India Coordinated Pulses Improvement Project (AICPIP) have clearly shown that with better management, the present level of productivity of most of the legumes could be almost doubled. Tillage, planting time, plant population, plant nutrition, irrigation, and weed management considerably influence biological nitrogen fixation and productivity of legumes and therefore their management needs to be optimized for the agroecological regions and production systems. A decrease in nodulation and nitrogenase activity in many legumes has been observed due to late planting, high plant population, drought, excess moisture, high dose of mineral nitrogen, and soil application of herbicides (oxyfluorfen, linuron, oxadiazon, and metribuzin). Enhanced nodulation and higher yield have been reported with timely planting, application of 20-40 kg sulfur ha-1 along with 17.5-26.5 kg phosphorus ha-1, dual inoculation with Rhizobium and vesicular-arbuscular mycorrhizal fungi, irrigation at critical growth stages under moisture stress conditions, and efficient weed management. Deficiency of micronutrients such as zinc, molybdenum, and iron, which impair nodulation and grain yield, have been observed in some of the areas
 
Date 1998
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/3907/1/Effective_management__107-128.pdf
Ali, M and Mishra, J P and Ahlawat, I P S and Kumar, R and Chauhan, Y S (1998) Effective management of legumes for maximizing biological nitrogen fixation and other benefits. In: Residual effects of legumes in rice and wheat cropping systems of the Indo-Gangetic plain: proceedings of the Workshop, 26-28 August 1998, Patancheru, India.