Performance of Ultra High Intensity Rice Based Cropping System Models in Irrigated Sub Tropics of Jammu

Abstract

newline A field experiment entitled Performance of Ultra High Intensity Rice Based Cropping System Models in Irrigated Sub-Tropics of Jammu was conducted at Research Farm, Faculty of Agriculture, SKUAST-Jammu, Main Campus, Chatha for two consecutive years from kharif2019 to summer season of 2021. The soil of the experimental field was sandy loam in texture, slightly alkaline in nature and medium in organic carbon, available nitrogen, phosphorus and potassium with electrical conductivity in the safer range. The experiment consisting of five rice based cropping system models of cropping intensity varying from 300-600% viz. T1: Rice (Basmati-370) Wheat (HD-3086) Cowpea (Lobia Super-60) having 300% cropping intensity, T2: Rice (Basmati-564) Potato (KufriBadshah) Wheat (Raj-3765) Mixed fodder (Maize+Cowpea+Charri in 2:2:1 ratio) having 400% cropping intensity, T3: Rice (SJR-129) Knolkhol (G-40) Potato (KufriSindhuri) Green gram (IPM-02-3) having 400% cropping intensity, T4: Rice (Pusa-1121) Radish (CR-45) Green onion (Nasik Red) French bean (Anupama) Okra (Seli special) having 500% cropping intensity in relay cropping from fourth crop onwards and T5: Rice (IET-1410) Fenugreek (JF-07) Knolkhol (G-40) Green onion (Nasik Red) Dry onion (Selection-1) Black gram (Pant U-19) having 600% cropping intensity in relay cropping from third crop onwards was laid out in a randomized block design with four replications. Crops taken in different cropping system models were raised as per their respective recommended package of cultivation except for the nutrient requirement of all the crops in the systems, excluding pulse and vegetable crops, whose nutrient need were met either through inorganic or organic sources as per recommendations. Of these total requirement of nitrogen, 25% was supplemented through farm yard manure and 75% through inorganic sources. The inorganic sources for nitrogen, phosphorus and potassium were urea, diammonium phosphate and muriate of potash, respectively. newlineThe res