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Author: search.filters.author.Jose MathewStart date: 1980

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Now showing 1 - 10 of 22
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    Effect of leaf area on tuber yield of irrigated tapioca
    (Kerala Agricultural University, 1982) Sushama, P K; Pillai, G R; George, T P; Jose Mathew
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    Performance of groundnut varieties in rice fallows under irrigated conditions
    (Kerala Agricultural University, 1982) Jose Mathew; Thomas, A I; Pillai, G R; Kuruvilla Varghese
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    Studies on the comparative effect of pitcher irrigation and pot watering in cucumber
    (Kerala Agricultural University, 1982) Balakumaran, K N; Jose Mathew; Pillai, G R; Kuruvilla Varghese
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    Response of cassava to irrigation under pure and mixed stands
    (Kerala Agricultural University, 1986) Kuruvilla Varughese; Jose Mathew; Pillai, G R
    Afield experiment was conducted for two consecutive years in the sandy loam soil of the Agronomic Research Station, Chalakudy to study the effect of different irrigation schedules (0.3, 0.6 and 09 IW/CPE ratios) on the growth and yield of cassava under pure and mixed stands (cassava (M 4) alone and cassava intercropped with groundnut (TMV 2), cowpea (V 16), greengram (ML 26), and blackgram (T 9). It was revealed that under shallow water table conditions cassava requires irrigation only at IW/CPE ratio of 0.3 (approximately once in 37 days in the dry period) both under pure and mixed stands. It was also observed that cultivation of intercrops viz., greengram, cowpea, blackgram and groundnut gave additional income from the same piece of land without adversely affecting the yield of cassava.
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    Response of blackgram to different levels of irrigation in summer rice fallows
    (Kerala Agricultural University, 1986) Kuruvilla Varughese; Jose Mathew; Pillai, G R
    Studies conducted at the Agronomic Research Station, Chalakudy revealed that the grain yield of blackgram grown in rice fallows during summer was significantly influenced by water management practices. Irrigating the crop at an IW/CPE of 0.5 was found to be the best. The ratios of 0.75 and 0.5 and bellshaped irrigation recorded 105, 107 and 109 per cent increase in grain yield over no irrigation control. It was also observed that both the varieties tried viz., T9 and Co 2 were on par in all the three seasons.
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    Optimising the irrigation water requirement of cassava
    (Kerala Agricultural University, 1988) Jose Mathew; Kuruvilla Varughese; Pillai, G R; Santhakumari, G
    A two year study was undertaken at the'Agronomic Research Station, Chalakudy during 1982-'83 and 1983-'84 to formulate a suitable water management schedule which optimises the irrigation water requirement of cassava planted during November- December months. Tha trial consisted of 12 irrigation treatments (unirrigated and irrigated at 75 mm and 100mm CPE, through all furrows and alternate furrows and with varying quantities of irrigation water (Recommended (50 mm) and its 3/4 and 1/2 depths) in different combinations. Two treatments having the added advantages of economy in water and labour viz., (i) All furrow irrigation with 1 /2 water (25 mm) at 100 mm CPE and (ii) Alternate furrow irrigation alternatively with 25 mm water at 75 mm CPE were identified, the first schedule approximately requires seven irrigations at an interval of 27 days whereas thjsacond schedule requires nine irrigations at an interval of 20 days.
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    Effect of irrigation and mulching oh the growth and yield of pineapple (Ananas Comosus L.)
    (Kerala Agricultural University, 1988) Kuruvilla Varughese; Pillai, G R; Jose Mathew; Santhakumari, G; Gopi, C S
    A field experiment was conducted in a sandy loam soil of the Agronomic Research Station, Chalakudy, Kerala for four years from 1981 to 1985 to study the response of irrigation and mulching on tha growth and yield of pineapple. Both irrigation and mulching influenced the fruit yield significantly. The study revealed that irrigating pineapple during summer months at 0.6 IW/CPE ratio (5 cm depth of water) and mulching the crop with dry leaves @6000 kg/ha was optimum. It requires fivato six irrigations during the dry months at an interval of 22 days.
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    Response of amorphophallus to irrigation and mulching
    (Kerala Agricultural University, 1988) Jose Mathew; Kuruvilla Varghese; Pillai, G R; Santhakumari, G
    A study was undertaken in the sandy loam soil of the Agronomic Research Station, Chalakudy during 1933-'84 and 1984'85 to know the response of December January planted amorphophallus to irrigation and mulching. Four irrigation (no irrigation and irrigation at 0.3, 0.6 and 0.9 IW/CPE ratios) and four mulching (no mulching and mulching with dried leaves, paddy waste end coir dust) in factorial combinations constituted the treatments. From the results of the study, it was found that amorphophallus planted in December-January has to be irrigated at 0.9 IW/CPE ratio with 50 mm wator through furrows in summer season for higher corm production. It requires about 10 irrigations at an approximate interval of 12 days in non-rainy periods. The study also revealed the importance of mulching with organic waste materials like dried leaves, paddy wasta and coir dust in boosting corm yield in irrigated amorphophallus.
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    Comparative yield potential of cowpea varieties in summer rice fallows under irrigated conditions
    (Kerala Agricultural University, 1983) Jose Mathew; Kuruvilla Varghese; Balakumaran, K N; Thomas, A I
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    Response of groundnut to phosphorus and potassium under different water management practices
    (Kerala Agricultural University, 1983) Jose Mathew; Nair, K P M; Kuriakose, T F
    A field experiment conducted in the sandy loam soil of the Agronomic Research Station, Chalakudy, to study the effect of different irrigation schedules (0.3, 0.6 and 0.9 IW/CPE ratios) and graded doses of phosphorus and potassium 25,50 and 75 kg P205 and K20 per ha respectively) on the growth attributes, yield and yield characters has shown that growth attributes like plant height, number of branches per plant, number of leaves per plant and LAI were favourably influenced by irrigation and application of potassium. Yield characters like number and weight of mature pods per plant, 1 00 pod weight and 1 00 kerne! weight were higher at higher levels of irrigation, phosphorus and potassium. Highest yield was recorded when irrigations were scheduled at 0 9 IW/CPE ratio (irrigating once in 12 days) and 50 kg P205 and 75 kg KaO per ha was found to be sufficient for better yields.