Effect of nitrogen rates, mulching and antitranspirants on water use and water use efficiency of barley (Hordeum vulgare L.) varieties grown under dryland conditions

1979 ◽  
Vol 92 (2) ◽  
pp. 263-268 ◽  
Author(s):  
S. K. Agarwal ◽  
Rajat De
Keyword(s):  
Water Use ◽  
Field Experiments ◽  
Agricultural Research ◽  
Foliar Application ◽  
Indian Agricultural Research Institute ◽  
New Delhi ◽  
Hordeum Vulgare L ◽  
Straw Mulch ◽  
Natural Rainfall ◽  
Nitrogen Rates

SummaryField experiments were made under natural rainfall during the winter seasons of 1972–3 and 1973–4 at the Indian Agricultural Research Institute, New Delhi, to study the soil water use by barley varieties as influenced by nitrogen rates, mulching and foliar application of antitranspirants. Both Ratna and Vijaya varieties of barley had similar efficiency of water use.Total water use was not much different for various treatments but straw mulch and kaolin decreased evapotranspiration at tillering and pre-flowering stages enabling the plants to use more water at critical stages of grain formation. Application of nitrogen, straw mulch and a foliar coating of kaolin increased the efficiency of water use.

Weed management in sorghum-legume intercropping systems

1984 ◽  
Vol 103 (1) ◽  
pp. 103-115 ◽  
Author(s):  
C. T. Abraham ◽  
S. P. Singh
Keyword(s):  
Nutrient Uptake ◽  
Weed Management ◽  
Field Experiments ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
Growth Yield ◽  
New Delhi ◽  
Maximum Increase ◽  
Hand Weeding ◽  
Control Application

SummaryThe field experiments were conducted at the Indian Agricultural Research Institute, New Delhi in summer-rainy seasons of 1980 and 1981 to study the effect of different sorghum-legume intercropping systems and weed control methods on growth, yield and nutrient uptake by different crops and on weeds. The intercropping of legumes increased growth, uptake of N, P and K and yield of sorghum compared with sole sorghum. However, maximum increase was obtained when it was grown in association with fodder cow pea. All intercrops smothered the weeds but maximum suppression was by fodder cow pea. The total uptake of nutrients (N, P and K) was also greater in intercropping systems. Pre-emergence application of fluchloralin at 0·5 kg/ha was most effective in all intercropping systems followed by nitrofen at 1·0 kg/ha. Hand weeding and fluchloralin application also led to higher nutrient uptake by sorghum and the whole system than the unweeded control. Application of fluchloralin and nitrofen controlled most of the weeds and reduced nutrient removal compared with the control but was less effective than hand weeding.

Modification of water balance of dryland wheat through the use of chlormequat chloride

1982 ◽  
Vol 98 (3) ◽  
pp. 593-597 ◽  
Author(s):  
R. De ◽  
G. Giri ◽  
G. Saran ◽  
R. K. Singh ◽  
G. S. Chaturvedi
Keyword(s):  
Agricultural Research ◽  
Foliar Application ◽  
Indian Agricultural Research Institute ◽  
Field Trials ◽  
Stomatal Resistance ◽  
New Delhi ◽  
Dry Period ◽  
Chlormequat Chloride ◽  
Use Efficiency ◽  
Better Than

SUMMARYIn field trials made for two years in the dry period of a semi-arid tract under natural precipitation at the Indian Agricultural Research Institute, New Delhi, overnight seed-soaking of wheat in 0·5% solution of 2-chloro-ethyl-trimethyl ammonium chloride (CCC) prior to sowing increased the grain yield. When treated with foliar application of the chemical in concentrations ranging between 40 and 1000 mg/1, wheat plots yielded better than did the untreated control, but no consistency was noted between the concentrations or stages of their application. The benefit from CCC was due to more root growth, increased stomatal resistance and higher leaf water potential. Treated plants extracted more water from deeper soil layers, increasing their water-use efficiency.

Crop compatibility and spatial arrangement in sorghum-based intercropping systems

1982 ◽  
Vol 99 (3) ◽  
pp. 621-629 ◽  
Author(s):  
A. B. Waghmare ◽  
T. K. Krishnan ◽  
S. P. Singh
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
Spatial Arrangement ◽  
Soya Bean ◽  
New Delhi ◽  
Agricultural Research Institute ◽  
Research Institute

SUMMARYField experiments on crop compatibility and spatial arrangements in sorghum were conducted at the Indian Agricultural Research Institute, New Delhi in irrigated conditions in 1976 and 1978. Grain yield of sorghum increased when grown in association with the legumes greengram, groundnut, grain and fodder cow peas and soya bean, compared with sole sorghum. Planting of sorghum in paired rows (30:90 cm) with two rows of intercrop in the 90 cm space produced maximum yields of sorghum and intercrops.

scholarly journals Effect of Residue Management on Yield and Economics of Pearlmillet Based Cropping Systems under Rainfed Conditions

2019 ◽  
pp. 1-4
Author(s):  
Raj Singh ◽  
V. K. Singh ◽  
Y. P. Singh ◽  
A. Sarker
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Cropping Systems ◽  
Indian Agricultural Research Institute ◽  
Conventional Tillage ◽  
Residue Management ◽  
New Delhi ◽  
Rainfed Condition ◽  
Net Returns ◽  
Rainfed Conditions

This study was aimed to investigate the effects of residue management on yield and economics of pearlmillet based cropping systems in rainfed condition at Indian Agricultural research Institute, New Delhi. Field experiments were conducted during kharif and rabi seasons of 2017-18 and 2018-19 using the pearlmillet variety ‘Pusa Composite 443. The application of residue as mulch resulted in 16.94 and 8.97% increase in CEY over conventional tillage and residue as standing retention, respectively. Highest net returns of Rs. 56537/ha was obtained with Pearlmillet-chickpea cropping systems followed by Rs. 42429/ha with pearlmillet-barley. Pearlmillet-chickpea cropping systems was observed more productive, remunerative and resource efficient cropping systems in rainfed conditions. 

Effects of dicyandiamide (DCD) blended with urea on growth, yield and nutrient uptake of wheat

1998 ◽  
Vol 131 (4) ◽  
pp. 389-394 ◽  
Author(s):  
S. N. SHARMA ◽  
R. KUMAR
Keyword(s):  
Nutrient Uptake ◽  
Field Experiments ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
Growth Yield ◽  
Optimum Dose ◽  
New Delhi ◽  
Agricultural Research Institute ◽  
Agronomic Efficiency ◽  
Nitrogen Requirement

Field experiments, conducted during 1992/93 and 1993/94 at the Indian Agricultural Research Institute, New Delhi, indicated that dicyandiamide (DCD) blended with urea produced taller wheat plants with more grains ear−1 and thus higher grain and straw yields than following urea alone. The economic optimum dose (EOD) of nitrogen was estimated to be 73 kg N ha−1 for DCD-blended urea (8[ratio ]2) and 84 kg N ha−1 for urea alone, and the grain kg−1 N of the crop at the EOD was calculated to be 23 kg grain kg−1 N with DCD-blended urea and 18·6 kg grain kg−1 N with urea alone. Thus DCD-blended urea produced more grain using less nitrogen than urea alone. The nitrogen requirement for a targeted yield of 4 t ha−1 was also less when using DCD-blended urea (29 kg N ha−1) than when using urea alone (38 kg N ha−1). The DCD-blended urea resulted in higher N, P and K uptakes, agronomic efficiency and apparent recovery of nitrogen than urea alone.

scholarly journals Increase maize productivity and water use efficiency through application of potassium silicate under water stress

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. A. Gomaa ◽  
Essam E. Kandil ◽  
Atef A. M. Zen El-Dein ◽  
Mamdouh E. M. Abou-Donia ◽  
Hayssam M. Ali ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Deficit ◽  
Water Use ◽  
Field Experiments ◽  
Foliar Application ◽  
Potassium Silicate ◽  
Water Deficit Stress ◽  
Maize Productivity ◽  
Use Efficiency

AbstractIn Egypt, water shortage has become a key limiting factor for agriculture. Water-deficit stress causes different morphological, physiological, and biochemical impacts on plants. Two field experiments were carried out at Etay El-Baroud Station, El-Beheira Governorate, Agriculture Research Center (ARC), Egypt, to evaluate the effect of potassium silicate (K-silicate) of maize productivity and water use efficiency (WUE). A split-plot system in the four replications was used under three irrigation intervals during the 2017 and 2018 seasons. Whereas 10, 15, and 20 days irrigation intervals were allocated in main plots, while the three foliar application treatments of K-silicate (one spray at 40 days after sowing; two sprays at 40 and 60 days; and three sprays at 40, 60, and 80 days, and a control (water spray) were distributed in the subplots. All the treatments were distributed in 4 replicates. The results indicated that irrigation every 15 days gave the highest yield in both components and quality. The highly significant of (WUE) under irrigation every 20 days. Foliar spraying of K-silicate three times resulted in the highest yield. Even under water-deficit stress, irrigation every fifteen days combined with foliar application of K-silicate three times achieved the highest values of grain yield and its components. These results show that K-silicate treatment can increase WUE and produce high grain yield requiring less irrigation.

Two new species of tribe Agalliini (Hemiptera: Cicadellidae: Megophthalminae) with note on intraspecific variations 

Zootaxa ◽  
2018 ◽  
Vol 4378 (3) ◽  
pp. 442 ◽  
Author(s):  
NARESH M. MESHRAM ◽  
STUTI RAI ◽  
N. N. RAJGOPAL ◽  
N. RAMYA
Keyword(s):  
New Species ◽  
Intraspecific Variation ◽  
Male Genitalia ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
New Delhi ◽  
Agricultural Research Institute ◽  
Indian Council ◽  
Intraspecific Variations ◽  
Two New Species

Two new species of leafhoppers, Durgades sineprocessus sp. nov. (From Himachal Pradesh: Kalpa) and Japanagallia dolabra sp. nov. (From Sikkim: Lachung) from India, are described and illustrated. Photographic illustrations of Durgades aviana Viraktamath and a detailed note on intraspecific variation in male genitalia of Austroagallia sinuata (Mulsant & Rey) are also provided. Material is deposited in the National Pusa Collection, Division of Entomology, Indian Council of Agricultural Research-Indian Agricultural Research Institute (ICAR-IARI), New Delhi, India. 

Effect of foliar application of iron and zinc on performance of transplanted rice in middle Gangetic plains of Bihar

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
MOHAMMAD\ HASHIM ◽  
◽  
V K SINGH ◽  
K K SINGH ◽  
SHIVA DHAR ◽  
...  
Keyword(s):  
Agricultural Research ◽  
Foliar Application ◽  
Block Design ◽  
Indian Agricultural Research Institute ◽  
Ferrous Sulphate ◽  
Growth Yield ◽  
Growth Stages ◽  
Higher Plant ◽  
Gangetic Plains ◽  
Iron And Zinc

A field experiment was conducted during kharif season of 2015 and 2016 at research farmof the ICAR- Indian Agricultural Research Institute Regional Station Pusa, Samastipur, Biharto determine the foliar feeding of micronutrients (iron and zinc at different growth stages)on growth, yield and economics of rice in middle Gangetic plains of Bihar. The experimentwas laid out in randomized block design consisting of 9 treatments with 3 replications. Thetreatments consist of 0.5% spray of Zinc Sulphate and 1% spray of Ferrous Sulphate at fourdifferent growth stages i.e. 40, 50, 60 and 70 days aĞer transplanting (DAT) and one con-trol. The results shown significant increasing trends of growth, yield aĴributes and yield ofrice with four sprays of 1.0% solution of FeSO4at 40, 50, 60 and 70 days and three sprays ofZnSO4at 50, 60 and 70 days recorded significantly higher plant height, effective tillers/m2,panicle length, grains/panicle, 1,000-grain weight, biological yield, grain yield and straw yieldat maturity. These treatments also gave significantly higher net returns and benefit: cost ratioover the control.

New record of the genus Baseprocessa (Hemiptera: Cicadellidae: Coelidiinae) from India with description of a new species

Zootaxa ◽  
2021 ◽  
Vol 4999 (5) ◽  
pp. 479-483
Author(s):  
NARESH M. MESHRAM ◽  
MOGILI RAMAIAH ◽  
P R SHASHANK ◽  
STUTI
Keyword(s):  
New Species ◽  
New Record ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
New Combination ◽  
New Delhi ◽  
Distribution Map ◽  
Key To Species ◽  
Agricultural Research Institute ◽  
A New Species

The coelidiinae leafhopper genus Baseprocessa Fan & Li is newly recorded from India based on the description of B. patkaensis Meshram sp. nov. and a proposed new combination, B. serratispatulata (Viraktamath & Meshram) comb. nov. Materials are deposited in the National Pusa Collection, Division of Entomology, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, India. Photographic illustrations, checklist and key to species of this genus along with a distribution map are also provided.

Sorghum-Legume Intercropping and the Effects of Nitrogen Fertilization. I. Yield and Nitrogen Uptake by Crops

1984 ◽  
Vol 20 (3) ◽  
pp. 251-259 ◽  
Author(s):  
A. B. Waghmaref ◽  
S. P. Singh
Keyword(s):  
Nitrogen Uptake ◽  
Nitrogen Fertilization ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
New Delhi ◽  
Total System ◽  
Nitrogen Application ◽  
Agricultural Research Institute ◽  
Maximum Increase ◽  
Four Levels

SUMMARYSix intercropping systems and four levels of nitrogen were compared at the Indian Agricultural Research Institute, New Delhi, in the summer rainy seasons (July-October) of 1978 and 1979. The maximum increase in sorghum yield was obtained when it was associated with fodder cowpea, followed by association with grain cowpea and greengram. The application of 40, 80 and 120 kg N ha−1 increased sorghum yield by 8.6, 16.1 and 18.2% in 1978 and by 2.9, 8.1 and 14.1% in 1979, respectively, compared with unfertilized sorghum. The nitrogen uptake by sorghum, and by the total system, was greater in sorghum-legume intercropping systems than in sole sorghum. Nitrogen application also increased the nitrogen uptake by sorghum and by the whole system.

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